Quote:
Originally Posted by GreenTDI
It's a pity that the weight of a tire is never mentioned as a specification.
The almost worn out tires that the car is now driving on, has already lost a lot of thread and therefore weight. Also tires have the least rolling resistance at the end of their life (but also less grip which I sometimes notice).
Anyway, the new tires must have a bigger diameter to change the gearing a bit. That's another aspect of tires.
Current 195/55 let the car go 62 (real) mph at 2000 rpm.
Taller 175/70 for example, would increase it with 5% (~65 mph) at same engine speed.
So yes, a lot to think about!
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Right. Bigger diameter, taller gearing, but also the weight is further from the hub so a hit from rotating mass. You can get tire weights at tirerack.com