Get precision power for all your rides. The Rally(TM) XC210 power meter pedals for off-road (compatible with SHIMANO SPD cleats) provide accurate power data and allow you to easily swap to Rally(TM) RS210 or RK210 road pedal bodies. XC210 models are dual-sensing for additional metrics, including left/right balance and more. The redesigned, all-metal pedals offer more clearance and enhanced durability. They're also rechargeable with up to 90 hours of ride time. Put your pedals in travel mode during transport to conserve battery life. These power meters are highly responsive and +/- 1% accurate. To maximize accuracy, the Pedal IQ(TM) smart calibration feature alerts you when you need to calibrate based on several factors.