Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Race Red - 9-12 Speed - 32T YGroup_8342151725101 Tube rotates while magnet stays

Tube rotates while magnet stays in place

Closure or Slip-on: These are a slip on knee pad

With Ultimate

The is a huge improvement over previous designs and will prolong the life

Burgtec Thick-Thin Direct Mount Chain Ring - SRAM Direct Mount - 3mm Boost - Round - Race Red - 9-12 Speed - 32T YGroup_8342151725101 Tube rotates while magnet staysKeep 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.