Di2 and 11 Speed Shimano Integration, and the best ever price!
Complete your dream bike-build with the industry standard in precision power measurement!
The new SRM Shimano 11-Speed PowerMeter is the next generation of seamless dreivetrain integration for Shimano groupo users and Power enthusiasts. Improving over the 7900 series SRM PowerMeter, the SRM Shimano 11-Speed now boasts 3000 hours of battery life! Electronic shifting systems make gear changes faster and virtually eliminate missed shifts, but the forces on the chain rings (not included) are much higher than with mechanical derailleurs.
With this in mind Shimano developed new Dura-Ace 9000 chain rings which are 20% stiffer than previous rings (not included). This not only benefits the shift, but also in power transfer from the crank arm through the spider and into the drivetrain. If you ride Shimano DuraAce 9000 mechanical or Di2 electronic, you will benefit from increased power transmission!
Available models: SRM-DA9000: 110mm BCD (53/39), (50/34), (52/36) (not included)
SRM Wireless PowerMeter
SRM PowerControl 8
Cranks (Shimano FC-SR70 Custom Forged by Shimano for SRM)
Chainrings (Shimano 9000 11 speed – optional)
Heartrate belt (optional)
Wireless speed sensor ANT+ (optional)
SRM X Software
User Manual (downloadable)
USB download cable
PowerMeter weight: 796g
BCD (Bolt circle diameter): 110mm 4-bolt asymmetric
Battery lifetime: 3000 Hours
Accuracy: <1.0% error Power and Cadence transfer via: Wireless only (ANT+)