E-Thirteen Helix R Guidering Direct Mount Chainring - E-Thirteen Direct Mount - 32T - 52-55mm Flip - Round - 12-Speed - Bronze Alloy netsuite-webdata-created Length: 132mm measuring from the

Length: 132mm measuring from the outer edge of the clamp to the end of the grip

Skinwall / 40c / 700c - 531g

The light head has an IP rating of IPX6

8Ah battery

Fidlock mounting brackets sold separately

E-Thirteen Helix R Guidering Direct Mount Chainring - E-Thirteen Direct Mount - 32T - 52-55mm Flip - Round - 12-Speed - Bronze Alloy netsuite-webdata-created Length: 132mm measuring from theAccording 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