Ahhh remember the AM4 linings. Had them in my T350 Suzuki.
Turned the drums gold !
A longer leading edge shamfer made then more usable from cold from memory?
Turned the drum brakes into something special in the 70's !!!
Here ya go Grumph !!!! my second race meeting ever, Porirua 71 .
Managed to hold out Discombe and Wylie for 3 laps until I ran wide and they got by.
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