tyre size question

seabreeze_3

hi i went and got three new tyres on my car yesterday mot time but the car seems to be pulling to one side after the car passed the mot today so there is nothing wrong mechanically but he has put 2 tyres on the same size as the old ones but but the 3rd one is different size to the others the sizes are
3 of 155/65r13 73t
1 of 165/65r13 77t m&s this one is on the offside rear
any advise would be helpful beacuse if it is dangerous or not right i need to go back and get him to change it
any help would be good thanx

dieselglider

He's obviously fitted the wrong tyre by mistake (I would hope!), and should be beside himself to get his mistake sorted pdq.

Very strange he didn't notice this at the time, or were there two fitters involved?

saintjanet

I agree ,the 165 is a wider tyre get them to change it.

seabreeze_3

i sat in the waiting room but from what i could see there were 3 young lads so it seems i'll get hubby to take it back they might not try to pull the wool with him i just hope they admit they dropped one
thanx

Conor_3

It is illegal to have different sizes on the same axle. So a 155 on the rear left and a 165 on the rear right is illegal but 155's on both sides on the front and 165's on both sides on the rear is legal.

stumpjumper

the 165/55/R13 is 2.4% smaller in circumferance - so when your speedo reads 60mph the tyre is doing 61.5mph

It needs to be changed to be the same as the other 3...

I'm sure its a simple mistake on the part of the Garage.

vansboy

Do make sure the tyres you end up with ARE the ones approriate for your model & engine size, detailed in your cars handbook.

If you don't, then your insurers will consider you to have 'modified' the vehicle & possinly up your premiums, or if you had a mis-hap, not cover you.

If you don't have the handbook, www.kwikfit.co.uk lets you confirm what should be fitted, by clikin' a couple of boxes.

& it seems strange the MoT tester didn't notice this, as it is a test failure!!

VB

david29dpo

are the different size tyres on the drive axle? if so get them changed quick. it has been known for the differential to wear out in less then 200 miles!

Conor_3

Not for a difference in width.

david29dpo

a difference in width with the same aspect ratio will mean a difference in overall diameter.

beckiem

its ok to have two 165 at the back but just one thats dangerous get your chap to take it in i personally go my self my brothers a mechanic so i love seeing there face when i get to correct them its great fun!and check the tracking just in case