Box Hex Lab's 17T Single Speed Titanium Cog is CNC-machined from 6Al4V-T6 titanium for exceptional strength at a fraction of the weight of steel, delivering durable wear and improved shock absorption over aluminium options. Designed to fit Shimano-compatible freehubs with a 3/32" chain, it features a 5mm wide inner base for a solid interface with the cassette body and is available in natural or rainbow finishes.