Fuel Consumption Question - Rims - Please look

[tradertt]

Hi, I have a question which I wonder any one with experience could help answer.

If .. IF I have 2 choices of Wheel Rims ..

1) A 15 inch rim that is heavy (8kg)
2) A 16 inch Rim that is light (6kg)

Which will have a higher fuel consumption? I know that it takes effort and of course more fuel to move a rim that is of bigger size ... but with its weight into effect ... will it be offset or even have better fuel consumption than the 15 inch one?

Thank you for this silly question.

[EstoMax]

i think only the weight affects it.. as long as the total diameter of the tire+rim stays the same

max

[92 Teg-B18A]

Originally posted by Lt. Max
i think only the weight affects it.. as long as the total diameter of the tire+rim stays the same

max
:werd:
I think as long as the unsprung weight is lower then it should in theory help out

(if that made any sense)

[Mikko]

Doesn't it take more energy to accellerate that which is further from the center of rotation? Larger polar movement of inertia.