Helix Race 12-Speed 13-52T Cassette Color:Grey with an 800mm width that's

with an 800mm width that's adjustable to 760mm

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

e*thirteen engineered the new Helix Race GR Cranks

Helix Race 12-Speed 13-52T Cassette Color:Grey with an 800mm width that'sMORE 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