e-thirteen Helix Plus e*spec 9-50t 12 Speed Cassette XD Driver 5D Peak performance requires optimal hydration

Peak performance requires optimal hydration

This is a higher grade 6804 bearing

How does SpeedBox 3

Intelligent memory circuit remembers the last used brightness level and mode when turned on again

We offer you total peace of mind with a lifetime warranty

e-thirteen Helix Plus e*spec 9-50t 12 Speed Cassette XD Driver 5D Peak performance requires optimal hydrationINDUSTRY LEADING: Helix Plus 12 speed, 556% Range, 406g More Range, Less Weight 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. Future proof your bike, save weight and cash with the Helix Plus