e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 Bottom Bracket: T47i

Bottom Bracket: T47i

secondary fabric: 80% recycled polyester 14% elastane 5% polyester 1% carbon

Designed to support the largest computers like the Wahoo ACE

SP-RVB-ST1X-B1

7” (10 L)

e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 Bottom Bracket: T47iAt 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