vectorsolid

Intro: Been running my M&H 8.5/24.5-13 on lenso's. The lenso rims are 7.5" wide with a 4.75" BS.

Question: I want to stretch the tire out a bit on a wider rim. Anybody mounted those on say a 9" wide rim? How'd it fit? Mount okay. Anybody on something wider than 7.5 with input?

Fitment is on an EG. Stock uncut fenders. Figured I'd ask before spending $750 on rims to find out it was a "marginal" idea and the tire shop that mounted yours wanted to kick your @sses.

and if you made it this far, anybody try the M&H 9.5/24.5-13 yet? 9 or 10" wide wheel with that fresh rubber?

Thanks for the input. I remember as a younger lad that fresh rubber meant I was hoping to get lucky. Now, I'm hoping to get lucky with my fresh rubber, but it seems to have taken on a completely different meaning... *sigh*

Garage 808 Hatch

Putting a slick on a 1/2" wider rim isn't an issue with mounting. My only thought is how will it effect the sidewall doing it's job?

mikesrex

I have some 13x10 wheels that I have 22X9 MH's on at the moment. The guy I originally bought the wheels from had 24.5x9.5's on them and said he went straight to consistent 1.5x 60's after switching to the x10 wheel. I think he was cutting 1.6-1.7 before hand with the same size tires on a narrower wheel. When I go turbo I plan on picking up a pair of MH 24.5x9.5's. This is why I bought the wheels in the first place.

redboost10

We have always used a wider rim than the slick. On these lights cars with lots of wheel speed, even at low tire psi the tire can cup and you can lose contact patch.

JDMBrian

x2^^ I remember I went to the pump gas drags a couple years ago. I asked some of the racers why they were using a wider rim for their slick. And they told me they were trying to get around the 10.5 rule, by using a wider rim to get a flatter cross section/contact patch.

YZFR6

I'm currentlying running a 13" x 10" wheel from Exospeed with a 24.5" x 9" MT and it definitely gives a true 9" contact patch. My car is an EG as well and I'm running a 5" BS. Let me see if I can get a pic for you.

lou-tdi

Everytime i speak to tyre guys about this, they say it's not going to work, but I know people have seen a difference when going from a 7'' to a 9'' wheel, so on that basis, it's going to work right? maybe there is a limit of how much you can stretch them?


Im not sure if i'll suffer from the extra weight on a allmotor car, but my plan is to go 13x10 exospeed wheels.

I suppose its apples and oranges in a way, but look at the 10.5 outlaw class.

~ FWIW I remember someone saying the turbo school guys reckon soft sidewalls can slow you down some?


Just thinking out loud, in for info

hello1320

A wider rim will have a drastic effect on tire growth, especially with 24.5 tires. Mounting 24.5-9 Mts on a 10" rim is not a problem at all. Another thing to watch is the possibility of the bead separating. This shouldn't be problem with AM cars. Bead screws or locs is a good idea. I run welds 13x10s. 4 inch bs. Turning becomes a problem with stock fenders The welds r a lot cheaper that other 10" rims.

Poootie

Gato should chime in to this thread!! ;-)

8's on a 24.5" tire. But how wide was the rim used?

ExospeedAMcrx

We've been making quite a few of the 13x10s for alot of the turbo guys. I would recommend rim screwing them though when running much smaller width tires.

rota92

Or just get those trick beadlocks from you, along with your wheels

ExospeedAMcrx

on a 13", unfortunately, can't do a double beadlock. The diameter of the tire is just not as big enough to be stretched like a 15" can. So unfortunately, single beadlock only is possible and have to rim screw on the other side if you really want the beadlock.

the 15" is a different story, you can double beadlock those no problem. Just did one for a Supra and a Mustang actually.

rota92

Edited for accuracy

hello1320

U can absolutely double beadloc 13s

ExospeedAMcrx

Ya you can. Let me clarify if I was vague on it. Its all depending on how the drop center is on the wheel and how the beadlock is designed. Backspace also matters if a double beadlock can be done. On ours we just couldnt make it work that it'll be "easy" to do. Unless you have a better way to mount it, let me know. I seriously tried to make it work, but not with the way our backside of the wheel is made for brake clearance. It depends on the wheel design if there is that additional drop center, thats what will make a difference.

Show me a picture of one that is double beadlock 13" and I can explain.

nonvtecallmotor

Have you took any measurements?

I have and it will never fit unless you get smaller brakes and rotors....

ExospeedAMcrx

Right. With a certain the drop center design, it can work, but having that drop in the middle of the wheel to the back half of the wheel, the inside diameter is sacrificed. So lets say you have a 12" ID clearance for brakes/rotor, if you have that drop center that it helps clear for a rear beadlock, it can lower the ID to about 10.5" Our stock brakes are much bigger diameter than that. Unless you got smaller rotors and small brakes, it'll be hard to do. Like I said, unless there was another way that I'm not familiar with, I'd like to know.

nonvtecallmotor

I understand about the drop center, but how are you getting the wheel on the car with the beadlock? The beadlock will not fit over the stock brakes no matter how big the drop center is.

ExospeedAMcrx

LOL, that too. That's another issue with the backside beadlock. I forgot to mention that. Yes on our beadlock, the ID is 11.5" So if the rear beadlock did mount easy, you still have to massage the wheel in there to pass the brakes and at the same time do some shaving on the brakes and the beadlock ring itself. Or of course have smaller caliper/rotor to begin with.

That's also an issue with 15" wheels with certain aftermarket brakes. I know that with big brakes(Mark Williams, etc) it cuts it close and you have to pass it in there kinda at an angle so the ring goes past caliper/rotor.

nonvtecallmotor

I've tryed many ways to make them work.

Poootie

Spin Werkz makes a 13 x 10" rim also

ExospeedAMcrx

dood, if it could work a certain way, I seriously would like to know. LOL. But in general, most of our guys wont go through the hassle of getting smaller brake setups, etc. That's why its one of those that only a few will end up trying.


I'm trying to look for side comparison vs other wheel widths that I took, but this is the only I found that I uploaded on photobucket. I did this comparison to show lip size, so the side shot wasnt the focus on this one.

For the ones not familiar with the drop center, its the part that dips lower in the barrel of the wheel. Some drop centers are just 2" wide, some extend farther and can be 4-5" wide.

hello1320

Oooooooo I thought u ment just the rims. I have seen Sprint cars with double beadlocs on 13s....I misunderstood sorry. I would sacrifice smaller breaks for adouble beadloc. But also run a 11 inch rim....u can have them widened for a fairly reasonable price.

vectorsolid

Wil, so 9 or 10 wide on the 8.5/24.5-13 M&H? Just looking for wider than the 7.5 of the Lenso. You should mount one up on a 10" rim so we can have a peak.

I suspect I'm gonna run those a few times and then go to the, 9.5/24.5-13 M&H (if they ever get them back in).

I'm thinking star8, 9" wide, 4" bs. BUT, would the 8.5/24.5-13 M&H ACTUALLY fit on a 10" rim?

Where's John from M&H? He'll find this thread.

hello1320

Yes it will fit...but u have to remember the bead separation risk.