Elite spare SRAM XDR freehub body wind breaker ±1% power accuracy with high-precision

±1% power accuracy with high-precision strain gauges and acceleration sensors

Durable & Light – Strong yet lightweight for long-lasting performance

Compatible with most cycling computers

while the base is made of injected carbon fiber for the Tirox rail

Durable Chrome Steel: SAE52100 Chrome Steel ensures long-lasting performance and wear resistance

Elite spare SRAM XDR freehub body wind breaker ±1% power accuracy with high-precisionFeatures XD and XDR rear hub driver bodies create a universal mounting system for cassettes with cogs smaller than 11 teeth. Allows the use of lightweight wide range cassettes without requiring new rear axle standards or hub redesigns. Compatible with existing cassette tools for easier installation and maintenance. XD interface is designed for mountain bike applications. Maintains the same hub spacing and flange locations used for 8, 9, and 10 speed