Early BSA Transmission Parts

Pre Unit Construction BSA Transmission Parts under Factory Part Numbers

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