Do monoblok HRE wheels crack/bend easier than 3 piece?
These are M40 monoblok which should hold the weight of my 3950ish lb E55 sufficiently, and as some of you have given me a hard time over, I run a little thicker tire than others choose to, (35 series)so that I don't have issues bending wheels.
So the other night I was out putting miles on the car giving some use to the new Evosport rotors I just installed, and I hit a pothole fairly hard. I instantly freaked out and pulled over thinking I bent a wheel so I jacked up the front left corner and spun the wheel, perfect. No bend at all. However as I start driving I hear a clicking noise not unlike a big screw in the tire that increases in frequency with speed. S I pull over and jack up, spin again.. No screw. Perfect tire.
As I continue to drive I hear the clicking, and it's getting louder. Then I realize that my car is starting to pull to the left and see that the tire is low on air. So I air up at a 711 and I can hear air leaking, only to find out when I get home that the wheel has cracked in two places without being bent!
This was a first for me, having been around high end custom cars my whole life seen plenty of messed up wheels, but never one crack with no bend.
Are the 1 wheels more prone to crack instead of bend? This is my first set of monobloks, all the other HREs I've had were 3 piece.
Last edited by Sir-Boost-a-Lot; Feb 19, 2013 at 06:36 PM.
I take the wheel to a very well known repair place here in Orlando. They have fixed wheels for plenty of my friends and shops in town, and they do all the dealership work. This guy tells me 60$ and come get it tomorrow. I tip him $20 to take care of the chrome face and cover it with blue tape so there are no scratches in view.
I go back today and the owner and one of his guys are messing with it, He's telling me that they're having a hell of a time with it that the wheel is rusting and he's chasing the weld all over. To my horror he's got a ****** chips ahoy size glob of weld all around where the crack used to be, says it won't stop leaking and he has to keep chasing it. He's trying to convince me that the wheel is bad, it's made of bad aluminum and that's why he's having trouble with it and I'm boiling because I know he just doesn't want to own up to a mistake.
I have to grit my teeth and take some deep breaths because I see the ****** Miller 200 MIG with a spool gun he's using to weld it with, and the wheel is warped in that area now where he's been heating the hell out of it. I personally can TIG very well, and had I known these clowns were welding my $1500 wheel with a damn spool gun MIG I would have fixed it myself, and just had them put it on their lathe to grind the bead area smooth.
Now I'm not sure what to do. He's got this huge glob of $h1t weld on my wheel, and going to smear silicone all over it to make it not leak. I don't want this piece of $h1t wheel anywhere near my car, but I can't even take my car off the lift at my buddies shop because the stock wheels won't fit over the 390mm brakes I just put on it, and we tossed the old rotors!!!
I get really pissy and moody over stuff like this, I have other cars and don't need this one.. I feel like putting the set of wheels on eBay for 1$ with no reserve and the same thing with the car.
Input? I'm sure this wheel will hold air when he's done with it but it's destroyed IMO, bit have little faith in getting anything from the shop or their insurance. I don't think they have any idea what that wheel costs.

Last edited by Sir-Boost-a-Lot; Feb 19, 2013 at 06:33 PM.
Have you contacted hre to see what they have to say? They might offer a discount on a replacement wheel and ask you to send that one in so they can inspect it and see why it cracked(although seeimg that weld effort I doubt there is anything left to look at).
Good luck and let us know if hre offers any assistance.
I would also speculate a 3 pc barrell would have cracked just like the monoblock you have.
Ask Loungn14 or myself. We have both cracked a barrel. Ive come to the conclusion that 3pc wheels dont offer any advantage over a monoblock. You brake a barrel, it will still cost you over $500 to fix. You cant weld a barrel. A monoblock would be easier to repair but it might have to be replaced which would be more than the barrel itself. I dont know HREs policy on rims developing cracks.
Get a hold of Lon who is a vendor on this board and see what he can do for you.
When I had a minor crack the Mexicans would put tar on it and it would last for 6 months.
Unfortunately, they don't do it anymore
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I wouldn't dare bitc* to HRE about it because I 1. Bought this set secondhand, and 2. Had a third party fix them.
The cracks before were very fine, starting at the inner edge and going in towards the face of the wheel about an inch or two.
The reason I didn't send it back to HRE is because my car is on a li at my buddies shop and is stuck there until I get the wheel back, and this place does it in one day in town. Charge it to the game I guess, but the repair was SO minor compared to the train wrecks I've seems these guys fix before.
1. Took the tire off and put it on a machine that holds the rim
2. Stretched the crack minutely and then sanded it down with a sand gun
3. Put some sorta of material that upon contact with Aluminum solidifies (similar to what plumbers use to fix leak in this case it was for Aluminum) forgot the name
4. Let it dry , and then sand that down to a fine level
5. Put some black material on the whole rim before putting the tire on
6. Checked it and all well done.
Told me that he did the same thing with his buddy's BMW and it is still in tip top condition. I've done 3,500 miles on them and still running strong (knock on the wood). Also mine was stock AMG rim.
FWIW - This is one of the reasons I think 18s with a larger side wall tire are better than 19s or 20s...
I know, I accept the blame for both the choice in wheels and for navigating the wheel into a hazard. But a 255/35/20 is practically a tractor trailer tire compared to what some of these guys run... Damn, imagine what would have happened to this guy's wheels!
https://mbworld.org/forums/w211-amg/...1-e63-wow.html
I can't exactly just get a new wheel, it's gonna be at least a month, probably 2 to get another one in chrome. I've either gotta get another set of 19"+ wheels in the interim, or just park it for a while..
FWIW - This is one of the reasons I think 18s with a larger side wall tire are better than 19s or 20s...








