e*thirteen Helix Plus 12-Speed 9-50T Cassette - Black Wahoo+ZWIFTJulySale was born with this idea

was born with this idea in mind

and 9 bits

Aero and sound optimized ear covers

Cannondale Ergo XC

Italian materials - Constructed with a woven fabric with a high compression-to-weight ratio and excellent thermo-regulation

e*thirteen Helix Plus 12-Speed 9-50T Cassette - Black Wahoo+ZWIFTJulySale was born with this ideaEngineered for E bike durability and cross experience compatible with SRAM, Shimano, and TRP Shifters and Derailleurs of the same gearing count and similar cage capacity. This 9 50T combination is the hot setup 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, and save weight and cash with the Helix Plus Cassette.