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Y Alloy Crankcases on TTRs


billirwinnz

Well Known and Active Website User
VOC Member
I've been reading through "Back to A" and came across this comment by Carlton Palmer about Y alloy.

My bike was delivered in July 1936 and still has the original cases so Y alloy must have been in use before 1937. Perhaps most TTRs used Y alloy.
 

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