Kit consist of a brand new 08 Hayabusa crankshaft, but you can’t buy this one from Suzuki or anyone else. Rod journals are fluted for extra oil at the rod bearings. Micro polished. Computer balanced to less than 1/3 gram. ( these cranks don’t come from Suzuki balanced that well) This allows you to run this crank with the counterbalancer removed if you like. Certificate of balance.
Spacer plate, allows this crank to bolt into earlier busa’s without changing rods or pistons. (Use 08 main bearings) When used with a 1397 motor, it yields 1441cc.
Also available fully lightened and balanced. Includes counterbalancer gear removal and spacer plate. Computer balanced to less that 1/3 gram.