Tirerack experiences?

[brad]

Both 225/55 R16 and 225/50 R16 tyres can be fitted on 6.0" - 8.0" wheels.

Thanks
That'll learn me to just pull stuff out my khyber

[DoggieHowser]

Both 225/55 R16 and 225/50 R16 tyres can be fitted on 6.0" - 8.0" wheels.

According to
Tyre Calculator - Alloy Wheels - Specialist supplier of alloy wheels and tyres packages, Fast Delivery, Buy Online.

The recommended width of rims for 225 wide tires are up to 7.5"

One thing I have noticed is that it seems easier to kerb rims when the tires are on the narrow side of the allowed range.

[Diesel_vert]

According to
Tyre Calculator - Alloy Wheels - Specialist supplier of alloy wheels and tyres packages, Fast Delivery, Buy Online.

The recommended width of rims for 225 wide tires are up to 7.5"

Firstly, that website is just plain incorrect (ask any tyre manufacturer).

Secondly, it is also incorrect to state that "225 wide tyres are limited to 7.5" wheels" - you also need to specify the profile. For example, a 225/35 tyre can be fitted on 7.5" to 9.0" wheels.

[brad]

What diesel vert said.

You'd have to be a shocker of a parker to kerb 225/55x16 on 7.5" rims. Lord knows I've tried. The dam things are like ATV tyres.

[dylan8]

the rules of what can and cant fit on what width wheel also depends on each tyre...
really need to check with each manufacture and each model. iv put 225/40s legally on a 9 before, the next tyre may only go to a 8 or 8.5 due to its structure. tyre rack is good for looking as this as they list all the info in one place, saves ringing various places and getting told the wrong thing.

[Diesel_vert]

the rules of what can and cant fit on what width wheel also depends on each tyre...
really need to check with each manufacture and each model. iv put 225/40s legally on a 9 before, the next tyre may only go to a 8 or 8.5 due to its structure. tyre rack is good for looking as this as they list all the info in one place, saves ringing various places and getting told the wrong thing.

Any 225/40 tyre can be fitted on 7.5" to 9.0" wheels without problem, notwithstanding any clearance issues in regards to the car.

But whether a tyre can be physically seated on a wheel beyond the approved fitments is of course dependent of the tyre itself (which is what I think you're getting at).

[dylan8]

Any 225/40 tyre can be fitted on 7.5" to 9.0" wheels without problem, notwithstanding any clearance issues in regards to the car.

But whether a tyre can be physically seated on a wheel beyond the approved fitments is of course dependent of the tyre itself (which is what I think you're getting at).

nar just mean some tyres (like slicks for an extreme example) tend to have a narrower range of widths they can legally be fitted too (cant go too skinny or wide).
as in each brand/model/version is different too the next, so there isnt a rule of "a 205/55/16 will fit xx" - xx" range wheel", each tyre needs to be checked

[Diesel_vert]

nar just mean some tyres (like slicks for an extreme example) tend to have a narrower range of widths they can legally be fitted too (cant go too skinny or wide).

Well, racing tyres are a whole different ballgame so I won't go there.

as in each brand/model/version is different too the next, so there isnt a rule of "a 205/55/16 will fit xx" - xx" range wheel", each tyre needs to be checked

Tyre dimensions have been broadly standardised by the various tyre and rim associations in each region: ETRTO (Europe), TRA (U.S.), JATMA (Japan), TRAA (Australia) and others.

I would expect something as fundamental as tyre dimensions and allowable wheel fitments regarding passenger car tyres to be mostly uniform.

Whether a tyre can be physically seated on a wheel, beyond those listed in their standards manual, is down to trial and error.

[brad]

Tyre dimensions have been broadly standardised by the various tyre and rim associations in each region: ETRTO (Europe), TRA (U.S.), JATMA (Japan), TRAA (Australia) and others.

I would expect something as fundamental as tyre dimensions and allowable wheel fitments regarding passenger car tyres to be mostly uniform.

Whether a tyre can be physically seated on a wheel, beyond those listed in their standards manual, is down to trial and error.

Dylan8 is right. 99% of tyres will have the same recomended rim ranges but every now & then you'll get an odd-bod that is half an inch either way.
This is because some manufacturers cheat in how they make a tyre (usually a low demand size). eg (plucks sizes out of air): to make a low demand 245/40x17 they might use the case of a 235/40x17 case & build it in such a way that the dimensions just slip into the size range allowable for a 245/40x17. I've seen the same "size" tyre from different manufacturers vary in both width & diameter by a visually noticeable amount (up to 25mm) & that's disregarding the optical illusion you get when the shoulder blocks are rounded rather than squared off.

It was also obvious when fitting the tyre. Some brands the bead would self seal with a quick blast through the valve; others needed a lubed-up rubber spacer inserted to take up the gap or an air blast ring

Very rare but it did happen.

[yowie]

Yowie, why do u say that as if u doubt it. Tirerack has been used by many Australians and the overall majority have said its half price with a week shipping.
I'm buying again, Goodyear assymetric 2 in 18", $1200 delivered, that's the cost of 2 tyres here

Hey Deisel_vert , I dont doubt the great shelf prices.
I was merely reflecting that I, as a digital immigrant, am going in totally blind, buying based on what I have read here trusting that Tire Rack will perform in terms of delivery and service. Thansk for the advice on rim sizes, TDI Pacific i thought runs 7's, I dont have it here at the moment. Hopefully the 225/50's are going straight on and not adding to any gutter rash risk, good point!
I will let you know how it runs.

[brad]

6.5s on the Pacific when I was shopping for one.

The tyres will fit fine. A bit balloony but they'll fill the guards a fraction more & take some of the error out of your speedo. Probably a good idea to double check indicated against actual speeds with a GPS to work out what your new margin for error is.

Nice tyres, lucky you.

[Diesel_vert]

Dylan8 is right. 99% of tyres will have the same recommended rim ranges but every now & then you'll get an odd-bod that is half an inch either way.
This is because some manufacturers cheat in how they make a tyre (usually a low demand size). eg (plucks sizes out of air): to make a low demand 245/40x17 they might use the case of a 235/40x17 case & build it in such a way that the dimensions just slip into the size range allowable for a 245/40x17. I've seen the same "size" tyre from different manufacturers vary in both width & diameter by a visually noticeable amount (up to 25mm) & that's disregarding the optical illusion you get when the shoulder blocks are rounded rather than squared off.

It was also obvious when fitting the tyre. Some brands the bead would self seal with a quick blast through the valve; others needed a lubed-up rubber spacer inserted to take up the gap or an air blast ring

Very rare but it did happen.

Fair enough. Practical experience 1, standards manual 0.

[gareth_oau]

I can't imagine that there would be too much variation within decent manfacturers's tolerance.


With all the fines for speeding etc then tyre manufacturers wouldnt want to be sued for creating a legal loophole where someone unwittingly sped because their tyre had a different measurement to specifications indicated

[Diesel_vert]

According to Yokohama, 'the overall diameter of a radial is determined by its belts, so the tyre's overall diameter should remain virtually unchanged'.

So although a tyre's width and aspect ratio changes with different wheel widths, it's diameter should remain relatively constant.

[gareth_oau]

new tyres include at least 10mm of tread depth, so the difference between a new and old tyre might be over 20mm in overall diameter