BSA B31/B33 Exhaust Pipe High Level, swing. arm 350/500cc 1946- 1 5/8"
BOA-B10H-EXBSA B31/B33 Exhaust Pipe High Level, S/A,
1946-
1 5/8"=41.3mm
The cylinder head must be a diameter of 1 5/8"
1946-1959
chromed
Made in UK
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