Outer Limits 4x4 Board

does anyone know the original tyre size for the 97 SR5 hilux , i have been told that i can go 2 inchs larger in diametre to the original size

Should be a 205R16.....

Check the tyre placard which should be either on the inside of the glove box lid or somewhere on the door frame

yeah it is 205R16 but is it a 31 inch or something?

205R16 i think actually works out to be about 29 inch

Which makes it illegal but most(all) the lux's i see all have 31's including mine and i have never been questioned about em

aren't you a copper Barney?

you should know

255/70 15R - this is an oddball size works out to be about 29x10x15.
You could however buy this truck new with an "offroad" wheel pack giving you 31x10.5x15.

205R16 is specified to be an overall diametre of 747mm which is 29.88"

your allowed to go 1" bigger, and most 31's are actually closer to 30" in diametre which is why you can legally run 31's.

the 205R16LT actually has a section width of 203mm which when adding your allowable 50% increase with beam axles, means you can run 304.5mm wide tyres, or 12.18" wide tyres.

if you have IFS you can go 30% increase in tyre width to 10.56"

this is based on Queensland regulations and the Tyre and Rim Association Manual (2002)

255/70/R15 has a specified overall diametre of 739mm (29.56") which means you can run 765mm (30.6") tyres, again which most 31" tyres will actually measure.

255/70/R15 has a section width of 260mm (10.4") so you can go to a 390mm (15.6") wide tyre with beam axles, or with IFS you can go to 338mm (13.52").

I dont think ive ever heard of a 31x15.5 tyre before though lol

31x15.5 ???

De-lux wrote:aren't you a copper Barney?

you should know

Nah mate not me,

I do know a couple

so legally i cant run 33's, that sux ass

last time i looked in the dep.off trans they said 15mm bigger then not 1inch. lux can go 31 and cruisers only to 32 legal but i dont think to meny coppers worry about 10mm well ihope not.