The EX1 drive train was designed specifically for the demands of electric-assist mountain bikes: a wide gear range with bigger jumps between gears and sturdy components to handle higher torque loads. Liberal use of features found on SRAMâ€™s high end MTB parts provide high value, quiet operation and ease of service.
X-Sync (wide-narrow) tooth profiles for great chain management
Compatible with Bosch mid-drive E-bike systems
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