Quote:
Originally Posted by Hersbird
So a big tire might have a better RE score but a smaller tire give you better feul economy because there is more to it than RR.
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Exactly
My C rated winter tyres return the same (even slightly better) FE than the 10mm wider summer B rated ones on larger & heavier rims.
The winter tyres' smaller size, lower weight is more than compensating for their worse RR and less favourable driving conditions.
Go for (or stick with) light (wheels) & narrow if your goal is FE.