• Upgrade your existing SRAM Road or Quarq
crankset with Quarq DZero powermeter spider
• 11/10 x 1/2 speed compatible
• Fits all SRAM/ Quarq road cranks with removable spider (w. 8-bolt spider/arm interface)
• Ant+ / Bluetooth low energy
• +/- 1.5% accuracy
• AxCad accelerometer cadence (no magnet)
• Omincal: power measurement independent from chaining
• IPX7 waterproof for all weather use
• No rings
• 2 year limited warranty
• 142g