650 750. 850 cc. Commando all SS Models
1 Set = 4 Springs small + 4Springs big 06-7822. 06-7823. NM22838. NM22839
1967-1975
big springs:
L: 42mm, OD: 33mm, ID: 25mm
small springs:
L: 39mm, OD: 24mm, ID: 18mm
1946-1953
Hep 11341+40
+040 = 86 mm
65-1262
Compr. ration 6.8:1
to be used with flywheels
65-1235 und 65-1235
to be used with conrod 66-482
Piston Clearence 0.12mm or 45thou
Gudgeon Pin: 19mm
Compression Height: 31.1mm
for long conrod B33 M33 B34 Gold Star
distance between 2 ends of piston ring must be 0,5 mm