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BSA UNIT SINGLES

C15, C25, B25, B40, B44, B441, B50
TRIUMPH TR25W, TR25T, TR50

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We stock most useful parts for these BSA's and Triumphs. The part numbers are confusing. BSA often uses 40-.... and 42-.... and Triumph  57.... and 70-.... for the same part.
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SPROCKET B24/44, TR25W
37-2321/52
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Fits non conical wheels, 5/8 x 1/4" chain, 52T

CONICAL HEADRACES
40-5143CO
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Fit  B25/40/44, price for 2.

RUBBER SEAL IN OIL PRESSURE RELIEF VALVE
70-2793
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ENGINE BOLT SET B25/50 OIF
BSAEBS8
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engine bolt set B25/50 oil in frame 1971-72, 73

B44 PISTON
ZMCB44
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MC brand piston for B44. New old stock. Very good quality piston made in J.. in the the 70's for a Californian distributor. Complete with rings, gudgeon pin and circlips.
STD IS 78.5MM