Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Black - 12 Speed Shimano - 30T eBay Cogs - 11-13-15-17-20-24-28-32-36-42-46

Cogs - 11-13-15-17-20-24-28-32-36-42-46

PRODUCT CARE

There's even pins behind the largest cog to help stop the chain from damaging your spokes

Adjustable to fit a variety of MTB frames with flat and sloping top tubes

Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Black - 12 Speed Shimano - 30T eBay Cogs - 11-13-15-17-20-24-28-32-36-42-46Keep 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.