e*13 TRS / XCX Gen2 Cassette Lock Screw

Helix Plus 12-speed, 556% Range

More Range, Less Weight @406g

Engineered for E-bike durability and cross experience compatibility with SRAM™ and Shimano™ drivetrains.

This 9-50T combination is the hot set up for your 12 Speed MTB and allows for a 2 tooth smaller front chainring, shorter chain length, more clearance and range with our exclusive 9 tooth smallest cog.