Specialized Power Meter Power Crank Left Arm Shimano 105 5800 170mm

Specialized Power Meter Upgrade Kit Shimano 105 5800 Specialized Power Meter has combined with Shimano 105 to create one of the most convenient options to incorporating a power meter into your bike. Upgrade your ride today! Specifications Specialized/ Shimano 105 FC-5800 Power Meter/ Left Crank Arm Upgrade Kit Crank Arm Length: 170mm Right Crank Arm and Chain Rings not included Compatible with ANT+ and Bluetooth devices Features: Temperature compensation firmware and waterproof enclosures +/- 1.5% real-world accuracy tested on the WinMill and validated by the Locomotion Lab in Boulder, CO. Weight: 215g (170mm) Brand new in Box