Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Rhodium Silver - 9-12 Speed - 28T Ignore Wholesale Tier 1 Brand Rule While the post does use

While the post does use internal seals (less than other posts) air can sometimes escape to places it shouldn't be

Bolt Circle Diameter (BCD): Direct mount

The Innovative Easy-Fit-System will fit nearly all bike frames

TwistLoc remote included

Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Rhodium Silver - 9-12 Speed - 28T Ignore Wholesale Tier 1 Brand Rule While the post does useKeep 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.