E-Thirteen Helix R Guidering Direct Mount Chainring - E-Thirteen Direct Mount - 32T - 52-55mm Flip - Round - 12-Speed - Intergalactic Alloy YGroup_7033430048813 that it's also a portable

that it's also a portable power source that provides you with a USB outlet for recharging your phone or GPS device while out on the trail

to the other bikes on the rack

Adjustable spring tension

Mount: These use the new I-Spec EVO mount for your shifter or dropper lever

Shoe Size: 5-10 (US M) // 37-43 (EU)

E-Thirteen Helix R Guidering Direct Mount Chainring - E-Thirteen Direct Mount - 32T - 52-55mm Flip - Round - 12-Speed - Intergalactic Alloy YGroup_7033430048813 that it's also a portableAccording 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