Quote:
Originally Posted by Othen
I didn't bother weighing them, but I really doubt there is any weight saving between a 205/55R16 tyre on a steel wheel and 225/40R18 on an alloy one, so the unsprung weight issue will not be significant. The shorter, and therefore stiffer sidewall argument is probably valid, but the counter is that the very wide tyre acts like a drum and amplifies road noise.
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Alloy wheels are a lot lighter than their steel counterparts Alan, i'll try and get out (without being blown away) later to weigh a steel rim and a corresponding alloy.
The other thing with very wide tyres is that they can "tramline" along ridges in the road easier than narrower tyres and are more susceptible to road camber changes.