This is the older model of the small clutches. The bonded plate has small outer lips that pass through the clutch basket. Many pre war makes use this. About 1952 it was replaced by the B52 clutch.
Typical Triumph clutch roller. Fits all twins 1938-1985You need 20x per bikeAlso used on BSA A50/65; BSA number: 42-3206Burman CP clutch uses the same 24x
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