Take your training to the next level by training with power.This quarq powermeter is GXP compatible and is a lightweight and proven wireless power meter. in all environments -- road, triathlon and cyclocross. It is accurate to +/- 2% and features a tool-less, user-replaceable battery and ANT+? technology, which gives it the flexibility to work with any ANT+? compatible display unit.Features+/- 2% accuracyTool-less, user-replaceable batteryANT+? compatiblePower[ed]MSRPGXP $1795Condition