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View Full Version : to 235/85 or to 7.5R16? 31.8 vs 30.9''



JamesH
22nd November 2005, 04:43 PM
According to the site that somebody gave me on the other thread (thanks for that) my full diameter for the XPCs Ive got now is 30.96 versus the 31.82 with the 235/85s

I have six XPCs and I'd have to replace them all but I'll ponder this having read the advice you've already given me.

What I was wondering is what tyres you Defender people had when you got your vehicles? Mine definitely came with 7.5R16s as I have two of the originals as spares. I have read others say that their Defender has 235/85s.

At the moment I have a speedo reading +6%. I am thinking that if I go the larger tyre it might improve the accuracy (I'm more interested in odometer accuracy than anything else). With the larger diameter would I really notice any difference in performance (bit slower off the mark yet lower revs at cruising)?

cheers

J

seqfisho
22nd November 2005, 04:48 PM
Hi James,

I posted a link on the other thread but the differences in sizes on that link was only 1/10th of an inch in the diameter.

Try this link if you havent already

http://members.shaw.ca/jbarge/tires.html

George130
22nd November 2005, 08:45 PM
Mine came with 285/75 R16's
I'm fairly certain the speedo is out but not by much it seems.

abaddonxi
22nd November 2005, 09:43 PM
Hey James

GPS and a white permanent texta. sorts out the odo problem in about fifteen minutes of highway driving.

Cheers
Simon

JamesH
23rd November 2005, 11:43 AM
Thanks everyone for that information. My maths must have been wrong. Hardly suprising.