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BSA B31 Piston +040

BSA B31 Piston +040

B144. 65-0813/040. 65-813.+40.

BSA Piston Assembly +040
71mm +040 (=72mm)
Compression Height: 29.5mm
Piston Clearance 0.12mm or 45thou

PLEASE NOTE! This pistons are only sold with one oil ring at the moment. The included compression rings don't fit and no fitting ones are available at the moment.

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