Quote:
Originally Posted by EvoFire
My experience with the DWS06+ wasn't the same. I went from the OEM Bridgestones to DWS and found rolling resistance to be much higher, yes I went from 245-255 and upped 1" in diameter, but I was still surprised how much difference it made. I never measured the fuel economy but I could feel the car slowing down quicker after I let off the throttle.
The OEM tires were actually great if it weren't for that nail. They were decent in the snow, handled decent, comfortable for a runflat. Overall decent all around.
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If I am reading you right -- you went from 245 -> 255, and you upped the wheel diameter by 1". In this case, I would attribute the subjective difference (ie. what you felt from driving) to be more of a tire width increase + wheel diameter/weight increase more than the difference in tire model. Wheel weight differences are quite obvious from a subjective standpoint, and even if the measured weight of a larger diameter wheel is similar to the weight of a smaller diameter wheel, the fact that the weight is located further out with the larger diameter wheel means more torque is required to drive the wheel, and you feel that difference when you drive.
Objectively though, increased wheel weight does not affect acceleration very much -- at least when you are not in a competitive setting.