Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Bullion Gold - 12 Speed Shimano - 34T Exclusive Pockets: No pockets on the

Pockets: No pockets on the Boundary

Front and rear shifter

Just about as strong as they come

Illuminate the track at night with its included handlebar mount or purchase the optional helmet mount to use it on the trails

Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Bullion Gold - 12 Speed Shimano - 34T Exclusive Pockets: No pockets on theKeep 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.