Mountain bike racing has reached a new level of training technology with bikes now being equipped with power measurement devices. Once a course has been completed, the entire segment can be analyzed for power, cadence, heart rate and speed. This data collection has been shown to improve a rider’s training in preparation for specific events, as well as impacting decisions for tire-tread selection, tire air pressure and suspension set up!
A rider’s physical input into the pedals can lead to critical seconds at the finish line. With the increase in 1X drivetrain popularity, the 1X MTB SRM PowerMeter has become the new standard for professional gravity racers for power measurement devices! Completely sealed from the elements, the 1X MTB SRM PowerMeter can be used in the nastiest, muddiest conditions without fail! Thanks to its 104 BCD spider design for rings ranging from 30t to 38t. The SRM PowerMeter for Sram MTB is compatible to all Sram direct mount MTB cranks.
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.
Light & Stiff with Seamless Integration thanks to the direct mount.
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 | 156mm or 168mm |
| Chainline | Boost and Standard |
| Battery Life | >100h (rechargable) |
| Warranty | 2 Year World-Wide |
| Accuracy | ±1% (Scientifically Proven) |
| Weight | 515-652 grams |
| Materials | Unidirectional Carbon Crankarms |
| Chain Rings | 30, 32, 34, 36, 38 |
| BCD | 104 mm |
| Crank Lengths | 170mm, 175mm |
