Helix Race 12-Speed 13-52T Cassette Color:Grey and about 10% over new

and about 10% over new "Filless" competitor valves

The Pro SP front hub runs TPX bearings with the dual black/sterling silver anodized finish of the Pro range

Superboost)

Low roll resistance design

we bring our mountain bike racing heritage to bear and create wheels with the optimal blend of performance and reliability

Helix Race 12-Speed 13-52T Cassette Color:Grey and about 10% over newMORE POWER. OPTIMAL CADENCE. At 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