Mini Bike Build - Rear Sprocket 60T #420

Rear sprocket for the Mini Bike Build: 60-tooth for #420 chain (0.500in pitch), with true tooth geometry computed from chain math - pitch diameter 9.553in, outside diameter 9.841in, root diameter 9.247in. Center bore 1.750in, four 0.328in holes on a 3.000in bolt circle, optional lightening holes drawn; cut from 0.188in steel (design spec). Ships as a print-ready tiled PDF (5 pages, Letter size, 0.5in overlap, numbered tiles with an assembly key) - print at 100% and tape the pages together. One flag rides on this sheet: the hub pattern - 4 holes on a 3.000in bolt circle with a 1.750in bore - is a design spec; match-drill to your hub if it differs - VERIFY ON VEHICLE (printed on the drawing).