null Skip to main content

Check out the mini bike sprockets with drums products at OMB Warehouse, all of the highest quality and sourced from leading brands. Good for most mini bikes makes and models. Take the 60 Tooth 35 Chain Sprocket 4-1/2" Drum for Tristar Wheel - Internal Brake. Used for the internal brake. Stamped for added precision, our one-piece #35 chain 60 tooth Steel Sprocket and 4-1/2" Drum combinations provide strong, reliable units at economical prices. (Replaces Riveted assemblies.). The three bolt patterns are as follows:3 holes (5/16") on a 3.75" Bolt Circle, 4 holes (1/4") on a 3.75" Bolt Circle, and 4 holes (1/4") on a 3.228" Bolt Circle (these holes are a bit differently spaced to accommodate the four holes on the mini-hubs. There is a similar product with the same specifications but with a 72 tooth sprocket. Another of our top items in mini bike sprockets and drums is the Brake Drum or Sprocket Hub 1" Bore Universal Bolt Circle new zinc plated hub used for 4'' and 4.5'' brake drums or rear axle sprockets. Dimensions4" Outer Diameter 3/4" Bore with 1/4" keyway & 2 Set Screws. (4) 1/4" Bolt Holes on a 3.228" Bolt Hole Circle. (4) 3/8" Bolt Holes on a 2 7/8" Bolt Hole Circle.