SRM's time-tested powermeter is matched to Rotor's ultra-stiff triple-hollow 3D+ crankset for precise power measurement and power transfer on every ride. The Rotor 3D+ is compatible with BB30/PF30 and BBright bottom bracket standards. Accurate to +/- 1.5%, the SRM can be paired with your favorite ANT+ bike computer for the ultimate training and racing system.
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