Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Bullion Gold - 12 Speed Shimano - 34T Virtual Parent These will work in all

These will work in all Shimano external or press fit style bottom brackets

The small platform helps re-entry after taking a foot off

or numpty drivers behind you on the roads

These polished stainless steel cables have an ultra-slick surface for long-lasting low friction performance

Stack height: 38

Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Bullion Gold - 12 Speed Shimano - 34T Virtual Parent These will work in allKeep 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.