# All terrain wheels and tyres on 2007 x250 (1 Viewer)

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#### bluesurf989

I fancy putting a set of all terrain tyres and wheels on our motorhome. Unsure of size and fitment as ive not researched it yet,just wondered if anybody had any experience in this and advice.
Many thanks

#### ChrisL

Not specific to an X250 but expect a rise in tyre noise and make sure whatever tyres you buy are rated for the vehicle weight, when doing that calculation remember you have 4 tyres sharing the load so divide your total weight by 4 and buy tyres that meet or exceed that figure. For example if your total vehicle weight is 3.5 tonnes each tyre would be required to cope with 875 Kgs so according to the linked chart you would need tyres rated at 103 or higher.

#### Bonkers the Dog

##### Free Member
Why? Are you going off-roading in your motorhome? I can see a few problems with that idea if it is the master plan....

#### ChrisL

I would say that if most of where you park is on fields it's a good idea, very often the difference between getting stuck and not is tread pattern.

#### Lenny HB

LIFE MEMBER
Not specific to an X250 but expect a rise in tyre noise and make sure whatever tyres you buy are rated for the vehicle weight, when doing that calculation remember you have 4 tyres sharing the load so divide your total weight by 4 and buy tyres that meet or exceed that figure. For example if your total vehicle weight is 3.5 tonnes each tyre would be required to cope with 875 Kgs so according to the linked chart you would need tyres rated at 103 or higher.
103 load rating would be far too low for the rear axle. For a light chassis with a 2000kg load rear axle you need a 109 rating tyre but if not using camping tyres (they have stronger side walls) it is best to increase the load rating by 10% so you will need 112 rating and likewise a 2500kg rear axle will need a 120 load rating.

Instead of fitting all terain tyres have you considered fitting winter tyres, they will give good grip on wet grass and you will be legal in Europe in the winter.

#### Bonkers the Dog

##### Free Member
Perhaps, but he mentioned all terrain, not just a more aggressive tread pattern, that's two different things entirely. As an ex off-roader I can tell you that buying and fitting an expensive set of off road tyres for a single purpose doesn't make economic or practical sense. How many times are you getting stuck?

Better off choosing your parking place with a bit of thought, if push comes to shove use mats. Plan your exit before you enter.

All terrain tyres are expensive, increase road noise, increase fuel consumption, reduce handling, increase mechanical stress, reduce braking distance and wear out quickly and require replacement more often. In some cases you may have to recalibrate your speedo and milometer and inform your insurance company as it might be classed as a 'modification' then there are warranty issues, liability issues, legal issues. It's not just a matter of slapping on a set of ruffty-tuffty tyres.

However, if you are set on the plan go to any tyre shop and they will see you right....for a fee!

#### ChrisL

103 load rating would be far too low for the rear axle. For a light chassis with a 2000kg load rear axle you need a 109 rating tyre but if not using camping tyres (they have stronger side walls) it is best to increase the load rating by 10% so you will need 112 rating and likewise a 2500kg rear axle will need a 120 load rating.

My apologies, you are quite correct Lenny my experience is from 4x4 cars where the difference between axle weights is not so great.

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#### bluesurf989

Thank you for the info. Really i just fancy something different,not seen on a moho before. The Hymer we have just brought has aftermarket 15" alloy wheels that im not keen on,i think it should of had at least 16"wheels!!

#### tacr2man

All terrain tyres are not really going to give you any real tractive advantage , particularly as you are unlikely to have diff lock .
If its traction you are after then carry a set of chains (not light) .
Doing it for cosmetic reasons will not really achieve anything as there is little room for going wider or taller .
Sounds like you should have bought one like this

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#### bluesurf989

The wheels seem to small, should our hymer have 16" wheels?

#### pappajohn

LIFE MEMBER
You may have a problem with front wheel arch clearance.
A true off road tyre stands quite a bit taller than a road tyre of the same size due to the much deeper tread.
The aspect ratio is the rim to sidewall shoulder depth, not the depth from rim to tread surface.
A new van tyre may have a 10mm tread depth whereas an off road tyre may have a 25mm tread depth... A difference of 15mm.
That may be enough to strike the wheel arch while turning on bumpy ground.

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#### bluesurf989

I dont think im going to go down the all terrain wheels and tyres but want to change the wheels. Im not sure if the moho is a maxi or light!!

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