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View Full Version : 33" tyres on 15" rims



gqpew
14th January 2012, 10:33 PM
Currently I have 31" tyres on 15" rims. Would it be okay to have 33" tyres on 15" rims or would it be better to go 33" tyres on 16" rims?

Cheers

BearGUST
14th January 2012, 10:35 PM
No probs on 15's, I've seen 37's on 15's.


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Bigrig
14th January 2012, 10:44 PM
I have 33's on 15's mate - Dhuck has 35's!! No drama whatsoever ... there are pros and cons of smaller and bigger diameter (as well as width), but no drama in putting 33's on a 15" rim mate

Clunk
14th January 2012, 11:10 PM
From what I've been told by the guys I got my 33s from, you'll need to get a 15x8 rims if you've only got 15x7's....... But yes as the guys have already said .... All good

Warnie
15th January 2012, 04:25 AM
Not if they are 10.5 inch tyres though clunk. The equation is complicated and has many differences.

General rules -

Around standard height tyre the height shouldn't really matter to what width rim the tyre goes on, the width of the tyre should be the only thing that really matters.
(31/32/33) x (10.5) R (15 or 16) on a 7 inch rim
(31/32/33) x (11.5) R (15 or 16) on a 7 or 8 inch rim
(31/32/33) x (12.5) R (15 or 16) on a 8 inch rim

I would only think about 10 inch rims if you are running something really wide, like a 13.5 or a 15.5 inch wide tyre, but I doubt you will as these will stick a mile outside the guards.

The other thing you need to think about is the offset of the rims. On a GQ with standard zero mm offset 33 inch tyres will scrub on the inside of the guards effectively stopping your car at full flex. To accommodate this a -24mm or similar offset on an 8 inch rim or a -13mm offset on a 7 inch rim is required to stop this happening. This will move the tyre further out in the guards.

growler2058
15th January 2012, 06:28 AM
I've got 33's on 15" rims no worries

matus368
29th February 2012, 06:33 AM
my friend also got the same combinnation and no problem

aaron
5th March 2012, 09:15 PM
yer will be fine ...... i run 33'' micky claws on a 16'' rim but that's just me tho lol

Boofa
22nd March 2012, 08:32 PM
works fine, made to suit

Lancec2626
28th March 2012, 12:24 AM
Not if they are 10.5 inch tyres though clunk. The equation is complicated and has many differences.

General rules -

Around standard height tyre the height shouldn't really matter to what width rim the tyre goes on, the width of the tyre should be the only thing that really matters.
(31/32/33) x (10.5) R (15 or 16) on a 7 inch rim
(31/32/33) x (11.5) R (15 or 16) on a 7 or 8 inch rim
(31/32/33) x (12.5) R (15 or 16) on a 8 inch rim

I would only think about 10 inch rims if you are running something really wide, like a 13.5 or a 15.5 inch wide tyre, but I doubt you will as these will stick a mile outside the guards.

The other thing you need to think about is the offset of the rims. On a GQ with standard zero mm offset 33 inch tyres will scrub on the inside of the guards effectively stopping your car at full flex. To accommodate this a -24mm or similar offset on an 8 inch rim or a -13mm offset on a 7 inch rim is required to stop this happening. This will move the tyre further out in the guards.

HI.

Is this the same principle if i have a lift????? IE 2-2.5 inch????

Lancec2626
28th March 2012, 12:26 AM
HI.

Is this the same principle if i have a lift????? IE 2-2.5 inch????

Clunk
28th March 2012, 12:34 AM
HI.

Is this the same principle if i have a lift????? IE 2-2.5 inch????

Be patient mate, im sure someone who knows will be able to give you an answer soon but in the meantime pop over to the intros section,start up a thread and tell us a bit about yourself and your rig........

Warnie
28th March 2012, 12:57 PM
HI.

Is this the same principle if i have a lift????? IE 2-2.5 inch????

Yes it is the same with a lift. The lift if suspension only will only increase the ride height of the vehicle and therefore the amount of suspension travel. At full flex you tyre will still reach the same point regardless of the lift fitted. So a suspension lift does not do anything for being able to fit tyres. Lifting the body, reducing up-travel or removing panels is the only way to fit tyres that do no fit.

Hope that helps, Adam

Kelvinator
31st March 2012, 10:53 PM
warnie, i dont understand your logic there mate. A bigger lift certainly helps to fit taller tyres. For example a 35 on stock lift will give very little clearance and almost no flex and more than likely wont fit, whereas a 4 inch lift will give tonnes of travel before contacting the inner guard. If you want an example check out my pics and you will see the limited travel i had at 2 inch lift compared to the four where i can sit inside the wheel arc at full flex and am now lookin to upgrade to 35s.

And to answer your question mate 15 inch rims are what Ive always run with 31s to 37s x 12.5. The only downfall ive had with 16 inch rims is that it can increase the price of tyres being as its a less common combo for muddies etc making production less cost effective.