Tyre sizes issues

[firebobby]

My daughters Fiesta needs a new tyre, I have 2 brand new tyres in my garage, The tyres on the car are 175/65/14 and the new tyres are 165/65/14. I have asked the garage to change the new ones for the 2 worse ones on the car.
The guy at the garage says he would keep the tyres sizes all the same on all 4 wheels, I want to fit the 2 new 165 tyres on the front and the 175's will be on the rear.
Is this a problem, as I thought there are cars which run wider tyres on the rear ??

 

[makeitfit]

10mm is no big deal and as you say slightly smaller at the front will be fine. Equal tyres on each "axle" so no probs :thumb2

 

[Banshee]

10mm is no big deal and as you say slightly smaller at the front will be fine. Equal tyres on each "axle" so no probs :thumb2

As above, my brother has done this on his C2 I believe

 

[firebobby]

Thank you guys, that what I was thinking, don't know why the garage guy brought it up, unless he thought I was going to mix them on the axle :nenau

 

[rustic]

Thank you guys, that what I was thinking, don't know why the garage guy brought it up, unless he thought I was going to mix them on the axle :nenau

Make sure the rim width is approved with the tyre, all rims have a range of widths of tyre that are approved.
Also tyres have a range of widths of rim that are approved too, and different manufacturers have different approved widths even for the same size tyres, easily checked on the internet via the manufacturers web site.

Also... what size spare will you carry, :nenau one for the front OR one for the rear, as you don't want to mix tyres on axles following a puncture either.

When I upgraded my tyres on my Mav from 215's to 235's I went through all this, and I also had to report the mod to the insurance company..

Also check speed rating of new tyres are suitable for the model of car... and NOT the type of driving you are doing.

In the olden days when I was changing over from cross ply to radials on a mini... , I carried two spares in the boot....

 

[makeitfit]

Even with regards to spare the size diff is so small you'd be fine even if a front one blew. Open diff will manage.

 

[Sweety]

TBH i'd fit the larger 175's on the front due to traction & braking & put the 165's on the back:augie years ago I upgraded the tyres on my old Escort & had 175 on the front & 155's on the back for a good 6 months due to money being tight & to get the last bit of wear out of the 155's. The car handled fine & I drove it very hard

 

[Terranosaurus]

TBH i'd fit the larger 175's on the front due to traction & braking & put the 165's on the back:augie years ago I upgraded the tyres on my old Escort & had 175 on the front & 155's on the back for a good 6 months due to money being tight & to get the last bit of wear out of the 155's. The car handled fine & I drove it very hard

Agree - put the bigger ones on the axle that dies the most work, on a fwd car definitely the front. Larger rear tyres tend to be fitted to high power rwd sports cars, there's also an effect where a wider rear track actually gains you grip with a narrower front end hence many sports and race cars are wider at the back.

 

[firebobby]

Larger ones on the front, will do.
Thanks for the info chaps :thumb2

 

[AlexD333]

Being an old man now.... *sigh* sorry.. :doh

I imagine if your daughter were to be involved in a crash the insurance comp may disapprove of the different tyre sizes (if spotted)

Might be worth. Call, I cant see any mechanical issue with it?

Lots of sports cars have staggered tyres,:nenau