INPEAK 105 R7100 Power Meter Crank Arm The INPEAK 105 R7100 Power Meter Crank Arm is the most popular option in the INPEAK range, created from a genuine passion for cycling. More than a simple measuring device, it acts as a reliable training partner that helps riders progress to a higher level of performance. INPEAK Reliable Data Transmission The INPEAK POWERCRANK system uses both ANT plus and BLE transmission protocols to send power, cadence and a wide range of detailed cycling metrics to compatible devices. Its waterproof and impact resistant housing is built to meet the demands of MTB, gravel and road riding, ensuring dependable operation in tough conditions. INPEAK Consistent Accuracy With long run times powered by a standard CR2023 battery, the unit delivers consistent performance. ATC automatic temperature compensation ensures precise power measurement in all conditions, maintaining accuracy from minus five to fifty degrees Celsius. In The Box Crank with integrated power meter Instruction manual Sticker set Spare O-Ring Device data card 1x CR2032 battery