4x4 tyres
Author
Discussion

JABB

Original Poster:

3,609 posts

263 months

Monday 27th August 2012
quotequote all
We have an old ML270 with 2 warn tyres. Is it ok to change just 2 for new ones? If so, where should they go front or back?

mat777

10,712 posts

187 months

Monday 27th August 2012
quotequote all
As long as like tyres are arranged in axle pairs (so worn ones on one axle, new ones on the other) itll be fine. Always put the more worn tyres on the front - its better to understeer slightly if you have to swerve suddenly in the wet than to swap ends! (As tested and concluded by 5th gear or Driven many years ago)

JABB

Original Poster:

3,609 posts

263 months

Tuesday 28th August 2012
quotequote all
Thanks Mat

HustleRussell

26,380 posts

187 months

Tuesday 28th August 2012
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mat777 said:
Always put the more worn tyres on the front - its better to understeer slightly if you have to swerve suddenly in the wet than to swap ends
I fear you've opened a can of worms there. For what it's worth, I agree with you...

Basil Brush

5,586 posts

290 months

Tuesday 28th August 2012
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Some perm 4x4 vehicles are sensitive to tread depth differences between wheels so maybe worth a quick check in your handbook?

mat777

10,712 posts

187 months

Tuesday 28th August 2012
quotequote all
Basil Brush said:
Some perm 4x4 vehicles are sensitive to tread depth differences between wheels so maybe worth a quick check in your handbook?
Most permanent 4x4's don't like a large difference in rotation speeds (ie different profile tyres front and back) but the minuscule difference that is a set of worn vs new road tyres shouldn't make any bother. If it was worn out vs new off road/mud tyres then it might be pronounced enough to affect it

Alex

9,978 posts

311 months

Tuesday 28th August 2012
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Our Jeep has road tyres fitted. I was thinking of replacing them with all-terrains. Are there any downsides when using all-terrains on tarmac (noise, wear, mpg etc.)?

HustleRussell

26,380 posts

187 months

Tuesday 28th August 2012
quotequote all
Alex said:
Our Jeep has road tyres fitted. I was thinking of replacing them with all-terrains. Are there any downsides when using all-terrains on tarmac (noise, wear, mpg etc.)?
yes, although that's a thread in itself really...

Alex

9,978 posts

311 months

Tuesday 28th August 2012
quotequote all
HustleRussell said:
yes, although that's a thread in itself really...
Indeed. Sorry for hijack; I'll start a new thread!

Caulkhead

4,938 posts

184 months

Tuesday 28th August 2012
quotequote all
mat777 said:
Always put the more worn tyres on the front - its better to understeer slightly if you have to swerve suddenly in the wet than to swap ends!
Not correct - always put the grippiest tyres on the rear, that isn't necessarily the new ones. If he's currently got nice sticky Goodyears or Contis on and he fits some cheaper tyres which grip less, they should go on the front. Grip isn't all about tread depth. I wouldn't fancy worn eagle F1's on the front and brand new ditchfinders on the rear of anything.


JABB

Original Poster:

3,609 posts

263 months

Tuesday 28th August 2012
quotequote all
On at the moment are Avon Ranger 55s

edc

9,567 posts

278 months

Tuesday 28th August 2012
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HustleRussell said:
Alex said:
Our Jeep has road tyres fitted. I was thinking of replacing them with all-terrains. Are there any downsides when using all-terrains on tarmac (noise, wear, mpg etc.)?
yes, although that's a thread in itself really...
Couldn't say I noticed any of those traits when using General Grabber AT2 on a P38 Range Rover.