Aither is a special breed of Micro Closed-Cell Polymer Resin which is manufactured in Korea

Chain compatibility: This will work for 5 to 11-speed chains

Once the Shifter Lever is slid over the round assembly

labyrinth (LLU) seals for maximum protection against the elements

The M1 Helmet has four colour choices so there’s something for everyone in sizes from Youth Medium through to Adult XL

Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Black - 9-12 Speed - 34T Back in Stock Aither is a special breedKeep that chain in place where it should be with a Burgtec Thick Thin Chain Ring. Designed with a proven thick thin tooth profile for improved chain retention. Who's this item for: Riders who use 1x drivetrains and are looking for superior chain retention as well as durability. Weight: 0. 08g Pros: Wide range of tooth options. Works for 9, 10, 11, and 12 speed setups. Great build quality. Cons: Oval options not available in all mounting types.