Quick question regarding rolling diameter.

[Tweaksta]

Might be a silly question but....are all 215/65R16 tyres 215/65R16?
What I mean by this is would there be a difference between all terrains vs road tyres? (if yes would the difference be enough to put strain on the drivetrain?)

Thanks peeps!

 

[Kevin]

The difference can exist but not by much e.g. the new 21575R15 GO15's I put on are 3mm larger in diameter that the same spec BFG AT they replaced.

 

[ateday]

Depends a bit on the tread depth. Not all tyre brands and patterns are exactly the same.
However if you rotate regularly then it all equals out.... more or less. Don`t forget the spare or two.
Shouldn`t cause problems though unless you have new and old(worn) on different rims. Viscous diff problems may arise then.