Front crankset Shimano ULTEGRA FC-R8100-P 172.5MM 12-speed Power Meter w/o CR

With the Ultegra FC-R8100-P Power Meter crank arms Shimano once again ups the ante and offers top-level data analysis. With a fully waterproof design, a rechargeable lithium-ion battery, and Bluetooth LE and ANT+ connectivity, the FC-R8100-P is rider-friendly and ready for whatever riding and racing comes its way. Left/right balance sensors combined with the Shimano Connect Lab web service provide a new level of detail into riding stats.Integrated, waterproof, and rechargeable Li-ion batteryUp to 300+ hours of ride time (Depending on ANT+/Bluetooth LE settings)Accurate data collection: < 1.5% strain gage accuracy throughout the entire calibration range (Depending on ANT+/Bluetooth LE settings) and proprietary strain gaugePossible to start quickly: Simple zero offset calibration with switch on transmitterActive temperature compensation: Software automatically compensates for temperature changesPLEASE NOTE: PRICE IS FOR ONLY CRANK ARMS! CHAINRINGS AND BOTTOM BRACKET ARE NOT INCLUDED!Includes 2 crank arms (left and right with integrated spindle)Speed: 2 x 12 SpeedSpindle Diameter: 24mmBCD: 110mmCrank arms length: 172.5mmChainline: 44.5mmQ-Factor: 148mmThreaded Bottom Bracket Shell Width: 68/70mmCrank Arm Material: AluminumConnectivity: Bluetooth LE, ANT+Run Time: Up to 300+ HoursWeight: N/A