Hi folks, I got given this QD rear drum, I've not seen them with breather holes like this before. Anyone know what was up with this? Some kind of racing modification for cooling???
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BMF
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Hi Brett,
Hth.
Regards,
Neither Meriden nor Small Heath cast QD drums, the name of the caster escapes me right now, better-known for making lawnmowers (not Atco) ...
Uh-uh. "1040" is part of the Triumph part number (W1040) for a standard '63-'70 46-tooth QD drum. I speculate the holes were bored for an off-road special, so any water entering the drum fording a river, say, drained out quickly.
Hth.
Regards,
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