e*thirteen Helix Race 12-Speed 13-52T Cassette - Intergalactic Giant Jan Sale Ultegra Di2 – Effortlessly accurate

Ultegra Di2 – Effortlessly accurate shifting from Shimano's penultimate electronic 12-speed drivetrain

Medium: 56-58cm

MA from 100% carbon fiber with replaceable stainless screw and washer

Greasing tools kit

e*thirteen Helix Race 12-Speed 13-52T Cassette - Intergalactic Giant Jan Sale Ultegra Di2 – Effortlessly accurateAt 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