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BSA B40, C15/ Triumph T15,T20 Mainshaft Bush OEM: 57-1147
BSA B40, C15/ Triumph T15, T20 Mainshaft Bush A gearbox mainshaft bush suitable for a BSA C15 and B40 unit singles as well as the Triumph TIger Cub T20.
A brass bush, located in the inner gearbox cover.
Measurements: OD : 19.8mm ID : 15.89mm
OEM: 40-0223, 57-1147