Niche 60cc Big Bore Piston Cylinder Head for Yamaha QT50 Motorcycle MK1000960

Compatible with OEM Part Numbers Yamaha 4J2-11311-00-00, 4J2-11111-00-00,BP4-HS000-00-00, 517-11181-01-00,3PT-11351-00-00, 95380-06600-00,90116-06269-00,3L5-11630-00-00,93310-210M0-00, Compatible with Yamaha 1981-2023 PW50 Includes Cylinder, Cylinder Head, Piston, Piston Rings and Wristpin, Circlips (2) and Needle Bearing Also Includes Head Gasket, Base Gasket, Cylinder Studs, Stud Nuts and NGK Spark Plug Cylinder Bore and Stroke 44.00mm x 39.20mm; Cylinder Material Steel; Cylinder Sleeve Coating None