Replacing front tyres with different specs

[Mtortise]

• Hi guys

 

I am currently using tyres 225/65/R18 and is planning to change the front two tyres soon. I called up one of those workshop and was recommended to change the front two tyres to 235/60/R18 instead. That would also mean a difference of $60 for two tyres.

 

My question is whether is this recommended? Will it hurt the car in anyway? 

 

Thank you.

[Detach8]

Looking at your tyre profile are you driving a SUV?

 

Is it a 4x4 or FWD/RWD?

 

Firstly, it is bad to have two different make of tyres front and rear as they have different grip and handling characteristics.

 

But if you are changing to the same brand n model, then you need to know if your car is a 2 wheel or 4 wheel drive. Never use different tyre sizes for a 4 wheel drive. You will damage your drivetrain.

[Mason016]

  On 11/5/2015 at 9:07 AM, Mtortise said:

Hi guys

 

I am currently using tyres 225/65/R18 and is planning to change the front two tyres soon. I called up one of those workshop and was recommended to change the front two tyres to 235/60/R18 instead. That would also mean a difference of $60 for two tyres.

 

My question is whether is this recommended? Will it hurt the car in anyway? 

 

Thank you.

 

I assume your rear tyres are 225/65/18? You will lose some sidewall if you change.  Secondly, please check your load index of your tyres.  Not wise if you change to a lower load index tyres. 

[Jtyres]

Even if you intent to change all four pieces together, it is recommended to stick to your original tyre size.

 

I PMed you on the choices available for 225/65 R18 Tyres. There is Premium - Michelin Tyres and Economical - Maxtrek tyres available.

 

  On 11/5/2015 at 9:07 AM, Mtortise said:

Hi guys

 

I am currently using tyres 225/65/R18 and is planning to change the front two tyres soon. I called up one of those workshop and was recommended to change the front two tyres to 235/60/R18 instead. That would also mean a difference of $60 for two tyres.

 

My question is whether is this recommended? Will it hurt the car in anyway? 

 

Thank you.

 

[Mtortise]

  On 11/5/2015 at 9:31 AM, Detach8 said:

Looking at your tyre profile are you driving a SUV?

 

Is it a 4x4 or FWD/RWD?

 

Firstly, it is bad to have two different make of tyres front and rear as they have different grip and handling characteristics.

 

But if you are changing to the same brand n model, then you need to know if your car is a 2 wheel or 4 wheel drive. Never use different tyre sizes for a 4 wheel drive. You will damage your drivetrain.

 

Thanks for the advise.

 

Yup, I am driving a Murano. 

  On 11/5/2015 at 9:56 AM, Mason016 said:

I assume your rear tyres are 225/65/18? You will lose some sidewall if you change.  Secondly, please check your load index of your tyres.  Not wise if you change to a lower load index tyres. 

 

Got it. Thank you!

[Detach8]

  On 11/6/2015 at 2:49 AM, Mtortise said:

Thanks for the advise.

 

Yup, I am driving a Murano. 

 

Murano should be FWD bah, so it is OK to have different tyre sizes but make sure same brand and make of the tyre.

 

But of course best is to change all 4.

[Spinelli_ck]

for a FWD car, is it recommended to put the newer pair of tyres at the rear? 

[Roberttan]

if your original factory fitted (recommended) size 225/65/18

I believe they are quite a few brand in the market.

So strongly believe getting the factory size if available.

mixing of 2 type (all 4 same size) is acceptable

mixing tyre size on all wheel drive vehicle is all along not recommended. but now saw  few car came factory fitted front and rear not same size on new car( may be now with new design)

[Shibadog]

  On 11/6/2015 at 5:00 AM, Spinelli_ck said:

for a FWD car, is it recommended to put the newer pair of tyres at the rear? 

 

 

yes.. bcos less weight at rear, and weight transfers to front during hard braking

[Detach8]

  On 11/6/2015 at 5:00 AM, Spinelli_ck said:

for a FWD car, is it recommended to put the newer pair of tyres at the rear? 

 

 

If you are concerned about tyre wear, then put new tyres in front since all the work is being done on the front wheels - acceleration, steering and braking.

 

But if you really are concerned about safety, place new tyres at the rear prevents your car from losing rear traction and spinning in the wet since new tyres have more thread depth.

  On 11/6/2015 at 7:26 AM, Roberttan said:

if your original factory fitted (recommended) size 225/65/18

I believe they are quite a few brand in the market.

So strongly believe getting the factory size if available.

mixing of 2 type (all 4 same size) is acceptable

mixing tyre size on all wheel drive vehicle is all along not recommended. but now saw  few car came factory fitted front and rear not same size on new car( may be now with new design)

 

Having a wider rear tyre is known as a staggered wheel setup and is commonly seen in RWD drive cars (BMW, Mercedes, Porsche, etc.)

 

Most FWD and AWD drive cars have a square setup, i.e. all 4 tyres are of the same size.

 

Mixing of 2 different brands is NOT acceptable. That is actually quite dangerous as every tyre handles differently. You won't know what will happen UNTIL you lose traction, and by the time that happens it's to late.

[t0y0ta]

  On 11/8/2015 at 12:26 PM, Detach8 said:

 

Mixing of 2 different brands is NOT acceptable. That is actually quite dangerous as every tyre handles differently. You won't know what will happen UNTIL you lose traction, and by the time that happens it's to late.

 

Actually in the long past days, my father always put new tyres into the rear and move existing rear tyres to front... and sometimes it is different brand/model. Usually the tyre shop will say as long as left and right is the same, front and back different brand, but still same size is ok.

 

But that was for B&B jap saloon, usually don't every go near the handling limits, so I guess will seldom kena problem.

 

My current ride is SUV, I will rotate front/back every 10k km and change all 4 together into original factory size and all 4 same brand - just to be safe.

[Detach8]

  On 11/8/2015 at 1:12 PM, t0y0ta said:

Actually in the long past days, my father always put new tyres into the rear and move existing rear tyres to front... and sometimes it is different brand/model. Usually the tyre shop will say as long as left and right is the same, front and back different brand, but still same size is ok.

 

But that was for B&B jap saloon, usually don't every go near the handling limits, so I guess will seldom kena problem.

 

My current ride is SUV, I will rotate front/back every 10k km and change all 4 together into original factory size and all 4 same brand - just to be safe.

 

Well most of us don't drive at the limits of our tyres anyway, but when time comes that require your tyres to perform at the limit, e.g. e-braking in wet weather while negotiating a bend, then it will be too late. I used to have "eco" tyres in my old car and it was quite a drastic difference in grip especially in wet, and the tyres lock up very easily when braking. Different brands may perform similarly in the dry, but between them they do perform very differently in wet -- how it grips, how it cuts water (aquaplan) and how it deforms under load. Of course, most of the time it will be fine... but try not to use two different brands if possible.

[Spinelli_ck]

guys, many thanks for your input. 

 

safely is of paramount importance, so the general understanding is the newer pair of tyres should be placed at the rear.

[13177]

Anyone know where can buy used car tyres which is in condition?

[Roberttan]

  On 12/9/2015 at 3:30 AM, 13177 said:

Anyone know where can buy used car tyres which is in condition?

try asking around , best go to your regular shop.

only beware is the re-cut tire ( I am total can not tolerate this kind of tyreshop selling this re cut tyre)

I cant imaging the tires are already worn down and cut deeper (this is already very thin up there)

is boil down to business ethic.

now aday Uber is so popular and some of this car is running on this re-cut tyre (hopefully LTA should step in for the safety of the Uber customersss

[Caldina]

  On 11/8/2015 at 1:12 PM, t0y0ta said:

Actually in the long past days, my father always put new tyres into the rear and move existing rear tyres to front... and sometimes it is different brand/model. Usually the tyre shop will say as long as left and right is the same, front and back different brand, but still same size is ok.

 

But that was for B&B jap saloon, usually don't every go near the handling limits, so I guess will seldom kena problem.

 

My current ride is SUV, I will rotate front/back every 10k km and change all 4 together into original factory size and all 4 same brand - just to be safe.

 

Always fit new tyres at the back

 

Recommended by major tyre manufacturers.

 

[Roberttan]

  On 11/9/2015 at 4:52 AM, Spinelli_ck said:

guys, many thanks for your input. 

 

safely is of paramount importance, so the general understanding is the newer pair of tyres should be placed at the rear.

well said, I supposed if the other old tires still have thick you should still able to place the 2 new in front

do remember , some car or case you may not allow to do so (2 new tire in front)

[13177]

  On 12/9/2015 at 4:06 AM, Roberttan said:

try asking around , best go to your regular shop.

only beware is the re-cut tire ( I am total can not tolerate this kind of tyreshop selling this re cut tyre)

I cant imaging the tires are already worn down and cut deeper (this is already very thin up there)

is boil down to business ethic.

now aday Uber is so popular and some of this car is running on this re-cut tyre (hopefully LTA should step in for the safety of the Uber customersss

How would you know whether the tyre is re-cut?