Inpeak Shimano Ultegra FC-R8100 Left Power Meter Crank Arm

Inpeak Powercrank left power meter crank arm for Shimano Ultegra FC-R8100, single version. For riders who want to measure watts with their Shimano crankset during training and racing.

• Measures power from 20 to 2000 W with ±2% accuracy
• Connects to cycling computers and apps via ANT+ and Bluetooth Low Energy
• Easy-to-replace CR2032 battery, with a claimed life of up to 200 hours
• Withstands rain and mud thanks to IP67 protection
• Check that there is room for a 10 mm hex key between the crank arm and chainstay

Technical specifications

• Model: Powercrank Ultegra R8100 (FC-R8100), single version, left side
• Crank arm length: 170 mm
• Weight: 10 g (INPEAK device only, additional weight compared with a standard Shimano crank arm)
• Accuracy: ±2%
• Power range: 20-2000 W
• Cadence: 20-200 rpm
• Battery: CR2032 3V, 200 mAh; claimed life of up to 200 hours
• Connectivity: ANT+ and Bluetooth Low Energy
• Protection: IP67
• Interface: Shimano Hollowtech II, 24 mm spindle
• Q-factor: 146 mm for 11-speed cranksets; 148 mm for 12-speed