Appearance | |||
Manufacturers Site | www.lookcycle.com | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. Left-Right balance. | ||
Variants | N/A. Perhaps there will eventually be a version with Titanium axles as is the trend with Look pedals. | ||
Power Unit | Integrated into pedal axles. 8 strain guages per axle. Force and cadence data is sent to the transmitter units and onwards to the head unit with a Polar proprietary protocol W.I.N.D. (i.e. this unit stands out as not ANT+ compatible). | ||
Head Unit | Choose from the Polar CS500, CS600 or CS600X computer. | ||
Installation | Very easy! Use a hex key to change your pedals then configure your crank length and pair to the head unit. | ||
Software | Supplied with Polar ProTrainer software. WKO+ is also compatible with Polar files. | ||
Reliability | TBC | ||
Price | £1500 or £1700 with a Polar CS600 computer. | ||
Service | TBC | ||
Accuracy | Claimed accuracy +/-2% | ||
Calibration | Procedure TBC | ||
Weight Penalty | A good pair of Look Keo pedals (the "Keo2Max Carbon") weighs in at 328 grams including cleats and screws. The Keo Power pedals weigh 405 grams including the transmitter pods and cleats. Weight penalty 77 grams. | ||
Who uses one? | The Cofidis team were involved in testing. We expect to see this device entering the peloton via the many Look &/or Polar sponsored teams. | ||
Top Reviews | Polar promotional Video Look Promotional Videos |
segunda-feira, 31 de dezembro de 2012
POWER METER 6 de 6 - Polar / Look
Polar's first attempt at power measuring technology, a chainstay based chain tension sensor released several years ago, looked like a dogs dinner and unfortunately, without a lot of attention or luck, the data it delivered had a tendency to look much the same. The product of this collaboration with the worlds leading road pedal manufacturer looks altogether more promising. As with the Garmin Vector, assuming the accuracy and durability doesn't disappoint, what is not to like about an easy-to-fit, easy-to-switch power metering device that comes with a minimal weight penalty and a keen price tag? Possibly just one thing - this device communicates only with Polar head units using a Polar proprietaty protocol distinct from ANT+. The first of these devices is shipping at the time of writing so we look forward to sharing comprehensive reviews in due course.
sábado, 29 de dezembro de 2012
POWER METER - 5 de 6 - GARMIN VECTOR
Available from March 2012 this has been a much anticipated device developed initially by MetriGear who were then acquired by Garmin. Clearly Garmin is a respected name with a formiddable product portfilio reaching way beyond the cycling domain so expecations of the Vector are high. As with the Polar/Look Keo Power Pedals, assuming the accuracy and durability doesn't disappoint, what is not to like about an easy-to-fit, easy-to-switch power metering device that comes with a truly trivial weight penalty and a keen price tag? We will link comprehensive reviews when available.
Appearance | |||
Manufacturers Site | www.garmin.com/vector | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. Left-Right power balance. | ||
Variants | N/A | ||
Power Unit | Integrated into pedal axles. Data is sent to the (silver) transmitter units and onwards to the head unit with ANT+ | ||
Head Unit | In theory any ANT+ compatible head unit will suit but as a Garmin product the obvious choice of head unit is the Garmin Edge. | ||
Installation | Very easy! Use a hex key to change your pedals then configure your crank length and pair to the head unit. | ||
Software | TBC | ||
Reliability | TBC | ||
Price | The indicated launch price is £1149. Add £200 for a Garmin Edge 500 head unit and £80 for WKO+. This is a keen "on the road price" £1429. | ||
Service | TBC | ||
Accuracy | An accuracy of +/-2% has been indicated. | ||
Calibration | Procedure TBC | ||
Weight Penalty | A good pair of Look Keo pedals (the "Keo2Max Carbon") weighs in at 328 grams including cleats and screws. The Vector pedals are claimed to weigh 356 grams including the transmitter pods and cleats. Weight penalty 28 grams which appears to make this the least weight-penalty power meter! | ||
Who uses one? | We understand that Garmin-Cervelo will be adopting the Vector in the winter of 2011/12. | ||
Top Reviews | DC Rainmaker |
quinta-feira, 27 de dezembro de 2012
POWER METERS 4 de 6 - POWER 2MAX
http://www.cyclingpowerlab.com/PowerMeterReviews.aspx
As with the SRM & Quarg the Power2Max is a crank based power meter however this one comes with a significant difference - price. Assuming you buy a Power2Max integrated into a Rotor 3D+ crank, possibly the most popular and aesthetically pleasing of several options, this system will set you back just £1000. Add around £100 for some chainrings (not supplied), around £200 for a Garmin Edge computer, and you can enjoy the benefits of power for a price that comes close to that of a G3 PowerTap. The Power2Max hasn't been around for long and comes from a relatively anonymous German company (doesnt so much great engineering?) but early reviews suggest this system lacks little in terms of build quality, accuracy or reliability. Given the limitations of hub based power measuring technologies such as the PowerTap (loss of freedom over wheel choice and the smaller matter of power loss in the drivetrain) we feel this device represents a serious option at it's price point.
As with the SRM & Quarg the Power2Max is a crank based power meter however this one comes with a significant difference - price. Assuming you buy a Power2Max integrated into a Rotor 3D+ crank, possibly the most popular and aesthetically pleasing of several options, this system will set you back just £1000. Add around £100 for some chainrings (not supplied), around £200 for a Garmin Edge computer, and you can enjoy the benefits of power for a price that comes close to that of a G3 PowerTap. The Power2Max hasn't been around for long and comes from a relatively anonymous German company (doesnt so much great engineering?) but early reviews suggest this system lacks little in terms of build quality, accuracy or reliability. Given the limitations of hub based power measuring technologies such as the PowerTap (loss of freedom over wheel choice and the smaller matter of power loss in the drivetrain) we feel this device represents a serious option at it's price point.
Appearance | |||
Manufacturers Site | www.power2max.de | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. | ||
Variants | Available as a stand-alone chainset spider from EUR 690 but most will purchase a unit ready-integrated into one of several possible chainsets. | ||
Power Unit | Integrated into a special chainset spider. 4 strain guages. | ||
Head Unit | At the time of writing there is no dedicated head unit. Any ANT+ compatible computer will suit such as the Garmin Edge 500 (pictured). | ||
Installation | Replacing a modern crankset is fast and easy requiring no special tools however note that the Power2max is generally supplied without chainrings so you will need to fit these. The Power2max measures cadence via an innovative on board accelerometer so there is no magnet to site as with the SRM & Quarg. | ||
Software | There is no proprietary analysis software from Quarg necessitating a separate purchase of TrainingPeaks WKO+. | ||
Reliability | The first units began shipping in 2011 so there is not much of a track record to comment on here. The comments we have seen indicate, so far, consistent and reliable power numbers. | ||
Price | Integrated into a Rotor 3D+ crank you will pay £1000, plus circa £100 for chainrings. Add £200 for a Garmin Edge 500 computer (pictured) and £80 for WKO+ and the "on the road" price is £1380. | ||
Service | Contact the supplier. | ||
Accuracy | Claimed accuracy is +/- 2% assuming good calibration and setting of the "zero-offset" before every ride. This unit has an auto-zero capability which cannot be disabled - some users have expressed concern about risks to accuracy. | ||
Calibration | At the time of writing we understand the field/user calibration is not possible. | ||
Weight Penalty | A Power2max spider compatibible with the Rotor 3D+ chainset weights 470 grams compared to the original spider at 264 grams. Weight penalty 206 grams. | ||
Who uses one? | The manufactuers website reports thant Susanne Buckenlei won the Norseman 2011 with a Power2max. | ||
Top Reviews | Steve Irwin |
quarta-feira, 26 de dezembro de 2012
POWER METER - POWER TAP 3 de 6
The PowerTap has been around since the the turn of the century, appealing due to a significantly lower pricepoint than the SRM and to those riders who prefer the idea of a wheel rather than crank based device. PowerTaps have been adopted by a number of professional cyclists, most visibly making their way into the professional peloton via Garmin Chipotle, and continue to enjoy a significant following. This isn't a system that can be calibrated in the field, we also hear of a few more issue viz-a-viz reliability and longevity (in fairness we compare to the gold standard SRM), but let's be clear - it does the job of accurately measuring power and gets you up and running with power and without breaking the bank.
Appearance | |||
Manufacturers Site | www.cyclops.com | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. | ||
Variants | Several units having different weights and price points, upto the lightest G3C featuring ceramic bearings. Bought either as a stand-alone hub for building into your preferred wheelset (with a choice of hole counts) or integrated into a wheel set. | ||
Power Unit | Integrated into a rear hub. 8 strain guages. Integrated cadence detection. | ||
Head Unit | Compatible with ANT+ computers. Cyclops themselves make and recommend the Joule 2.0 computer. A Joule 1.0 (smaller, better for racers) and Joule 3.0 (larger) also exist. | ||
Installation | Assuming the rider takes delivery of a ready built wheel installation is as simple as swapping this in to the desired bike. | ||
Software | Cyclops supply PowerTap units with their proprietary "PowerAgent" software. Many users have purchased WKO+ | ||
Reliability | We have seen more reports of failed PowerTaps than any other power meter. It seems there comes a point in the life of every PowerTap when the "torque band" fails, the power readings become notably unrealistic, and a return-to-factory service is required. | ||
Price | The PowerTap G3 hub costs £975. Add wheelbuilding or purchase with a basic alloy wheelset for circa £1125. Add a pricey £360 for a Joule 2.0 head unit, £165 for the Joule 1.0 or £200 for a Garmin Edge 500. Minimum "on the road price" for a G3 is therefore £1140. | ||
Service | We have read reports of fast, efficient service whenver a unit needed recalibration or repair. | ||
Accuracy | Claimed accuracy is +/- 2% assuming good calibration (at the factory only) and setting of the "zero-offset" before every ride. There is an "auto zero" function. | ||
Calibration | Not a DIY procedure, requires return to a service centre. See our Power Meter Calibration Calculators for the "stomp" test which is a gross error check. | ||
Weight Penalty | The G3 hub, the lightest of the range, weights in at 325 grams. A Dura Ace 7900 rear hub weighs 254 grams. A weight penalty of 71 grams is impressive. | ||
Who uses one? | The PowerTap was most conspicuous in the professional peloton as an accessory of the Garmin Chipotle team. | ||
Top Reviews | Cyclops (Review Links) Robert Chung (accuracy tests) Bertucci et. al (accuracy versus SRM |
segunda-feira, 24 de dezembro de 2012
POWER METER - 2 de 6 - QUARQ
For several years the choice between power meters amounted to the crank based SRM or the rear hub based PowerTap. Since the SRM has always been the gold standard power meter one can imagine the excitement that came with the launch of a second crank based system, moreso when the device made it's way into the professional peloton via the Cervelo Test Team. A couple of years later, in terms of accuracy and reliability, the Quarg has earned a reputation somewhere between the SRM and the PowerTap but gains with some nice features. Unlike the SRM the user can easily perform a battery change and unlike the PowerTap this is a unit you can recalibrate at home (with a simple iPhone app, Qalvin). Despite early promise there is, as yet, no Quarg head unit billed "Qranium" so the wirelessly transmitted power data would typically be be viewed with a Garmin computer however we expect this device to continue bulding a great following.
Appearance | |||
Manufacturers Site | www.quarg.com | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. | ||
Variants | Normally bought intetrated with your preferred crankset, inc. FSA & SRAM however SRAM acquired Quarg in May 2011 so future choice may be restricted. Compact variants are available. | ||
Power Unit | Integrated into a special chainset spider. 10 strain guages. | ||
Head Unit | At the time of writing there is no dedicated head unit (Qranium) from Quarg. Any ANT+ compatible computer will suit such as the Garmin Edge 500 (pictured). | ||
Installation | Replacing a modern crankset is fast and easy requiring no special tools. The Quarg measures cadence using a super-strong rare earth magnet that can be sited on the chainstay upto 12mm from the inside of the chainset using expoxy putty. | ||
Software | There is no proprietary analysis software from Quarg necessitating a separate purchase of TrainingPeaks WKO+. | ||
Reliability | We have not seen complaints regarding the longevity of Quarg units. We have seen some reports of power spikes (generally caused when the product of torque x cadence leads to a spurious number) and dropouts ocurring in power data from the Quarg and suggestions that the torque applied to chainring bolts can affect the accuracy/consistency of power readings. There is an obvious fix for the latter - a torque wrench + recalibration. | ||
Price | A Quarg integrated into an FSA SL-K Light chainset retails for £1650. Add £200 for a Garmin Edge 500 and £80 for a copy of WKO+ for an "on the road price" of £1920. | ||
Service | The Quarg factory is located in South Dakota, USA. it is unclear if any of the "rest of world" dealers can act as service centres. | ||
Accuracy | Claimed accuracy is +/- 2% assuming good calibration and setting of the "zero-offset" before every ride. There is an option to specify "auto zero". | ||
Calibration | Can be done by the manufacturer, or by any knowledgeable having access to the "Qalvin" iPhone app, including yourself. You can check the calibration with our Power Meter Calibration Calculators There is no need to open the unit or remove it from the bike for calibration. | ||
Weight Penalty | As an example the FSA SL-K Light integrated version weighs 808 grams versus the standard SL-K Light chainset at 580 grams. Penalty 228 grams. | ||
Who uses one? | The Cervelo Test Team used Quarg. | ||
Top Reviews | Pez Cycling News Velonews Competitive Cyclist Flamme Rouge |
The PowerTap has been around since the the turn of the century, appealing due to a significantly lower pricepoint than the SRM and to those riders who prefer the idea of a wheel rather than crank based device. PowerTaps have been adopted by a number of professional cyclists, most visibly making their way into the professional peloton via Garmin Chipotle, and continue to enjoy a significant following. This isn't a system that can be calibrated in the field, we also hear of a few more issue viz-a-viz reliability and longevity (in fairness we compare to the gold standard SRM), but let's be clear - it does the job of accurately measuring power and gets you up and running with power and without breaking the bank. |
Appearance | |||
Manufacturers Site | www.cyclops.com | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. | ||
Variants | Several units having different weights and price points, upto the lightest G3C featuring ceramic bearings. Bought either as a stand-alone hub for building into your preferred wheelset (with a choice of hole counts) or integrated into a wheel set. | ||
Power Unit | Integrated into a rear hub. 8 strain guages. Integrated cadence detection. | ||
Head Unit | Compatible with ANT+ computers. Cyclops themselves make and recommend the Joule 2.0 computer. A Joule 1.0 (smaller, better for racers) and Joule 3.0 (larger) also exist. | ||
Installation | Assuming the rider takes delivery of a ready built wheel installation is as simple as swapping this in to the desired bike. | ||
Software | Cyclops supply PowerTap units with their proprietary "PowerAgent" software. Many users have purchased WKO+ | ||
Reliability | We have seen more reports of failed PowerTaps than any other power meter. It seems there comes a point in the life of every PowerTap when the "torque band" fails, the power readings become notably unrealistic, and a return-to-factory service is required. | ||
Price | The PowerTap G3 hub costs £975. Add wheelbuilding or purchase with a basic alloy wheelset for circa £1125. Add a pricey £360 for a Joule 2.0 head unit, £165 for the Joule 1.0 or £200 for a Garmin Edge 500. Minimum "on the road price" for a G3 is therefore £1140. | ||
Service | We have read reports of fast, efficient service whenver a unit needed recalibration or repair. | ||
Accuracy | Claimed accuracy is +/- 2% assuming good calibration (at the factory only) and setting of the "zero-offset" before every ride. There is an "auto zero" function. | ||
Calibration | Not a DIY procedure, requires return to a service centre. See our Power Meter Calibration Calculators for the "stomp" test which is a gross error check. | ||
Weight Penalty | The G3 hub, the lightest of the range, weights in at 325 grams. A Dura Ace 7900 rear hub weighs 254 grams. A weight penalty of 71 grams is impressive. | ||
Who uses one? | The PowerTap was most conspicuous in the professional peloton as an accessory of the Garmin Chipotle team. | ||
Top Reviews | Cyclops (Review Links) Robert Chung (accuracy tests) Bertucci et. al (accuracy versus SRM) |
As with the SRM & Quarg the Power2Max is a crank based power meter however this one comes with a significant difference - price. Assuming you buy a Power2Max integrated into a Rotor 3D+ crank, possibly the most popular and aesthetically pleasing of several options, this system will set you back just £1000. Add around £100 for some chainrings (not supplied), around £200 for a Garmin Edge computer, and you can enjoy the benefits of power for a price that comes close to that of a G3 PowerTap. The Power2Max hasn't been around for long and comes from a relatively anonymous German company (doesnt so much great engineering?) but early reviews suggest this system lacks little in terms of build quality, accuracy or reliability. Given the limitations of hub based power measuring technologies such as the PowerTap (loss of freedom over wheel choice and the smaller matter of power loss in the drivetrain) we feel this device represents a serious option at it's price point. |
Appearance | |||
Manufacturers Site | www.power2max.de | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. | ||
Variants | Available as a stand-alone chainset spider from EUR 690 but most will purchase a unit ready-integrated into one of several possible chainsets. | ||
Power Unit | Integrated into a special chainset spider. 4 strain guages. | ||
Head Unit | At the time of writing there is no dedicated head unit. Any ANT+ compatible computer will suit such as the Garmin Edge 500 (pictured). | ||
Installation | Replacing a modern crankset is fast and easy requiring no special tools however note that the Power2max is generally supplied without chainrings so you will need to fit these. The Power2max measures cadence via an innovative on board accelerometer so there is no magnet to site as with the SRM & Quarg. | ||
Software | There is no proprietary analysis software from Quarg necessitating a separate purchase of TrainingPeaks WKO+. | ||
Reliability | The first units began shipping in 2011 so there is not much of a track record to comment on here. The comments we have seen indicate, so far, consistent and reliable power numbers. | ||
Price | Integrated into a Rotor 3D+ crank you will pay £1000, plus circa £100 for chainrings. Add £200 for a Garmin Edge 500 computer (pictured) and £80 for WKO+ and the "on the road" price is £1380. | ||
Service | Contact the supplier. | ||
Accuracy | Claimed accuracy is +/- 2% assuming good calibration and setting of the "zero-offset" before every ride. This unit has an auto-zero capability which cannot be disabled - some users have expressed concern about risks to accuracy. | ||
Calibration | At the time of writing we understand the field/user calibration is not possible. | ||
Weight Penalty | A Power2max spider compatibible with the Rotor 3D+ chainset weights 470 grams compared to the original spider at 264 grams. Weight penalty 206 grams. | ||
Who uses one? | The manufactuers website reports thant Susanne Buckenlei won the Norseman 2011 with a Power2max. | ||
Top Reviews | Steve Irwin |
Available from March 2012 this has been a much anticipated device developed initially by MetriGear who were then acquired by Garmin. Clearly Garmin is a respected name with a formiddable product portfilio reaching way beyond the cycling domain so expecations of the Vector are high. As with the Polar/Look Keo Power Pedals, assuming the accuracy and durability doesn't disappoint, what is not to like about an easy-to-fit, easy-to-switch power metering device that comes with a truly trivial weight penalty and a keen price tag? We will link comprehensive reviews when available. |
Appearance | |||
Manufacturers Site | www.garmin.com/vector | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. Left-Right power balance. | ||
Variants | N/A | ||
Power Unit | Integrated into pedal axles. Data is sent to the (silver) transmitter units and onwards to the head unit with ANT+ | ||
Head Unit | In theory any ANT+ compatible head unit will suit but as a Garmin product the obvious choice of head unit is the Garmin Edge. | ||
Installation | Very easy! Use a hex key to change your pedals then configure your crank length and pair to the head unit. | ||
Software | TBC | ||
Reliability | TBC | ||
Price | The indicated launch price is £1149. Add £200 for a Garmin Edge 500 head unit and £80 for WKO+. This is a keen "on the road price" £1429. | ||
Service | TBC | ||
Accuracy | An accuracy of +/-2% has been indicated. | ||
Calibration | Procedure TBC | ||
Weight Penalty | A good pair of Look Keo pedals (the "Keo2Max Carbon") weighs in at 328 grams including cleats and screws. The Vector pedals are claimed to weigh 356 grams including the transmitter pods and cleats. Weight penalty 28 grams which appears to make this the least weight-penalty power meter! | ||
Who uses one? | We understand that Garmin-Cervelo will be adopting the Vector in the winter of 2011/12. | ||
Top Reviews | DC Rainmaker |
Polar's first attempt at power measuring technology, a chainstay based chain tension sensor released several years ago, looked like a dogs dinner and unfortunately, without a lot of attention or luck, the data it delivered had a tendency to look much the same. The product of this collaboration with the worlds leading road pedal manufacturer looks altogether more promising. As with the Garmin Vector, assuming the accuracy and durability doesn't disappoint, what is not to like about an easy-to-fit, easy-to-switch power metering device that comes with a minimal weight penalty and a keen price tag? Possibly just one thing - this device communicates only with Polar head units using a Polar proprietaty protocol distinct from ANT+. The first of these devices is shipping at the time of writing so we look forward to sharing comprehensive reviews in due course. |
Appearance | |||
Manufacturers Site | www.lookcycle.com | ||
Data Measured | Speed, cadence, HR, power, ride time. Max and average (as applicable). Kilojoules energy spend. Left-Right balance. | ||
Variants | N/A. Perhaps there will eventually be a version with Titanium axles as is the trend with Look pedals. | ||
Power Unit | Integrated into pedal axles. 8 strain guages per axle. Force and cadence data is sent to the transmitter units and onwards to the head unit with a Polar proprietary protocol W.I.N.D. (i.e. this unit stands out as not ANT+ compatible). | ||
Head Unit | Choose from the Polar CS500, CS600 or CS600X computer. | ||
Installation | Very easy! Use a hex key to change your pedals then configure your crank length and pair to the head unit. | ||
Software | Supplied with Polar ProTrainer software. WKO+ is also compatible with Polar files. | ||
Reliability | TBC | ||
Price | £1500 or £1700 with a Polar CS600 computer. | ||
Service | TBC | ||
Accuracy | Claimed accuracy +/-2% | ||
Calibration | Procedure TBC | ||
Weight Penalty | A good pair of Look Keo pedals (the "Keo2Max Carbon") weighs in at 328 grams including cleats and screws. The Keo Power pedals weigh 405 grams including the transmitter pods and cleats. Weight penalty 77 grams. | ||
Who uses one? | The Cofidis team were involved in testing. We expect to see this device entering the peloton via the many Look &/or Polar sponsored teams. | ||
Top Reviews | Polar promotional Video Look Promotional Videos |
Manufacturers Site: www.brimbrothers.com
The Brim Brothers Zone is a "forthcoming" device that may become the first cleat based power meter. The thinking goes that power is specific to a rider, not a bike, so why not have the cyclist wear the power measuring device in his cleats / on his shoes, then it transfers easily to whatever bike he may want to ride in a way that crank, hub or pedal based devices cannot. At the time of writing we have seen pictures of prototype devices but little else. We wish them well in delivering this product to market.
The Brim Brothers Zone is a "forthcoming" device that may become the first cleat based power meter. The thinking goes that power is specific to a rider, not a bike, so why not have the cyclist wear the power measuring device in his cleats / on his shoes, then it transfers easily to whatever bike he may want to ride in a way that crank, hub or pedal based devices cannot. At the time of writing we have seen pictures of prototype devices but little else. We wish them well in delivering this product to market.
Manufacturers Site: www.ibikesports.com
The IBike device does not directly measure power output, instead it estimates power by attempting to capture all of the forces the cyclist may be experiencing (gravity, via climb), (air resistance, via an inbuilt wind speed sensor...greatly dependent on your CdA), (rolling resistance, via speed) and (acceleration, via an inbuilt accelerometer). If you beleive in the laws of physics (at Cycling Power Models we most certainly do), if you beleive in your ability to calibrate the device accurately and you beleive in some of the assumptions it may make (not so easy) then your only remaining concern would be the kinds of measurement errors that might plague this device. The iBike has been around since 2006 but it has not achieved a significant following.
The IBike device does not directly measure power output, instead it estimates power by attempting to capture all of the forces the cyclist may be experiencing (gravity, via climb), (air resistance, via an inbuilt wind speed sensor...greatly dependent on your CdA), (rolling resistance, via speed) and (acceleration, via an inbuilt accelerometer). If you beleive in the laws of physics (at Cycling Power Models we most certainly do), if you beleive in your ability to calibrate the device accurately and you beleive in some of the assumptions it may make (not so easy) then your only remaining concern would be the kinds of measurement errors that might plague this device. The iBike has been around since 2006 but it has not achieved a significant following.
Manufacturers Site: www.ergomousa.com
The Ergomo has experienced a chequered past. Originally launched in 2003, relaunched in 2005, and again in 2010, the companies history has been punctuated by technical problems with the product leading to cessation of trading and even bankruptcy. The device itself is effectively a bottom bracket that measures power at the left crank, and then doubles it. Obvious issues are the maturing trend away from separate crank and bottom bracket intallations (eg Shimano Hollowtech), the history of technical problems (including but not limited to water ingress at what is the lowest point in any bike frame), and the reality that not everybodies power output is twice the left hand side. This is perhaps a shame, the Ergomo gained some popularity for a sophisticated head unit, Triathlon Choice magazine voting it "most innovative product" in 2008, but we feel it would be a brave eccentric who would invest in the latest incarnation of the system.
The Ergomo has experienced a chequered past. Originally launched in 2003, relaunched in 2005, and again in 2010, the companies history has been punctuated by technical problems with the product leading to cessation of trading and even bankruptcy. The device itself is effectively a bottom bracket that measures power at the left crank, and then doubles it. Obvious issues are the maturing trend away from separate crank and bottom bracket intallations (eg Shimano Hollowtech), the history of technical problems (including but not limited to water ingress at what is the lowest point in any bike frame), and the reality that not everybodies power output is twice the left hand side. This is perhaps a shame, the Ergomo gained some popularity for a sophisticated head unit, Triathlon Choice magazine voting it "most innovative product" in 2008, but we feel it would be a brave eccentric who would invest in the latest incarnation of the system.
sábado, 22 de dezembro de 2012
POWER METERS 1 de 6 - SRM
There are two prerequisites to successfully adopt a power centric training philosophy: the time required to understand, interpret and ultimately benefit from all of the data that will be seen and collected; and the non-trivial investment in a power meter. Here we outline the competing units and collate links to a number of independent product reviews.
SRM Quarg PowerTap Power2Max Garmin (MetriGear) Vector Polar/Look Keo Power Pedals Others
The SRM is the longest living, most proven, highest profile device, the gold standard in cycling power meters. First developed around 20 years ago it was adopted by elite cyclists as early as 1988, including the innovative Greg Lemond & "The Doctor" Chris Boardman. Knowledgeable coaches suggest it is the least prone to failure meaning it will last a very long time, plus it can be recalibrated using a simple procedure, as often as you like. The head unit is a fine example of industrial engineering, compact and robust, it fits very securely offering all of the computer functionality that a racing cyclist needs and none of the extras he doesnt. |
Appearance
| |||
Manufacturers Site
| |||
Data Measured
|
Speed, cadence, HR, power, ride time. Max and average (as applicable). Intervals. Kilojoules energy spend. Later models have a barometric altimeter supporting total ascent.
| ||
Variants
|
Normally bought intetrated with your preferred crankset, inc. dura ace, FSA, Sram also in compact variants with the expected choices of crank arm lengths.
| ||
Power Unit
|
Integrated into a special chainset spider. 8 strain guages. (20 in a unique "science" version!)
| ||
Head Unit
|
Wired versions work with the Powercontrol V, newer wireless versions with the Powercontrol VI, 7 or any ANT+ compatible device.
| ||
Installation
|
Replacing a modern crankset is fast and easy requiring no special tools, plus the head unit is easy to fit onto any standard size handlebars. The unit requires a sensor fitted a few millimetres from the crank spider, either underneath the bottom bracket housing or on a seat stay. There are a few options here depending on frame design: a rubber band (supplied), zipp ties, an adapter on the cable guides, or silicone, not a problem. Wired versions require a bit of tactical cable routing but again this is not difficult
| ||
Software
|
SRMWin is included with the device, this will always be the software of choice to configure the head unit, and allows simple ride analysis. As with all manufacturers software it is not as rich as some of the dedicated analyis packages such as TrainingPeaks & Golden Cheetah which would be a recommended extra.
| ||
Reliability
|
SRM's have an exceptional reputation for reliability. The crank spider may need a battery change after a couple of years usage and it's advisable to have this done by a dealer if not SRM in Germany which probably incurs 2-way shipping costs. The head unit battery will also need replacing by a dealer when it stops holding it's charge, unlikely inside 2 years. Some care is required not to break the connection wires in the wired variant. We have seen reports of water ingres to the cranks in earlier models but this is not recognised as a common issue.
| ||
Price
|
The gold standard power meter rightly commands a gold standard price of £2900 for the Dura Ace "professional" system including the head unit. You can save £250 by purchasing just the base unit and adopting a Garmin Edge 500 computer instead of SRM's own PowerControl. Keep in mind that the package you are buying includes a high end chainset, heart rate monitor and computer so you can discount the price of all these things or at least the value of selling what you have from the price, e.g. £300 for the Dura Ace 7900 chainset.
| ||
Service
|
SRM has service centres at the factory in Germany, in the US and in the UK, all are noted for efficiency and quick turnaround. Tip:keep the box that your crank came in, it it will come in handy when the time comes to courier despatch your beloved SRM for service.
| ||
Accuracy
|
Most cranksets incorporate the "Professional" unit with 8 strtain guages, accuracy is +/- 2% assuming good calibration and setting of the "zero-offset" before every ride.
| ||
Calibration
|
Can be done by the manufacturer in conjunction with a battery change, or by any knowledgeable person inluding yourself. See our Power Meter Calibration Calculators There is no need to open the unit or remove it from the bike for calibration.
| ||
Weight Penalty
|
As an example the Dura Ace 7900 chainset integrating the SRM spider weights just 80 grams more than the standard Dura Ace 7900 chainset.
| ||
Who uses one?
|
Countless professional riders. At the time of writing SRM list 9 Pro-Tour teams using SRM's.
|
sexta-feira, 21 de dezembro de 2012
PROGRAMAÇAO
DO FIM DE SEMANA DE 22/12
IRON 2013 70.3 PANAMA E OCEANSIDE
60km na barra + corrida
( joa, são conrado , htl nacional e volta
tri short ou olimpico /
60km na barra + corrida joá ( bate e
volta)
CICLISMO
/ Le etape 2013 / GFNY
·
60km no plano , pedal social c Prof Bruno Germano
·
40km na barra + cristo , via alto
·
3 hs de montanha
saídas:
6:40 na loja renato estrella
7:30 na padaria
sec XX no jardim botanico
CRUCE DE LOS ANDES
sabado - 2hs de montanha livre /
domingo - 60 min de areia fofa + 4x o setimo ceu ou 2hs de treino de ciclismo
na montanha
quinta-feira, 20 de dezembro de 2012
TREINAMENTO: PERÍODO DE TRANSIÇÃO
Prof Rita Medeiros
tempo de brincar,
descansar e treinar leve
Definição de Transição: “processo ou período de mudança
de um estado ou condição para outro estado ou outra condição”
Como qualquer outro planejamento, o treinamento de um
indivíduo, seja ele profissional ou amador, requer uma organização: um
princípio, um meio e um fim, independente do desporto envolvido.
Nas mais variadas
escolas de treinamento desportivo e seus diferentes metodos organizacionais
teremos todo o trabalho separado em ciclos de treinamento, ora chamados de
ciclo: olimpico, anual , semestral e independendo da duracao de cada um ainda
teremos seu macro, meso ou microciclos, onde cada um deles é responsavel pelo
desenvolvimento de uma qualidade fisica ou variavel fisiologica
prioritariamente.
Geralmente , o período de transicao ocorre no fim de uma
temporada, e nem sempre coincidindo com a época do fim do ano, pois algumas
temporadas ocorrem sem seguir o calendario corrente de janeiro a dezembro , ou
onde o indivíduo descansa de uma fase estressante de treinos e competições.
Essa fase ocorre normalmente, logo após à competição alvo.
Muitos pensam que somente os aspectos físicos devem ser
levados em consideração nesta etapa, porem , Hann 1991, relata que o objetivo
maior desta fase é a recuperacao do sistema nervoso central, decorrente da soma
do estresse físico e mental ocorridos na temporada anterior.
Alguns atletas optam por não fazer nada durante esse
período , ou reduzem abruptamente os treinos, causando, segundo Israel , 1972 ,
a sindrome do destreinamento ou a
síndrome de dependencia de exercicios , relatada por Kuipers e Keizer 1988.
Essas duas síndromes podem causar nos atletas alguns
sintomas físicos , tias como: insônia,
dores de cabeça, distúrbios psíquicos, exaustão, tensão, distúrbios de humor,
falta de apetite e depressão psicológica dentre outros
Diante disso, é importante que o atleta quebre um pouco
sua rotina de treinos, aumentando o seu tempo de descanso e muitas vezes
fazendo uma atividade física que não seja a sua atividade principal. É importante neste período, que o individuo não
esteja num estado totalmente inerte , de maneira que sua condicao física nao
caia muito, mas que intensidades utilizadas em treinos intensos não sejam
focadas. Atividades recreativas são de
bom gosto assim como coletivas , onde o atleta deverá buscar prazer na
realização de uma seção de atividade física
É valioso durante esta etapa que o atleta recupere se
física, mental e emocionalmente do trabalho intenso durante a preparação e as
competições e estando preparado para o proximo ciclo de treinos (temporada).
Exercícios de alongamento, fortalecimento e relaxamento também são
aconselháveis, assim como trabalhos de percepção corporal, para que o atleta
mantenha a forma nesta época.
quarta-feira, 19 de dezembro de 2012
BOICOTE
Boicote ou boicotagem
é o ato de recusar quaisquer relações com um indivíduo ou uma coletividade (
wikpédia)
Este termo começou a ser usado
abertamente nos esportes na Olimpiada de 1980 na antiga Uniao Sovietica. Em
funçao da invasao Russa ao Afgenistao , o Presidente Carter (USA), decidiu nao
enviar os atletas de seu país aqueles jogos. Já em 1984, sendo a Olimpiada em
Los Angeles, a URSS, exerceu a mesma prática,, fazendo com que os Jogos Olímpicos fossem o cenário de uma
rixa política das maiores forças do Planeta
Na olímpiada de Seul, 1988, as
duas grandes forças do cenário mundial voltaram aos jogos, mas a Coréia do Norte
, por ter seu pedido de co - realizar os jogos atendido, nao participou dos
mesmos , assim como Cuba , devido ao comunismo e solidária a Coréia do Norte.
Vemos assim que o boicote toma
proporções inimaginaveis em todas as esferas, e trouxemos este tema a tona pois temos visto
um grande numero de atletas que se inscrevem em provas, muitas vezes de grande
magnitude, e na hora de encarar os fatos de treinar e conciliar a vida privada
com os treinos começa a arranjar um monte de desculpas e se boicotar.
Alguns fatos sao importantes
de serem considerados quando entramos num programa de treinos e provas:
·
quase todos somos amadores;
·
fazemos as provas e treinos
como uma superaçao pessoal;
·
todos tem pouco tempo para
treinos e devemos os conciliar com a vida pessoal;
·
treinamos de forma orientada
para otimizar acima de tudo nosso tempo, nao incorrer em danos a nossa saúde e
prosperar físicamente;
·
nao devemos nada a ninguem;
·
gostamos da ludicidade da
prática da atividade física;
·
fazemos o nosso melhor;
·
não podemos submeter nosso
corpo a esforços alem de suas capacidades;
·
devemos ser o mais regrados
possiveis para poder desfrutar de treinos e vida da melhor forma;
·
nao temos motivos para
justificar faltas, mas ao faze-las saber que comprometemos acima de tudo nossa
saúde e nao somente um resultado;
·
dimensionemos de forma
adequada nossas metas, nao por modismo, mas acima de tudo por aquilo que gostamos
e podemos fazer;
·
devemos saber conciliar os
esporte e a vida particular, onde ambos co - existem de forma harmoniosa e se
complementam.
Diante dos ítens listados
acima, procure fazer a sua parte nos treinos e mantenha sua disciplina e foco.
O beneficiado será sempre voce , nas esferas , física, social e profissional.
conte conosco
sábado, 15 de dezembro de 2012
TREINO DE DOMINGO
AQUARIO AS 7HS NO POSTO 6 EM COPA , em funcao da prova as 9:30 , nadaremos a este horario. Peço a todos , que as 6:50 olhem no Face Book, para quem nao tem , mande um sms, pois caso o mar esteja manso sera em ipanema.
A corrida sera no mesmo local da natacao as 8:15 da manha
Aqueles que desejarem pedalar com o outros atletas, podem marcar o encontro as 7:30 no mesmo local do aquario
A corrida sera no mesmo local da natacao as 8:15 da manha
Aqueles que desejarem pedalar com o outros atletas, podem marcar o encontro as 7:30 no mesmo local do aquario
sexta-feira, 14 de dezembro de 2012
FIM DE SEMANA 14 -12
SABADO
- Ironman - 120 a 140km ( caso desejem, podem fazer o treino do Le Etape desde que com bike de estrada)
- Panama City 70.3 - 90km ( os que forem fazer o Iron , fazem a distancia do Iron )
- Oceanside 70.3 - 80 km ( os que forem fazer o Iron , fazem a distancia do Iron )
- Short Tri e Olimpico - 60km barra ou estrada
- GranFondo NY - 80km estrada ou 3hs de montanha
- Le Etape 2013 - 100km estrada ( c alto da boa vista) ou 3hs de montanha
- Ciclismo = Le etape 2013
- Treino de montanha - JB - Cristo e vale
- Iniciantes com a Profa Rita no alphaville das 7:15 as 9:15 (interessados que nao sabem o local, favor enviar um email solicitando o mapa)
No treino de ciclismo na barra , havera a formação de diferentes grupos que rodarao em velocidades distintas
mage:6:30
renato estrella barrinha: 6:45
padaria sec XX: 6:30
alphaville: 7:15
DOMINGO
Aquario a confirmar em funcao da prova no posto 6 em copacabana e dependendo da condicao do mar o treino sera em ipanema
Corrida (programacao sera combinada com o aquario, podendo mudar o local , caso nao haja o treino no mar)
- Iron 2013 - apos o aquario , 18km, com 2 subidas ao setimo ceu
- Panama City 70.3 - 18km ( os que forem fazer o Iron , fazem a distancia do Iron )
- Oceanside 70.3 - 16 km
- Maratona da Disney - 28km
- 1/2 Maratona da Disney - 16km
- Desafio do pateta - sabado 18km ; domingo 24km
- Demais corredores - 10 a 12km
HORARIOS e LOCAIS DE DOMINGO
OLHAR O SITE AMANHA APOS AS 17HS
Assinar:
Postagens (Atom)