This kit makes it simple to ditch your gears and run a single speed set up without buying a new wheelKit includes alloy spacers a lock nut and a 16t cogSinglespeed spacer kit is compatible with 1/8’’ x 1/2’’ Chains ONLY (BMX Chains).If you’ve got vertical dropouts grab the Simple Tension Seeker and Spacer Kit combo pack and convert your bike in one hit.Size: 16tColour: Black87g all in