Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Race Red - 9-12 Speed - 28T Needs Images The Speed Knee stays in

The Speed Knee stays in place with silicone grippers and the seamless construction keeps them extremely comfortable

The quick-release mechanisms are made from aluminium for strength and weight savings

Precision Alloy Cups with better tolerances than plastic cups

The super lightweight back protector insert is developed in three waist-to-shoulder dimensions in order to cover all the body sizes

The SuperB 2 in 1 Display Stand is simple and effective bike stand to use for displays

Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Race Red - 9-12 Speed - 28T Needs Images The Speed Knee stays inKeep 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.