Thread: Another tyre question !

Originally Posted by Sith

Running 255x85 against the 235 or 7.50 , corrects the speedo .. I understand.
How much economy do you lose going to a 255 from a 2235/7.50 ?
I get about 660km to a tank now.

You will raise your gearing so you will be doing less revs for any given speed (10% less), however, the greater contact patch of the larger tyre will create more rolling resistance. Also, you will have to use more accelerator to get off the line due to the higher gearing, both of which would use more fuel, ergo, any fuel saving will be minimal (maybe 5% better if you are cautious with the right foot).

Originally Posted by matthew2

HI GUYS !
Its time for me to put new rubber on my Defer ! At the moment I have got 7.50-16 tyre on it and I want to up grade rims and tires . The rims will be 7x16 black sunrasia and the tyre will be maybe 235/85/16 , 245/75/16 or 265/75/16 . Which one of those tyre sizes is best for the Defer which wont rub while turning or touch anything under the guard and break something because of its size . Also my Defer has a small lift and I tour a lot .

Hi Matthew

I highly recommend BF Goodrich Mud Terrains
Super quiet on the blacktop.
255/85/R16
Awesome grip.
I've been told to offset my steelies to accomodate them as they apparently rub on the rear spring towers.
I haven't bothered and they appear to be fine.
I also have a mild lift only 1.5 inch.
They don't rub anywhere at the front either.
They are also a true 33 inch tyre and will give you an accurate speedo reading.
They won't have any adverse affect on drivetrain either.

Excellent tyres.
Just bought my set a couple of weeks ago.
Shopped around and picked them up for $335 each which I reckon is a pretty good price.

If you are after a set of 235/85/16 I have a full set on original boost alloys on ebay at the momment. Tread is still really good as I rarely used them on account of having the muddies on all the time.
Taking up space at home so I want to offload them.

Noogie

Originally Posted by noogie

Hi Matthew

I highly recommend BF Goodrich Mud Terrains
Super quiet on the blacktop.
255/85/R16
Awesome grip.
I've been told to offset my steelies to accomodate them as they apparently rub on the rear spring towers.
I haven't bothered and they appear to be fine.
I also have a mild lift only 1.5 inch.
They don't rub anywhere at the front either.
They are also a true 33 inch tyre and will give you an accurate speedo reading.
They won't have any adverse affect on drivetrain either.

Excellent tyres.
Just bought my set a couple of weeks ago.
Shopped around and picked them up for $335 each which I reckon is a pretty good price.

Noogie

X2

I run 235/85/16 General Grabbers on Boost alloys on the road.

Off road I run 255/85/16's BF Muddies (KM2's) on Dynamic 'D' shape steel rims, Excellent tyres on the road and off.As has been said 255's correct your speedo, are not too wide too efect your fuel or gearing and they give you a nice little lift if no lift fitted as thay are a 33.

The Dynamics have been good (they look like a Sunraysia, but have D shapes instead) and have a 1400kg rating, they are approx $100 new each.

Col.

of course there is the issue that if you run tubeless tyres on a tube rim and something goes wrong, resulting in an accident, your beloved insurance company may have grounds to void your insurance claim.
I have modified steel disco rims on my 110 with BFG 265/75 muddies. I went to these after my usual 255/85 were difficult to get in the time frame i had before a trip in 2010.
the tyre diameter went from roughly 33 in to 32 in. as stated before, with the 255/85s, my speedo was spot on, with the 265/75s, my speedo reads about 5km/h over at 100km/h - but most of the time I drive with the speed displayed in big black numbers on my GPS, so it's not an issue.
a 20-30 mm offset on a standard disco rim will allow full suspension travel on full lock without any tyre rubbing with 33s on.

I just got 255/85 maxis bighorns on 7 inch king wheels ( look like sunrasias) and am loving them. Big improvement on 235s, in saying that if your doing a lot of touring around the country you may be better not to go for 255s as they are not a common size.

Originally Posted by barney

of course there is the issue that if you run tubeless tyres on a tube rim and something goes wrong, resulting in an accident, your beloved insurance company may have grounds to void your insurance claim.

Would you not have the same issue with wheels that have been modified from standard, like offset changed etc...?

I have standard 130 rims (stamped tubed) but every time I take one for a repair the tyre shops tell me to get rid of the tubes. I cant because there are so many holes in the current cases! When I get new rubber I'll be mounting them tubless, as advised by multiple tyre fitting companies.

I've ran tubeless tyres on LR tubed rims for 15 years and have never had an issue,if the tyre goes flat it'll peal off the rim regardless on wether it's tubed or tubeless. Pat

I've just purchased 235/85 x 16 "General Grabber AT2" tyres and put them on wolf rims with tubes.
I was told that they are better than the BF Goodrich AT's as they are american and the BF's are now indonesian

However, they've transformed the ride and handling and I'm pleased with them, although I preferred the look of the BF Goodrich tyres.