Power for all whether you ride road or gravel tracking power output for precise training metrics is essential'. '.strtoupper('g')iants all new dual sided power pro power meter makes training with power more accessible to more riders everywhere and features built in gyro sensors that help compensate for ground surge impacts occuring on uneven surfaces delivering clean and accurate data through an integrated system thats precise reliable and simple to set up'. '.strtoupper('f')eatures 6 built in axis gyro sensors inside both crank arm sensors provide vibration compensation by filtering ground surge impacts when riding on uneven surfaces giant exclusive algorithm and auto temperature calibration ensure precise and stable data output to 2 % accuracy free of environmental distractions accelerometer allows magnet free measurement high capacity lithium battery delivers up to 100 hours of riding on a single charge ipx7 waterproof integrated magnetic rechargeable design protects device from water and dust ingress led indicator displays battery level and alerts recharge when power gets below 30% bluetoothreg smart ant compatible for broad compatibility easy calibration and firmware updates'. '.strtoupper('2') year global warranty standard crank lengths available in either 50 34t or 52 36t configuration specifications weight left side 6 g right side 6 g size left 56298mm 2.21.10.3 inch lwh waterproof ipx7 power range 0 ndash 3000 watts cadence range 20 200 rpm available shimano chainring teeth 50 34t or 52 36t available shimano crank arm length 160mm 165mm 170mm 172.5mm 175mm connections ble ant battery type lithium ion battery run time 100 hours battery charge time 1 hr battery life indicator yes accuracy plusmn 2% temperature compensation yes vibration compensation yes left right balance yes pedaling efficiency yes firmware giant ridelink warranty 2 years