Early BSA Transmission Parts

Pre Unit Construction BSA Transmission Parts under Factory Part Numbers
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  • 15-2419 Clutch Plate
    Clutch Friction Plate
    Fits BSA Empire Star
    and M20 models with
    single spring clutch
    up to 1947 or so..
    Inside Diameter: 90.5mm
    Outside Diameter: 125mm
    NZ$ 27.85
    NZ$ 25.05
  • 15-4139 Spring
    Main Spring
    Gear Change Pawl
    BSA M & B Singles
    NZ$ 5.35
    NZ$ 4.80
  • 15-4141 Pawl
    Gear Change Pawl
    BSA M & B Singles
    NZ$ 10.75
    NZ$ 9.65
  • 15-4142 Pawl
    Gear Change Pawl
    BSA B & M Singles
    NZ$ 10.75
    NZ$ 9.65
  • 15-4308 Clutch Plate
    Clutch Sliding Plate
    Fits BSA Empire Star
    and M20 models with
    single spring clutch
    NZ$ 107.35
    NZ$ 96.60
  • 15-4312 Clutch Nut
    Clutch Spring Nut
    Fits BSA Empire Star
    and M20 models with
    single spring clutch
    up to 1947
    NZ$ 38.90
    NZ$ 35.05
  • 15-5664 Nut
    GEARBOX ADJUSTER NUT
    Pre-Unit BSA
    A B & M models
    NZ$ 14.50
    NZ$ 13.05

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