e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 The short 70mm reach has

The short 70mm reach has been a popular choice in recent years

Bottom Bracket Shell Width: 61mm* to 73mm

These Time RXS replacement cleats works with all RXS and Impact pedal systems

semi-aero barstem features optimised hand positioning and moulded cable entry ports

carbon bodies and ceramic bearings

e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 The short 70mm reach hasAt e*thirteen, we're always striving to bring something new to the table. That's why we created the Helix cassette line to offer unparalleled cross compatibility without sacrificing performance. As e bikes have become more popular, we set out to engineer a close ratio cassette specifically for them. Enter the Helix Race 13 52T a 12 speed close ratio cassette specifically engineered for steep terrain where climbing speeds are high and descents are