Product Description

Lightweight, durable, stiff and designed specifically to work with Bosch and Brose mid-ship motors, EX1 crankarms are purpose-built for the high-torque E-MTB environment.


Key Features:

  • Proven SRAM technologies adapted for the demands of midship-motor E-MTBs
  • Compatible with Bosch, Brose and Yamaha bottom bracket interfaces



  • Arm Material - Aluminum
  • Available Arm Lengths - 170mm
  • Colours - Black
  • Interface - ISIS

Occasionally, without notice, manufacturers change product design and/or specifications.

SRAM EX1 Crank Arm Set (For Ebike)