Thread: Tyre question

That is only another 5% extra in profile.
Surprisingly that makes it 3.3% different so your speedo will read slower than you are actually going.
Max allowable without certs is 5%.

Tyre size meanings
245/75R16 = 245mm width of tyre / 75% of width is the profile/sidewall height R16 is of course the rim diameter.

A mint tyre size calculator to use is Tire size calculator
We use it a lot at work.