E-Thirteen Helix R Guidering Direct Mount Chainring - E-Thirteen Direct Mount - 32T - 52-55mm Flip - Round - 12-Speed - Intergalactic Alloy eBay Developed for children

Developed for children

This formula will seal larger holes faster and ensure you'll have enough air to cross the finish line

Chainring: A chainring is not included

Bite valve self-seals after each drink

E-Thirteen Helix R Guidering Direct Mount Chainring - E-Thirteen Direct Mount - 32T - 52-55mm Flip - Round - 12-Speed - Intergalactic Alloy eBay Developed for childrenAccording to E*Thirteen, the Helix R Direct Mount Chainring is a game changer. With proven Sram and Shimano 11 or 12 speed cross compatibility applied to an ultra lightweight, durable AL 7075 t6 Chainring and a highly CNCD technical finish. Combine with the chain, derailleur shifter of choice without a change in chain retention quality. Build a dream rig with more freedom and spec creatively. One of the strongest and most durable alloys available, AL