Different profile size tyres front and rear?

spacekiwi

My car has 205/60/16 tyres allround.
But front two now getting baldish..i have two good cond 205/75/16 tyres in shed.
Any reason not to fit these??? Thanks.

Special Circumstances

spacekiwi wrote: »

My car has 205/60/16 tyres allround.
But front two now getting baldish..i have two good cond 205/75/16 tyres in shed.
Any reason not to fit these??? Thanks.

If you have any traction control, stability control etc it might throw a wobbler over the difference between the axles.
Did they come off a van or what, seems like an odd size for a car tyre?

spacekiwi

Off a small van... i know it will pass nct as long as both on same axel.
Just didnt know if it would affect car driving..
Will prob put them both on rear and move originals to front ...
Have no traction cont or anything, so should be ok there...

Prenderb

Whichever end you put them on is going to end up raising the car at least a good 25mm or more higher than a 60% profile....that could affect steering, braking, and as another poster suggested any traction control or dynamic stability system fitted to the car. It could upset how your speedometer reads as well.

I wouldn't put a tyre on that isn't one of the manufacturer's specified sizes - you might find those listed in your vehicle's handbook or printed on the door pillar where the tyre pressures are listed.

Esel

Lower profile tyres should be on the rear.

I used to have a Rav4 and it had two different sized tyres.

It was originally because i needed to replace 2 tyres and realised the previous owner had the wrong size on it. So I got two new tyres the proper size (bigger than what was on it) and put them on the back. The size difference wasn't huge, but it actually looked good as the Rav kinda leaned forward a small bit cos of the bigger tyres on the back. Looked aggressive.


That said, when i did sort the tyres out the only difference i was aware of was that the speedometer was reading marginally different. Never noticed any difference in steering or braking. But again, tyre sizes weren't massively different to start with. Can't recall what they were though.

Stoolbend

Depending on the car they could catch the body work. That's a huge difference in profile for a car.

Alun

That's about 6cm difference in diameter, which is a huge difference.

Also 75% profile tyres are van tyres with a much higher than normal load index meaning much stiffer sidewalls which will affect the handling and ride.

In short, don't do it.

CJhaughey

Your insurance will likely be invalidated if the wrong size tyres were found to be fitted from front to rear.
Believe me the first thing any insurance assessor does is look at tyres.