SRM Dura-Ace 9000 Wireless Powermeter
This version of the SRM Power Meter features a larger diameter than Shimano's 7900 version. This adequately accommodates the larger FC-9000 crankset. In addition to allowing the crankset to fit properly, the new platform also provides more accurate measurement of the offset forces and torque... Details BUY THIS PRODUCT!
SRM Campagnolo 4-Bolt Powermeter Crankset
SRM pioneered the crank-based power meter way back in 1987, and has continued to set the standard by which the rest of the industry follows ever since. The SRM power meter boasts an exceptionally precise accuracy window of less than one percent, making it the virtually unassailable bench mark for... Details BUY THIS PRODUCT!