This piston is 75.00 mm; it must be turned down to your specified dimension. Piston pin included; piston rings not included.
Cylinder diameter STD 72.00 mm.
Compression height 29.30 + 7.20 mm.
Piston length 82.55 mm.
Piston pin diameter 15.87 mm. Length: 63.00 mm
Piston rings: 2.38 x 2.38 x 2.38 mm.
The box is marked “250cc,” but the dimensions correspond to 350cc.