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Alloy and tyre size difference

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Old 08 September 2012, 10:11 AM
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JamesRochester
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Default Alloy and tyre size difference

Set of 18in rota's fronts 8J wide and rear 9 will this screw up my 4wd system in anyway
cheers
Old 08 September 2012, 09:15 PM
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jura11
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Hi there

If you will keep same tyre size,you should be OK,but I would speak here with Mags@RTS he is Rota dealer and knows stuff about the alloys and tyres


Jura
Old 09 September 2012, 10:00 AM
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JamesRochester
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His userames not working mate tryed to pm
Old 10 September 2012, 01:18 AM
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daijones
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You want the same diameter on the front and back, so if you're planning on using wider tyres on the back you'd want them to have a lower profile to compensate, the maths could be tricky.
Old 10 September 2012, 01:52 AM
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Originally Posted by JamesRochester
His userames not working mate tryed to pm

Here is his user profile

https://www.scoobynet.com/member.php?u=35589

and here is his Rota thread

https://www.scoobynet.com/819486-rot...l#post10783878

Hope this help there


Jura
Old 10 September 2012, 09:27 PM
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JamesRochester
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Cheers guys
Old 12 September 2012, 09:57 AM
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Originally Posted by daijones
You want the same diameter on the front and back, so if you're planning on using wider tyres on the back you'd want them to have a lower profile to compensate, the maths could be tricky.
Exactly as Dai says. The rolling circumference of the front and rear tyres must be within a tight tolerance or the centre diff will wind up and break.

There is an amount of tolerance, because if you have new tyres on one end and the opposite end with just about a millimetre of tread left [ same size of course ] you get away with it.

But I'd be very careful as centre diffs are quite expensive to replace.

David APi
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