Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Race Red - 12 Speed Shimano - 34T YGroup_7033416417325 The ‘nano-platelets' are completely biodegradable

The ‘nano-platelets' are completely biodegradable but look like blue glitter so if you do happen to blow a tyre off the rim

Cleat plate firm

Tiagra 4703

2 lockring tool is built from heat treated alloy tool steel for long-term durability

Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Race Red - 12 Speed Shimano - 34T YGroup_7033416417325 The ‘nano-platelets' are completely biodegradableKeep 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.