BSA A&B Group Swinging arm models (1958-) with 4 spring clutch.
Triumph Pre-Unit 500/650cc Twins models with 5 plate clutch.
Number of Teeth: 43T
Chain Type: Single
OEM: 57-1549,42-3266
$130.00
BSA A&B Group Swinging arm models (1958-) with 4 spring clutch.
Triumph Pre-Unit 500/650cc Twins models with 5 plate clutch.
Number of Teeth: 43T
Chain Type: Single
OEM: 57-1549,42-3266