The Whites Chain Adjusting Tool is a tool specifically designed for chain adjustment on single-sided swingarm motorcycles. The tool is used to tighten the eccentric hub on single-sided swingarm bikes that tightens the chain. Constructed from 304 stainless steel for exceptional strength, durability and corrosion resistance. Compatible with single-sided swingarm bikes Stainless steel construction for strength and durability Corrosion resistant