Interesting. I'd not thought about those radii. Relatively sharp edges seem quite popular in motorsport. I'm not doing track days, so I don't have those arbitrary rules to contend with. As long as it's safe and meets the regulations in the Blue Book, I'm alright. Wheel balance and securely attaching wheel trims are my main concerns with altering the wheels. Fairing in the rear wheels is trivial though as the bodywork is slightly wider than the wheels.
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