complete compr. ratio 9.4:1 Dm. 79 mm Made by GPM Middle gudgeon pin to lowest point of piston: 29 mm Middle gudgeon pin to highest point of piston: 41,5 mm Gudgeon pin diam. 19 mm
can be used f. Norton ES2 or 16H higher compression piston - but need a small end bush Piston Clearence 0.12mm or 45thoumit Kolbenbolzen, Kolbenringen und Sicherungsringen