e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 Has a mild cooling function

Has a mild cooling function

Interface : Type-C USB

Brake pads: for Resin brake pads

and faster to fasten the helmet

e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 Has a mild cooling functionAt 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