Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Toxic Barbie Pink - 12 Speed Shimano - 30T YGroup_7033711493165 Surface active technology eliminates stiction

Surface active technology eliminates stiction

stretch build helps keep the temperature down

The latex is sustainable though both extreme weather and altitudes

5mm 16 notch bottom bracket tool

Burgtec Thick-Thin Direct Mount Chain Ring - Shimano Direct Mount - 3mm Boost - Round - Toxic Barbie Pink - 12 Speed Shimano - 30T YGroup_7033711493165 Surface active technology eliminates stictionKeep 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.