e*thirteen Helix Race 12-Speed 13-52T Cassette - Intergalactic Size:13-52 Compatible with virtually all derailleur-equipped

Compatible with virtually all derailleur-equipped bicycles including Shimano® Direct Mount hangers

(2013-2016)

disruptive daytime flash patterns

Take one gel every 20–40 minutes depending on your planned carbohydrate intake

Specifically

e*thirteen Helix Race 12-Speed 13-52T Cassette - Intergalactic Size:13-52 Compatible with virtually all derailleur-equippedAt 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