After reading about Cadilake getting a blown tire. I think it was important to make this thread. For people with Rims or have knowledge please reply to make sure others do not get hurt.:canttalk:
How fast should you go with?
26's:
24's:
23's:
22's:
20's:
I have just 20" on my Escalade and tend to go about 85-90 as my top speeds. Let everyone else know what you do as your top speed and what is safe and what isn't.

I've got 20's and I've gone 110 without a problem. I don't do it very often though.

Let everyone else know what you do as your top speed and what is safe and what isn't.

the speed limit is safe...that is why the govt sets it as such....

you should be able to go what you're tires are rated at...this isn't "safe" by any means but is doable....hitting something in the road at 140 whether you have 22s or 26s isnt gonna matter you're gonna be fugged either way...but bottom line having big rims doesnt effect how fast one should travel...it just affects the distance you need to stop if you're wheels are heavier than stock and you havent upgraded your brakes...but to ask people what the safest you can drive with 20s, 22s, 23, 24, 26 is retarded...you should do the speed limit..anything over that is a gamble and it isnt gonna make a damn bit of difference whether you're rollin 20s or 26s...

I understand blingblingcvs point.

He is asking something reasonable.....

Once in a while we go faster than the speed limit (either because we are in a hurry or we just feel like driving our trucks and cars to the limit).

If you go faster than the speed limit with caution I dont see a problem....
As long as you are not racing in a neighborhood or a residential area.....

Now people with big aftermarket wheels have the right to hear from others their experience about speeding with big wheels..... and the risks involved.

Mejia

I was saying this because look at cadilake he was going 80mph. I really don't think there is a speed limit with 80 on it. He got his tire messed up. I see so many Escalades all day driving so fast but they are stock and I see all Escalades on rims going slow. Stop with these damn hate words of retarted. :nono: Everyone goes over the speed limit with caution. I think others with big wheels should know what the fastest for them to go is, if they decide to speed a little. Yes I know if you are going 140mph you are fu**ed. If I go 80 on 20s it seems perfect, yet I have driven 80 on 23s and it feels like it will flip.

Just as a reference , I know that uhaul pull trailers say dont go over 55. Those tires are small, a fraction of what 24's or 26's are. There are not going to break if you go over 55, but over long periods of time the tire is going to wear faster if you are going above there reccomendation. Just the faster you go the shorter time it takes for the tire to wear or split.

i've gone 120 on my 20's, and it felt just as stable as going 75, the way i look at it it's my driver's license and it's my truck, so why have all that power if your going to pu*syfoot it around? and not find out what it can do.

you should be able to go what you're tires are rated at...
nuf said. check the speed rating for your tires and keep them at recommended air pressure and you'll be just fine.

i've gone about 90 on my 20's and 40's.

the top ive hit with my 24s on pirellis was 100 but i just did that once to see how it felt ... steering wheel got pretty shaky but besides that nothing really felt different ... usually on the free ill do 75-80 doesnt feel any different at all ..... but on the street i just cruise usually lower then the speed limit so everyone sees me

I was on the interstate where the speed limit was 75mph. I had the cruise on about 80mph so wasn't exactly roddin' it. I have gone into 90's before as trial but ride got a little rougher. I have traveled on these tires and rims plenty before this trip with similar driving (usually 80-85, occ into low 90's) without a problem. With my stock 17s I went 110mph then felt like limiter kicked in.

I'm not even going to get in the debate about exceeding the speed limit etc ... come on, give me a break. Here's a deal: if anybody in this forum can convince me they haven't/don't sometime exceed the speed limit, I will post a picture of my bare ass or maybe you'd like my wife's titties. Staying home in bed, or walking is also "safe". Obviously, it is best to always be smart and cautious when driving.

Interesting point/question though bling.

Here is another issue that is not so clear. What is the optimal air pressure (psi) for these large rims and tires. What is listed on the tire? Max psi or what % of that max? My rims also have a max psi noted on them? How about the door listing, etc.
What are your thoughts on optimal pressure.

got 24's 305/35 and done 120 with them, i dual exhaust, intake, headers, and performance chip so hitting top speed isnt hard , just kinda scary....I usually do anywhere from 80-100 on the freeway depending on traffic, never had a problem...Oh and as for tire pressure i have 35 pounds in mine....I never listen to the max psi on the tires, thats just crap, the people who put my wheels on, put on 45-49 pounds of air in my tires, it road literally like crap....i thought i was gonna pop a tire the second i got on the road....i feel 35 is the best....its soft but not too soft.....

I think its pretty much safe to go as fast as you want with big rims since most tires have a very high rating for speed for example my Pirelli's on my 24" wheels with spinners are ZR rated which I think allows you to go up to around 175mph without the tire giving way. My lade & Denali still have limiters so of course I have never broke the 115mph barrier & I don't think too many full size SUV's can actually go fast enough to exceed these expensive tires ratings. I've topped it out for a good while with spinners and all and had no problem other than increased vibration through the steering wheel. As long as your tire pressure is right there shouldn't be a speed problem with the big rim tires just don't kill anyone.:o

Agree. Bottom line is the rating of the tire - they should withstand that if they are rated that. I'm sure they rate them considering their size.

I think you have a good point ALLeyez.

I am going to make a new post re: air pressure question.

I'm not even going to get in the debate about exceeding the speed limit etc ... come on, give me a break.

I was just using you as an example since you stated you were going 80 when you blew a tire. I go at least 70-75 on the highway. I just thought this was a good subject and people could tell us how fast they go on rims and what they thought. :yup:

To answer the original question (I think)

26's:=128.4
24's:=141.2
23's:=153.4
22's:=171.5
20's:=195.6

Please dont scream. I made these numbers up based on the force that the wheel observes due to the weight of the wheel and the diameter applied to the rotational force. These are in relation to the strength of the wheel lugnuts as they strip themselves right off the hub-

Fm = (1/(156.44)4 s4) ln² tA ln² tB

The distance factor does not apply to the space-time force as this force is omnipresent and unlike the rotational force is not altered as the objects to which it is applied change their relative positions. At the point of equilibrium, therefore, the rotational force is equal to the unit space-time force. Substituting unity for Fm in equation 6 and solving for the equilibrium distance, we obtain


so = (1/156.44) ln½ tA ln½ tB



I have 22" wheels and have no intention of going over 90 mph ( I just want to get to 90 faster than my M3). That being said at 90 it rides just fine, In fact It feels more stable at higher speeds with the larger wheels ie lane changes. I would rather have a blow out with 22" wheels more so than 17" due to the extra 2.5 inches of height I would have over the stock wheels for control. That equates to less force that would flip me over. I do not condone speeding and I feel that a 6000LB brickalade going 90mph is a bad choice for a racecar but then again I did buy an intercooled supercharger and dual exhaust.


Moral of story- Do whatever you want in your own escalade I really don't care how fast you drive, unless you crash into me or one of my family's vehicles. Then you have 2 options

1.Drive over yourself before I get there.
2.Have a uniformed officer quickly drive over you.

bling, I think this thread was a good one. I included that comment because it seemed like BogeyBoy was being a little too idealistic and not too realistic.

And thank you Professor RIescalade, very interesting.

To answer the original question (I think)

Fm = (1/(156.44)4 s4) ln² tA ln² tB

The distance factor does not apply to the space-time force as this force is omnipresent and unlike the rotational force is not altered as the objects to which it is applied change their relative positions. At the point of equilibrium, therefore, the rotational force is equal to the unit space-time force. Substituting unity for Fm in equation 6 and solving for the equilibrium distance, we obtain


so = (1/156.44) ln½ tA ln½ tB



:worship:

See someone is using their degree to do something useful, if only I could get something out of that 70 grand I spent.

Beyond that 24's :: 99 lade :: 110 mph and it felt good. :devil: Dont try this at home folks. But really I think my truck was more stable and steering got tighter. Better than my factory's if you ask me. But just my 2 brown boys.

Interesting comments.

Just so everyone understands, I work for a OE wheel manufacturer and am a member of the subcommittee in T&RA that oversees the pasenger car & light truck tire standards.

Speed ratings of tires isn't as straight forward as most people think. All Pass car tires are supposed to be capable of 99 mph. Tires capable of higher speeds are marked with a speed symbol. What most people believe is that they can run at higher speeds without doing anything. But when you go over 100 mph, all except the W, Y, & Z tires require added air pressure. The W, Y, & Z tires also require added air pressure, but at higher speeds than 106 mph.

If you need 35 psi in the tire to carry the load and the max tire inflation rating is 35 psi and it is an H or V rated tire, you're stuck at a max 99 mph speed. That's why several of the low profile tires are rated for 41 psi.

When someone sells you a tire, make sure that there is some extra load capacity. That way you can run at less than the maximin inflation, which allows you to bump the inflation for running at high speeds.

I don't know how many tire shops understand this. Most try to be safe and sell replacement tires with the same speed rating as the OE tire. But the OE tire usually has some extra capacity to allow adjusting the inflation pressure up. So replacement tires ideally should carry the same load at the same inflation, with the same speed rating as the OE tires.