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Going 12 Speed on Your Road Bike
Jun 17, 2019

Going 12 Speed on Your Road Bike

XD R stands for XD Road, and it is based off SRAM’S highly successful XD driver for mountain bikes. The simple idea behind XD and XDR drivers was to allow SRAM to bring you a wider gear range by allowing you to run a smaller cog than can currently be fitted on standard freehub bodies.

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