e*thirteen Helix Race 12-Speed 13-52T Cassette - Naranja Size:13-52 but it also contemporizes the

but it also contemporizes the look of your super bike

and RideControl Go 2 button for intuitive interaction

Bullet-shaped design to easily carry in your pocket

6 combined solid and flash output modes

e*thirteen Helix Race 12-Speed 13-52T Cassette - Naranja Size:13-52 but it also contemporizes theAt 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