E70 21" tyre sizes
 

Hello,

On the E70, is it ok to use on the rear 315/30 and in the front 275/35 tyres on the 21 rim?

Rims are style 239

Factory says to use 325/30 on the rear and 285/35 in the front for 21 inch rim

What is the precise OD of each tire? or better the "Revolutions per mile" of each?

Keep the revs/mile within 1%. (Like 713 and 720...or 713 and 706..just examples)


Checking, it looks like you may be fine...


https://www.tacomaworld.com/tirecalc...5r21-315-30r21


looks like 3 revs per mile difference, or only 0.5




Oh, I assume the widths are fine for those tires- i didnt check. Look at the specific tire you are buying, it will list a 'width range'... if the rim is in there, you are OK.