DMR - Single Speed Spacer KitThis DMR single speed spacer kit makes it simple to ditch your gears and run a single speed set up without buying a new wheel. The single speed spacer kit includes alloy spacers a lock nut and a 16t cog.Single speed spacer kit is compatible with 1/8’’ x 1/2’’ Chains ONLY (‘’BMX’’ Chains) Sizes16TWeight87g