Mud-club

Vehicle & Technical => Discovery => Topic started by: bigwood on April 20, 2008, 18:56:12

Title: Another tyre saga
Post by: bigwood on April 20, 2008, 18:56:12
Bought my Disco in December with two 205/70/16 Goodyear wranglers on the back. One odd worn tyre offside front, one new all terrain 205/70/16 nearside front. For my last outing I swapped the goodyears to the front and thought the odd tyre looked bigger than the rest. Bugged by this I took this one back off this morning to find the size. It is 205/80/16. I haven't noticed any problems so far and I don't really want to buy tyres just yet. Bye the way the spare is a just legal road tyre. I have only had dealings with series Landy before, am I heading for problems running this as it is for now. 235/70/16 will going on for the test in November hopefully. :-k
Title: Re: Another tyre saga
Post by: beast5680 on April 20, 2008, 19:10:19
i could be wrong but i,m sure different size tyres are illegal to run on the same car when they should all be the same :?
Title: Re: Another tyre saga
Post by: lee celtic on April 20, 2008, 19:12:02
I'd say they all need to be the same diameter so invest in a single tyre to match , part worn cheap off eBay ;)
Title: Re: Another tyre saga
Post by: bigwood on April 20, 2008, 19:34:10
I know about the legal side of the tyre size .I was more concerned with the damage it would cause to the running gear. 8-[
Title: Re: Another tyre saga
Post by: mentalmoshio sophs V8i on April 20, 2008, 20:46:23
205/70/16 they must only have been 25 inchs tall. standard disco tyres should 205r 16 ,225/75/16 , 235/70/ 16 , 255/65/16.

id go for wider tyres there alot more balance on the road.
Title: Re: Another tyre saga
Post by: lee celtic on April 20, 2008, 21:09:34
I recon there would be an effect on the diffs as it would be like turning all the time even when going straight .

the amount of wear would be dependant on the difference in size but I would say the difference in size would effect the handling more and I would think in the case of an accident the insurance guys would use it as a reason to not pay out.
Title: Re: Another tyre saga
Post by: badboy on April 20, 2008, 22:04:22
Hi right firstly you can run diferent tread/ size tyres provided they are the same on each axle, but it WILL damage your diffs.
Cheers
Mark
Title: Re: Another tyre saga
Post by: 4 landies on April 20, 2008, 22:07:42
 surely it will only damage the diffs if diff lock is engaged
Title: Re: Another tyre saga
Post by: Range Rover Blues on April 21, 2008, 00:27:19
The diffs are always running and are designed to, it won't cause a massive prblem with a Disco but don't do it on a RRC.

It's illegal to run wider tyres at the front than the back, and IIRC illegal to run differen size tyres accross and axle, whether that's width or height too I don't know.

Buy one to make the ste up for now, or buy some S/H 205s, they are dirt cheap as no-one wants them.
Title: Re: Another tyre saga
Post by: Steve ray on April 21, 2008, 06:54:20
The diffs are always running and are designed to, it won't cause a massive prblem with a Disco but don't do it on a RRC.

It's illegal to run wider tyres at the front than the back, and IIRC illegal to run differen size tyres accross and axle, whether that's width or height too I don't know.

Buy one to make the ste up for now, or buy some S/H 205s, they are dirt cheap as no-one wants them.

Would think the rolling diameters need to be the same, but not the width - space saver tyres or spares that aren't "full size"
Title: Re: Another tyre saga
Post by: Wireless on April 21, 2008, 17:09:12
Space saver tyres aren't that safe, that's why they are limited to 30mph.
Title: Re: Another tyre saga
Post by: Range Rover Blues on April 21, 2008, 18:47:28
Width affects the grip, you should have more at the back than the front
Title: Re: Another tyre saga
Post by: bigwood on April 22, 2008, 10:03:58
Ok I think this little off moment of mine has been resolved . :oops: I have found the tyre marking on my tyres and all is well. As I said I am going for 235/ 70 16,s later this year once I have the Goodyears down a bit more. I think my next appointment will be specsavers  :-'
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