The EX1 drivetrain 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 SRAM's high-end MTB parts provides high value, quiet operation, and ease of service.
- Built for high torque E-MTB conditions
- Use with Bosch-compatible or Direct Mount SRAM X-Sync chainrings (sold separately)