Rim size/Tire size

[JHarris1385]

Honestly it would be a lot easier if you post links of desired tires and rims, and we can tell how they will fit if they do. Trust me I just went through the whole ordeal of ordering aftermarket rims and tires a month ago.

I have a lift with
16x8 pro-comp wheels with 4.5 backspacing
and 265-75-16 A/T tires.

before the lift I had 20x9
and 265/50R20

[Dumke]

Honestly it would be a lot easier if you post links of desired tires and rims, and we can tell how they will fit if they do. Trust me I just went through the whole ordeal of ordering aftermarket rims and tires a month ago.

Ok here it is rims are::http://www.americanracing.com/wheels...oy&section=ORT

the tire size I guess doest matter too much was going to do tghe wider ones I think 285 or something but that is combo.


tires are: http://www.nittotire.com/tires_terragrappler.asp

I have a lift with
16x8 pro-comp wheels with 4.5 backspacing
and 265-75-16 A/T tires.

before the lift I had 20x9
and 265/50R20

Ok also answer is there a reason why when u do lift you put smaller rims on? I have seen alot do it just wondering why it is done. Why I ask is because I dont have lift yet wondering if need to wait till lift to buy rims or can I use the ones that I am buying now?


edit::: also what is backspacing? I get offset after reading but cant find out what backspacing is.

[JHarris1385]

Those rims would fit, get the non-gm ones if you do. The 4.5 backspacing will not stick out like most will say. For reference look at my gallery I have 4.5 backspacing pro-comps. Or reference nfpgasmask's gallery for AR's with 4.5 backspacing as well. But remember he does NOT have 285 tires on. If I remember correctly he has 245's. I have 265's

To mess around your self with tire size combos. Go to http://www.discounttire.com/dtcs/infoTireMath.dos.

285-55/18 would fit without a lift, with little cladding trimming in the front. (not noticible)


I put smaller rims on after my lift so I could get more rubber. Less rim = more room for rubber and sidewall.

For instance overall diameter of tire before the lift was
265-50/20 = 30.5
after
265-75/16 = 31.7

My current set up did not need a lift to fit the tires in the back but with the 4.5 backspacing the front tires when turned at full extension would rub the back of the front wheel well midly. This can be altered with a little pounding of metal to fit with out a lift though.

Hope that helps.

[Dumke]

Hope that helps.

OMG yes yes it does ty for the help. I been scratching my head thinking and rereading different post to make heads or tail of what is what. So backside and offset same thing? From what I gathered or guessing.


Thanks again that did help.

[Ldub]

Ok also answer is there a reason why when u do lift you put smaller rims on? I have seen alot do it just wondering why it is done.

Most go with a taller sidewall profile (smaller rim diameter) & a little extra width (tire wider than rim) to protect the rim when off-roading.
Most of the time, when playing in the dirt/rocks, tires get aired down to lower pressure to increase traction by enlarging the "footprint".

[Kenny]

Most go with a taller sidewall profile (smaller rim diameter) & a little extra width (tire wider than rim) to protect the rim when off-roading.
Most of the time, when playing in the dirt/rocks, tires get aired down to lower pressure to increase traction by enlarging the "footprint".

I've also heard a rule of thumb for airing down/rock crawling etc... is rim diameter is no bigger than half the tire diameter... i.e. 16" rim with a 32" tire.

[etlsport]

I've also heard a rule of thumb for airing down/rock crawling etc... is rim diameter is no bigger than half the tire diameter... i.e. 16" rim with a 32" tire.

ok ldub.. time for 40" tires!!!

[Ldub]

ok ldub.. time for 40" tires!!!

UMMMMM...O K, I'll get right on it...is that OK with you Mr. Checkbook ?









Mr. Checkbook say: NO-WAY !

[Kenny]

UMMMMM...O K, I'll get right on it...is that OK with you Mr. Checkbook ?









Mr. Checkbook say: NO-WAY !

Since when do you listen to Mr. Checkbook??
He's crazy anyways for staying in your pocket.