Sold out Quick view BULLY Bully, 3/4" Bore, 3 Disc, 6 Spring, 4000 rpm Engagement Bully 3/4" bore, 3 disc, 6 spring clutch. Used on tracks requiring heavy clutch usage. Heavy clutch usage would be a result of either a heavy kart such as the Super Heavy or Champ class, or a track... $409.99 $399.99 Out of stock