RoverLord
Compared to 7.50s, the 235s are modestly larger in diameter, and will increase the reading on the speedo by a couple of percent, so you may find yourself a little over on speed limits - if the speedo is that accurate anyway. There will also be a slight reduction in acceleration and top speed, with earlier downchanges needed on hills. The increase in diameter means an increase in off road ability, the result of increased ground clearance, but a decrease in on road stability due to the higher centre of gravity, but both effects will be slight.
The width is about 25% greater, and everything else being equal, will result in noticeably heavier steering at parking speeds, possibly higher fuel consumption, and increased wear and tear on steering and wheel bearing components, although this effect is probably not noticeable. (Despite the fact that the vehicle's original design called for 6.00x16 tyres!)
Most of these effects of this relatively modest change in tyre size are no greater than the ones you can see from changes between different types of tyre of the same size.
Another point worth mentioning is that the Series Landrovers were designed for crossply tyres. Radials only became an option with the Series 2, and I don't think they were ever standard on any Series Landrovers. However, having tried both, I have run radials on all my Series Landrovers when available since 1966, and would not recommend crossplies, despite the fact that they are definitely more resistant to damage off road.
I have had no problem getting 7.50 tyres, most recently a couple of months ago, although probably less choice if you are in the city.
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
ChatterBox
This is what I am running on my Mitsubishi Challenger ( 31x10.5x15 )
I have had them on for just over 5,ooo klms and find them, to work really well in wet or dry condition. No wear as yet, and I find them great off road.
At $150 a corner work out a good price.
$160 for the 235x85x16, but have just seen they do a 215x85x16's.
Ovation Tyres VI-186AT
whitehillbillies
Fossicker
I had 7.50/16 and installed 235/85/16 mud terrain from BF Goodrich.
Nothing really changes....they actually made the car going a bit faster!
Master
G'day Andrea II 88,
Did you put the 235/85 R16 MT's on the same rims as the 7.50r16's?
Thanks
Nathan.
ChatterBox
I had 31x10.5r15's and 32x11.5r15's on my 109. Just as a comparison (because I know that you have different rims) the 32's are very close to the height of a 235x85r16, I found that I liked the 32's heaps better, smoother ride, calmer - engine didn't rev quite so hard and felt a bit nicer, but they were heavy to steer. I would think that 235's would be much better.
Never driven on 7.5's so can't comment on those....
Hope this helps you out a bit....
Master
I'm thinking of keeping the 235x85r16's but, I need to find another rim for a spare so I'm hoping that maybe I can squeeze it onto to the 7.50r16 rim.
Nathan.
ChatterBox
I got a set of 255x85's on 7.5 rims... tyre joint did it... shouldn't be a problem
Master
Thanks Debruiser, that's great news to hear.
Nathan.
my bad
Last edited by Marty90; 7th September 2015 at 05:23 PM. Reason: posted in wrong thread
Fossicker
Originally Posted by SG1 Bones
Hi Nathan,
Yes I kept the original rims... running tubeless... for the speed we go to there is no problem at all.
Plus the BF Goodrich Mud KM2 are a pretty tight fit... you may only want to change the valve for the air to probably a truck size one..
Tempe Tyres has done everything for me.
Andrea
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