M20/21 SINGLE SPRING CLUTCH
Also known as the AA clutch.
!

CLUTCH PUSH ROD

15-4261
!
DIAM 1/4"
LENGTH 12 3/4"
Alt number 29-3477
M20/21 >1947, C11G 1954-57

CLUTCH CENTRE AA TYPE

15-4306
!

AA CLUTCH STEEL PLATE INTERNAL LIPS

15-4307
!
Outer diameter 126,3mm, Inner 86mm, inside lips 77,6mm
Need 3  of these per bike. AA clutch = central spring clutch.
For external lip plates see 66-3812

CENTRAL CLUTCH NUT

15-4312
!
Clutch nut M20. This is the central nut in many BSA’s and it has often been hammered!

GASKET UNDER BOWLERHAT

15-4316
!
Gasket for the central clutch cover

CLUTCH ROLLER

26-0650
!
M20/21 USE 22 of these 1/4" x 5/16" rollers
A7 >1950 needs 18x

CORK SLEEVE ON CLUTCH SHAFT

66-3813
!

AA CLUTCH DRUM

68-3809
!
NEW
Brand new clutch housing for the single spring clutch. Impressive quality.  British Made.