BSA Piston M20 Std.
BOA12b/Std. 66-1190/Std. 8216BSA Piston M20 Std.
Replica
complete
82mm
Piston Clearance 0.12mm or 45thou
These pistons now come with 4 piston rings.
You can also use them only with 3 piston rings.
BSA Piston M20 Std.
Replica
complete
82mm
Piston Clearance 0.12mm or 45thou
These pistons now come with 4 piston rings.
You can also use them only with 3 piston rings.
