Fits all Z50, ST50 and ST70 (Monkey & Dax 1979-87
TB V1 head with 22/25 valves and race cam etc.
108cc Stroker Crank with Race Head, 52mm Bore Kit, and 24mm Carb kit. Also, includes a high volume oil pump and cam sprocket.
See pic no 3 for the flywheel needed to fit this TB crank shaft.