Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Race Red - 9-12 Speed - 30T YGroup_7033640484909 Strong rotating tip system ensures

Strong rotating tip system ensures smooth operation and long life

The 50 Lumen rear light mounts with a custom made silicone o-rings

Materials: These are alloy cranks

By eliminating unwanted chain movement

These are NOT compatible with Spank Ø32 front hubs

Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Race Red - 9-12 Speed - 30T YGroup_7033640484909 Strong rotating tip system ensuresKeep 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.