Helix Plus Cassette 12s AL Cogs 42-50T e*thirteen S3-Cat-Bleedkit ZIPP SERVICE COURSE SL 17°

ZIPP SERVICE COURSE SL 17° STEM

120ml Bottle

1 × Anti Vibration Module

and thus enhanced carrying comfort

Helix Plus Cassette 12s AL Cogs 42-50T e*thirteen S3-Cat-Bleedkit ZIPP SERVICE COURSE SL 17°e*thirteen 12 Speed Aluminum Replacement cluster 42 50T for a 9 50 Helix Cassette Black Helix Plus cassettes have replaceable gear clusters. That means ongoing service and replacement costs will be less than half that of SRAM cassettes. As an added bonus, Helix 12s clusters are backward compatible with and can be used to upgrade your existing TRS+ 9 50 cassette. When installing the Helix Plus cassette, as with any cassette, we recommend checking chain