Cooper 255/85/R16 S/T's

I like to use more common sizes incase I need to get another in a hurry. Also I have the same size as friends incase we need to borrow a spare.

Leroy

Its not a real common size, so i wouldnt go it.

Apart from the 105 % overgearing plus higher rolling resistance which will slow the rig down a fair bit.

I went up 106% on the jackaroo and it made a big difference to the gearing, slowed it down heaps.

Personally i'd stick with the 265/75/16 you would be hard up not to be able to get one easily anywhere.

Hi Matt,

I looked at the Cooper 255/85R16 for my GU Patrol but eventually opted for the 285's. I wanted the ~33" size, a much better performer offroad IMHO, but didn't necessarily want the 285 width. My ideal tyre is a 10.5" (265 width) and 33" diameter, which as you have found you cannot get in 16" diameter. The 255 width looked a bit narrow for the Patrol hence why I went the 285. But I reckon they should be fine on a Paj.

As for keeping to 265/75 for spares compatability, while it is a valid argument, how many time have you actually had to do this. Also, if I was stuck, I would put a 285 tyre on a 265 shod vehicle or vice versa to get me going. Not ideal, but hey, better than being stuck.

I reckon choose the tyres you want for what you need, not for some small probability of needing to be compataible, who knows who you will be with when you need it.

Richards TyrePower in Osborne Park would have to rate at one of the best tyre shops in Perth IMHO. I have been using them for years and would recommend them to anyone. While they have arguably the best wheel balancing equipment in Perth, its there great after sales service that is icing on the cake (and No, I have no relationship with them other than being a satisfied customer).

Cheers

Captain

Matt,

I run this size tyre on a Tdi disco as my road/outback tyre. It is an excellent width to height ratio and fits within the guards well.
BFG also do this size in a mud terrain. I do find I use more fuel to push these tyres but for my use its worth it.
I have just returned from a simpson desert trip and found these tyres performed very well with only minor chipping.

Cheers

John D

Matt

I'm with all the other followers of Richards in Osb Pk!

Go have a look at www.1010tires.com - "tech" and then "tire size calculator". I've thrown your choices in there and by going the 255/85 you'll get a lift of 31mm (and thats also under the diffs!). You will get some 8% error in your speedo and same in gearing.

I went from a Coopers 235/70/16 AT (6" rims) to a Coopers 265/75/16 ATR LT (7" rims) on my Navara. 9% speedo error and change to gearing. Great tyres so far but early days! The speedo is now just about correct and reading 100kph when I'm doing 97.5kph on the GPS. Gearing - well, takes a bit more to get off from the lights but haven't yet gone out to get dirty in low. My therory was always a max 10% loss in gearing was acceptable to me and my use of the vehicle. When you're doing a decent at 5kph and the gearing changes that to 5.5kph, I really don't have a problem with that in my manual Navara!

Also look at the DPI web site on wheel/tyre mods - my interpretation is that in WA from memory and without an inspection;

1. Can't go over 7" rims
2. Tyre profile must be within guards/flares
3. Tyres must clear all body work under all driving conditions

Easy as that (will make the eastern states guys and gals throw up hey!).

Get in touch if you need some help!

Andy

No Problems Matt! Look forward to the new pics.

Look after those low down trailer electrics! I had ARB move mine into the rear bumper so it wouldn't get ripped off - they just drilled a hole and presto - out of the way for good!

Andy

Matt

You've obviously picked her up!

Parked on the verge of Richards when I went by an hour ago and now missing!

How does she run? Speedo error etc?

Andy

Well done Matt!

Hope you're happy with the new set-up!

Just got the Navara back from Giant's for the 15K service! I'm on the CSR in 4 weeks time so I went the 20K service that does a bit more! Ended up with a box of spares and the cost wasn't unbearable! (that's where I was heading when I saw your Paj at Richards yesterday!).

I have a good level of comfort now for our big trip - going cruise control on tuesday as i'll be doing some 4,000 ks on the black on my own.

Andy