BSA Gold Star Piston Pre Unit DBD +020 = 85,5 mm
CR: 10,1
including gudgeon Pin, piston rings and circlips
Piston clearance 0,12 mm
Gudgeon Pin diameter 19 mm
JP
AJS/Matchless Piston 350cc +080 1948-62 = 71 mm
Gudgeon Pin: 22 mm - 7/8"
f. Alloy Cylinderhead 1949-1962
Iron cyl head 1948-1950
including gudgeon Pin, piston rings and circlips
Piston Clearance 0.12mm or 45thou
Total Height: 85 mm
Middle gudgeon pin to top: 53 mm
Middle gudgeon pin to 1st ring 26 mm
Middlge gudgeon pin to top, before it domes: 42 mm
Diameter: 70.5mm
f.e.: 16MS 1952
JP