This is military specification

Proper Chain Length:

Materials: Foam

Bottom Type IS - Integrated

Large recommended for shoe sizes: 10-15 (us) // 43-49 (eu)

Burgtec Thick-Thin Alloy Chain Ring - 104 BCD - Round - Black - 9-12 Speed - 32T algolia-ignore This is military specificationKeep 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. Mounting style: 96 64mm PCD Weight: 56g (30t) Pros: Wide range of tooth options. Works for 9, 10, 11, and 12 speed setups. Great build quality. Cons: Oval options not available