Cooper Dicoverer ST on Series II Td5 Discovery

dolfn,
May i ask if you considered the Mickey Thomsom's AT's in the 4WD Monthly comparo?

I'm finding it hard to go past them, as the off road stats are great and the on road rating was better than the Coopers. I cant recall 100%, but i think the Mickey Thomsons were cheaper too.

jono.

Dolfn,

Fitted a set of ST's to my Disco 1 just before Xmas. I kept with the standard size 235/70 R16 as I had a new spare at this size. The Coopers seem to be a lower profile than my previous well worn michelins, I know this because I was concerned about the new tyres raising the vehicle as my carport clearance is around 2cm, well I was surprised and its actually dropped so the 255/70 should be ok. I have only covered 3000km and happy with the performance so far, a slight increase in road noise but hardly noticable in a TDI. These tyres seem to kick up less stones than the Michelins, but they do tend to trap small stones in the wider grooves between treads so you end up digging a few stones out after gravel roads.
Did a lot of research before buying and recieved mostly positive feedback. Don't think you will be disapointed.

Cheers

Dolfin,

The 255/70-16 is a 30" tyre, and so 1" over standard - It is also the ES standard width, and you won't have any troubles with rubs. Check out this excellent web page for tyres that fit the Disco2.
http://www.disco2.com/howto/offroader/tyresizes.phtml
With regards to the tyre selection, I would advise you not to use the Cooper ST on the Disco, and to go for some other type of tyre like the BFG AT.

The Cooper ST is a brilliant tyre on the road, and it is great for light off road work, its even good for the heavy stuff, but when wheels start to spin they also start ripping lugs out of the ST's very very quickly. Now where this relates to the Disco is in the way that the ETC works. The ETC requires wheelspin before braking that wheel to send power to the other wheels, and as long as that wheel is spinning, the lugs are going to get torn out. I currently have 255/85-16 Cooper ST's on my D2, and they are being changed under warranty to the Cooper STT's this weekend due to broken lugs. It seems the problem lies with the rubber compound and the sip design of the side lugs, and although no press releases have been made, Cooper is releasing a revised version of the ST and STT shortly.

Regards
Slunnie

PS. If you are interested in a Disco 2 specific forum, please come along to: http://groups.yahoo.com/group/AussieDiscoveryII

I have a mate who recently fitted 245/75/16 BFG AT, hasn't had any clearance problems despite standard suspension. Overall diameter is about 30.5". He also had a centre diff lock actuator fitted by ARB (around $800 I think) Because he was sick of being pulled out by Range Rovers. Has made a considerable improvement to his off road ability.

Does anyone know wheather this document

http://www.disco2.com/howto/offroader/tyresizes.phtml

also applies to the new Disco 2003 model

i don't know what state you are in but in qld you are able to go 25mm bigger in diameter.any larger than this and your vehicle will be illegal.your tyre store will be able to tell you if the tyres you choose are suitable.have you considered bridgestone 693 AT.excellent on and off road and cheaper than coopers and bfg's and performe just as well