The SRM Science Track PowerMeter was designed to be the pinnacle of precise power measurement in the sport of track cycling. Track cycling has always been a focus for SRM, due to the detailed nature of specific training intervals as well as the close timing of competition to the thousandth of a second. In Track cycling 1 watt truly matters between victory and missing the podium!
Reinforced to allow for sprinting forces up to 4000 watts, the SRM Science Track is built to measure the most extreme forces, as well as the most subtle changes in a cyclist’s pedal stroke. Capable of accepting multiple chainring sizes without need for recalibration. The SRM Science Track PowerMeter version is available for Octalink bottom brackets with a dual 144 BCD, for threaded or two piece chain ring screws.
SRM Spider PowerMeters are the Origin of mobile power measurement. Since 1986 we have continuously refined our PowerMeters to meet ever-higher standards in technology, accuracy and reliability. For that reason, our PowerMeters are widely seen as the Gold-Standard for training with power.
Our 9th generation Spider PowerMeter takes our proven formula and updates it with modern features. The result is a PowerMeter that is easier to use, even more accurate, longer-lasting, and has improved connectivity.
Thanks to a combination of angle and torque measurement, the PM9 is now able to measure with higher accuracy in very low cadence situations and oval chain-rings do no longer have an impact on the recorded data. The integrated temperature sensor allows for maximum accuracy in changing conditions. Users are now able to show L&R balance, as well as combined Pedal smoothness.
PowerMeter 9 comes with many usability improvements. First is the Magnet-less cadence mode, which allows you to use the PowerMeter without any cadence magnet.
PowerMeter 9 can be used with ANT+ and Bluetooth LE. It connects to pretty much any head unit and comes with a mobile App. The App gives you access to live torque data, battery status information, firmware updates, and much more.
The choice of the world’s fastest track riders for over 20 years!
Precisely measure power to within 0.5% of error!
Each SRM PowerMeter and PowerControl head-unit are made one at a time, by hand. Our production facilities are located in Julich, Germany and Colorado Springs USA. Every step of production is carried out by highly trained engineers and technicians who have a passion for quality craftsmanship.
A three-year global-warranty protects against defects and backs up your investments. Add on the industry's leading accuracy and data reception rate for a truly unrivaled power measurement device.
SRM uses a 144 point calibration protocol against a known mass measured to the exact gram. With exacting calibration and our auto-offset feature, the resulting power measurement of the SRM has error of less than 1%. The scientific community has been publishing peer reviewed research for over 20 years using the SRM PowerMeter as the bench mark for measuring power in physiological and human performance research studies. We don't claim anything, our accuracy is proven.
SRM's are designed to take whatever you can throw at them. From freezing temperatures, to boiling heat, SRM's are designed to handle temperature compensation while maintaining accuracy with our "Auto" offset feature. Each SRM is designed to be sealed against water, snow, mud, sand, and cleaning solvents. SRM's are designed to work. Period.
| Q-Factor | 141 mm |
| ANT+ Sport | Yes |
| Battery Life | Approx. 1400h ride time (battery, one year shelf time accounts for 500h ride time) |
| Warranty | 2 Year World-Wide |
| Accuracy | ±0.5% (Scientifically Proven) |
| Weight | 738 grams |
| Materials | 7075 Aluminium Crank Arms |
| ChainRings | Chainrings Not Included |
| BCD | 144 mm |
| Crank Lengths | 165, 167, 170, 172, 175, 177, 180 |
