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and a KS dropper
accurate shifts with a smooth
Extremely lightweight at only 18 grams
it supports dropping a chainring size to take full advantage of e*thirteen’s proprietary 9T smallest cog
plus the latest Flight Attendant technology that learns from your ride data and instantaneously switches between Open
Helix Race Cluster 12s 42-50T e*thirteen Grey S3-Colour-Red and a KS droppere*thirteen Helix Race Cluster 12 Speed 42 50T Grey Unlike SRAM Eagle, Helix Race 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 Race 12s clusters are backward compatible with and can be used to upgrade your existing TRS+ 9 50 cassette. When installing the Helix Race cassette, as with any cassette, we recommend checking chain wear. If
