Steel mini-hub with set screws are designed for smaller sprockets. Adapts to Azusa 4-1/2" brake drum. 3.228" bolt circle, 4" OD. Also for Indus pattern sprockets. For 1" axle. Zinc plated. Use withkey stock.
Use with these steel and aluminum mini-sprockets
|OEM Replacement This part is aftermarket equipment designed to replace the original manufacturer's part numbers specified here. It is manufactured using high-quality materials, to the same specifications as the original part.||Azusa 2561|