The SRM PowerMeter / SRAM XX1 1X MTB is compatible with all SRAM “Direct Mount” MTB Cranks.
Thanks to the new PowerMeter design you now have boost and non-boos compatibility in one unit. The rechargeable battery will last you around 100 hours until you can recharge it with the included magnetic USB cable, no battery change necessary!
SRAM cranks with PF30 bottom bracket are not compatible.
The picture shown is for illustration purpose only. Actual product may vary due to product enhancement.