This extremely handy little dandy will add or subtract 1/2 a link (1/2") from your chain, allowing you to move the axle 1/4" forward or backward to dial in chain tension or slam that rear wheel.
Compatible with all standard KMC 3/32" track/single speed chains.
ⓘ This is not compatible with Izumi Model V Super Toughness Narrow, Izumi Sup
