DIYMINIBIKES

Product Description
72 Tooth 4-1/2″ Sprocket Drum 35 Chain for Astro Wheel w/ Hardware Also Fits vintage JD Enterprises wheels found on Mickey Thompson minibikes. Stamped for added precision, our one-piece #35 chain 72 tooth Steel Sprocket and 4-1/2″ Drum combinations provide strong, reliable units at economical prices. (Replaces Riveted assemblies.)
The four bolt patterns are as follows:
3 holes (5/16″) on a 3.75″ Bolt Circle
5 Holes for the Astro wheels
4 holes (1/4″) on a 3.75″ Bolt Circle
4 holes (1/4″) on on a 3.228″ Bolt Circle (these holes are a bit differently spaced to accommodate the four holes on the mini-hubs AZ_2561 / AZ_2568 / AZ_2565)