e*thirteen Helix Race 12-Speed 9-50T Cassette - Grey EOSSale SR13 cassettes adopt the N3W

SR13 cassettes adopt the N3W freewheel body

A new suspension setup been developed

Number of gears - rear: 8

The result is a refined collection of wheels that are purpose built to be best-in-class and provide the maximum speed and efficiency benefit available for their intended discipline application

Extra-long hose for added reach and durable steel barrel and large stable base makes this the perfect floor pump for all bikes

e*thirteen Helix Race 12-Speed 9-50T Cassette - Grey EOSSale SR13 cassettes adopt the N3WThe HELIX Race Cassette is an upgrade to any SRAM Eagle or Shimano shifter and derailluer combination*, with more range than any other cassette on the market. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance but an overall lighter drivetrain. Features Compatible with SRAM, Shimano and TRP shifters and derailleurs of the same gearing count and similar cage