33" 35" tyres - why?

[Ben-e-boy]

33" or 35" is imperial measurement and 265/70 is metric measurment but they still use imperial rim measurement

[katwoman]

Also remember snicko your speedo will get thrown out with larger tyres ( not that there accurate anyway! ) but something 2 be aware of

When I had 31 road tyres my speedo was 8 k's out. Now I've got 33 A/T's, the speedo is bang on.

[Bigrig]

When I had 31 road tyres my speedo was 8 k's out. Now I've got 33 A/T's, the speedo is bang on.

It was out before then and the new tyres have corrected it - the bigger you go, generally the greater the understate of speed (that is, your speedo is showing 100, but with 33's it'll actually be something like 104 you're doing, fit 35's and it'll actually be 108 or more that you're doing).

[AB]

I was 1km out of Bobs GPS on 31"s and with 33"s I'm out about 4km like you said above.

[Bigrig]

Don't forget, the laws changed a while ago overseas and not that long ago here [but we get overseas made vehicles], that all manufacturers had to drop the + or - a certain % rule on the speedo, and ALL vehicles MUST overstate your speed now - that is, speedo shows 100, but you're only doing 96 or something but always less than the stated speed on the guage ... putting 33's on any vehicle manufactured after when this occurred would simply make it run fairly correct ... back to the footy ...

[Warnie]

Any time snicko, glad we could be of assistance

[TuffTD42]

I have heard quite a few stories where some GQ's speedo 's were out with 31's then reading correct with 33's. It is possible that the previous owner had changed the speedo pinion to correct speedo with 33's or 35's?

[MudRunnerTD]

OK why do people put 33's or 35's (tyres) on their rigs??

Hi Snicko,

Given that this is your daily driver and you will spend allot of time on the bitumen between trips i would be thinking about sticking with your HWY Terrain tyres on the 17s in a 265 which will be good for 100,000ks and you will get good quiet comfortable commuting, good fuel economy, your speedo will be accurate (as good as it is from factory anyways). there are people stripping off the factory tyres all the time and you will likely get a good set with 90+% for a bargain on the net when you need your next set.

Setting the rig up to do the Canning, Cape York, Kimberly, The Simpson, The High Country and any other dirt track I can find so I think I have a problem as no set up is going to do it all.

I need to find a happy medium!

For the kind of touring you are thinking about i would be SERIOUSLY thinking about changing down to a 16inch rim and running 285/75-16s in an aggressive AT or Mud terrain tyre.

There is a few reasons why this is a good idea.

1. 16 inch tyres are cheaper!
2. in the outback if you shred a tyre a 16 will be much much easier to come by and be a fair bit cheaper to replace up behind burke somewhere
3. If traveling with a camper trailer make sure you fit the same wheels and tyres to it for matched sets and more spare tyres.
4. If you are travelling with friends and theirs is an older vehicle it will likely have 16s ...More spares if necessary....You never know.
5. 16 inch rims are cheaper
6. If you bend a steel rim you can panel beat it if you need to in the desert.
7. Leaving your nice shiny Alloys at home will mean they will always be nice and shiny and not get all scratch up in the outback or up the Cape
8. did i mention that the tyres are cheaper and much easier to get?
9. Buy the 16s and dont waste them getting to work, they are your holiday tyre and as such will likely see you out for 5+ years of touring and the cost offset over that time frame will be negligible.

I run 16 in rims and 285/75-16 Khumo KL71s on my GU IV for touring and they are the bomb!

Hope that gives you something to think about.

Cheers MR

[snicko]

Thanks mate..yeah food for thought (This is'nt the weight thread!!)

Last year I bought a set of (5) Alloys on Trading post so the camper and 4bee have the same rims =10 Genuine Rims!! Got them for $350 each - 6 on the rig, 3 on the camper one spare. Took 18 months of looking!!!!!!!!! Payed off though.

Any particular type of steel rim - genuine or other brand your recomend so I can start looking again?

[growler2058]

Thanks mate..yeah food for thought (This is'nt the weight thread!!)

Last year I bought a set of (5) Alloys on Trading post so the camper and 4bee have the same rims =10 Genuine Rims!! Got them for $350 each - 6 on the rig, 3 on the camper one spare. Took 18 months of looking!!!!!!!!! Payed off though.

Any particular type of steel rim - genuine or other brand your recomend so I can start looking again?

The standard old sunraysia is a cheap, but good steelie i got brand new in 15" for i think was $77 each from a tyre joint cant go wrong for that coin!!