Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Race Red - 12 Speed Shimano - 34T Needs Images Touchscreen Technology

Touchscreen Technology

Suitable for use on e-bikes

The SPA-1 is perfect for adjusting cups found on adjustable BBs

11 and 12 speed chains: Replace at

Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Race Red - 12 Speed Shimano - 34T Needs Images Touchscreen TechnologyKeep 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.