Full engine rebuild kit to suit Yamaha YZ450F 2020, 2021, 2022, with a Vertex forged piston kit, Mitaka double forged connecting rod kit, gasket set and seal set, plus Koyo main bearings.
Vertex Piston Kit
Piston - Forged aluminium alloy, CNC machined, Tin coated.
Rings - Heat treated, and coated for excellent performance and durability.
Gudgeon Pin - Hollow, forged, steel alloy, chromed, high strength and hardness.
Mitaka Gasket Set
Head gasket, Base gasket, Valve stem seals, Timing chain tensioner seal or gasket, Exhaust pipe copper ring or gasket, Clutch cover gasket, Side case gasket, Water pump gasket, Ignition cover gasket & various O-rings if required.
Mitaka Seal Set
Includes all seals required, Main bearings, Conrod oil feed, Countershaft, Clutch rod lever, Gear shift shaft, Water pump, etc
Mitaka Connecting Rod Kit
Forged shot peened connecting rod made using the latest steel alloy for OEM quality and strength, chromed crank pin, quality big end roller bearing designed for high speeds with flat silver bearing cage.
Koyo Main Bearings
The bearings used are high quality Japanese bearings by Koyo. Koyo is an OEM for Kawasaki, Suzuki, Yamaha.
All Mitaka components are engineered to OEM specifications or higher using the same manufacturing techniques and high quality materials.
PLEASE NOTE IMAGES FOR ILLUSTRATION ONLY. The images shown are the same components and brand but a different fitment. You will receive the item listed above.