Catastrophic wheel failure @ 25mph & Pothole
This is all true facts but you can't replace the barrel on a LM either. The lip and barrel are welded so they're essentially 2-piece wheels. I have a set of Forgelines that came off the Z that did flips at Mid Ohio a while back... 3 faces are good and the rest are destroyed but they stayed intact throughout the whole thing.
Forgeline is also a great brand for wheels, I've heard a lot of great reviews.
Nope your pretty spot on, the way you can tell if they're real are:
1. PCD, Size, Weight dimension, wheel ID and Offset are all engraved around the centercap.
2. JWL and "BBS" is engraved on the faces as wheel.
3. The LM rivets(Wheel bolts) are true to only LM's... the length is different so if you see overly long wheel bolts they're after market but the rim is a true LM(no known multi piece replica). OEM LM rivets have "BBS" on them.
4. OEM barrels are not sealed together but welded. So if you see a adhesive bead on the barrel... it's not an OEM barrel. Custom barrels are the only way you can change the barrels by the way.
Useless trivia:
If you see a LM with a Gold "BBS" centercap(assuming it was never changed and bought that way), it was constructed by BBS Japan. All Forged BBS wheels from Japan have a gold centercap... Euro and US models don't, they come in silver. LM's that came from Japan are extremely rare to see for sale now a day. If you guys check Yahoo Japan Auctions they have tons of RGR's,RSGT's, RS' for sale but very very rarely do you ever see a LM or LMR.
1. PCD, Size, Weight dimension, wheel ID and Offset are all engraved around the centercap.
2. JWL and "BBS" is engraved on the faces as wheel.
3. The LM rivets(Wheel bolts) are true to only LM's... the length is different so if you see overly long wheel bolts they're after market but the rim is a true LM(no known multi piece replica). OEM LM rivets have "BBS" on them.
4. OEM barrels are not sealed together but welded. So if you see a adhesive bead on the barrel... it's not an OEM barrel. Custom barrels are the only way you can change the barrels by the way.
Useless trivia:
If you see a LM with a Gold "BBS" centercap(assuming it was never changed and bought that way), it was constructed by BBS Japan. All Forged BBS wheels from Japan have a gold centercap... Euro and US models don't, they come in silver. LM's that came from Japan are extremely rare to see for sale now a day. If you guys check Yahoo Japan Auctions they have tons of RGR's,RSGT's, RS' for sale but very very rarely do you ever see a LM or LMR.
LOL... it's good for the people to have the facts.
Great thread, I work at a failure analysis firm now and it's been said many times at work... if not for cheap Chinese knockoff goods our company may very well be out of business.
If you think this is bad you should see some of the buildings burned down because of a cheap Chinese Li-ion battery.
There are a few Chinese mfg's who actually do give a f*ck but they tend to learn lessons through field failures and trying to figure out what they did wrong, rather than through good engineering (i.e. using eng. principles to design for a certain strength and cycle life, then throw a big safety factor on top of that). Most mfg's just don't give a **** and they put out utter crap knowing it's utter crap.
If you think this is bad you should see some of the buildings burned down because of a cheap Chinese Li-ion battery.
There are a few Chinese mfg's who actually do give a f*ck but they tend to learn lessons through field failures and trying to figure out what they did wrong, rather than through good engineering (i.e. using eng. principles to design for a certain strength and cycle life, then throw a big safety factor on top of that). Most mfg's just don't give a **** and they put out utter crap knowing it's utter crap.
Last edited by Wired 24/7; Jun 30, 2011 at 06:48 AM.
I like to see REAL facts. Can anyone bash on ANY brand wheel based on documented "failures" that people have had?
How many sets of Varrostoen, Einkes, koning, BBS, Racing Harts, axis, blah, blah are sold yearly? how many "failures" have those had yearly?...anyone???
1 or 2 cases of destroyed wheels, and everyone jumps on the "hate wagon".
Im sure every brand out there has some issues. Get the facts then you can come here and start talking trash.
How many sets of Varrostoen, Einkes, koning, BBS, Racing Harts, axis, blah, blah are sold yearly? how many "failures" have those had yearly?...anyone???
1 or 2 cases of destroyed wheels, and everyone jumps on the "hate wagon".
Im sure every brand out there has some issues. Get the facts then you can come here and start talking trash.
Thread Starter
Joined: Aug 2002
Posts: 10,681
Likes: 11
From: Redondo Beach, CA
Great thread, I work at a failure analysis firm now and it's been said many times at work... if not for cheap Chinese knockoff goods our company may very well be out of business.
If you think this is bad you should see some of the buildings burned down because of a cheap Chinese Li-ion battery.
There are a few Chinese mfg's who actually do give a f*ck but they tend to learn lessons through field failures and trying to figure out what they did wrong, rather than through good engineering (i.e. using eng. principles to design for a certain strength and cycle life, then throw a big safety factor on top of that). Most mfg's just don't give a **** and they put out utter crap knowing it's utter crap.
If you think this is bad you should see some of the buildings burned down because of a cheap Chinese Li-ion battery.
There are a few Chinese mfg's who actually do give a f*ck but they tend to learn lessons through field failures and trying to figure out what they did wrong, rather than through good engineering (i.e. using eng. principles to design for a certain strength and cycle life, then throw a big safety factor on top of that). Most mfg's just don't give a **** and they put out utter crap knowing it's utter crap.
I like to see REAL facts. Can anyone bash on ANY brand wheel based on documented "failures" that people have had?
How many sets of Varrostoen, Einkes, koning, BBS, Racing Harts, axis, blah, blah are sold yearly? how many "failures" have those had yearly?...anyone???
1 or 2 cases of destroyed wheels, and everyone jumps on the "hate wagon".
Im sure every brand out there has some issues. Get the facts then you can come here and start talking trash.
How many sets of Varrostoen, Einkes, koning, BBS, Racing Harts, axis, blah, blah are sold yearly? how many "failures" have those had yearly?...anyone???
1 or 2 cases of destroyed wheels, and everyone jumps on the "hate wagon".
Im sure every brand out there has some issues. Get the facts then you can come here and start talking trash.
Who is doing the failure analysis on these wheels? We have a lot of highly trained metallurgists who are experts at analyzing metal fracture surfaces. Sure the metal cracked, but why did it crack?
Last edited by Wired 24/7; Jul 1, 2011 at 03:35 PM.
I was driving and minding my business when I hit a small pot hole, and it turned out to be a bigger pot hole after my car drove over it. It went from a 4 inch wide pothole to a 2 foot wide one.. The ground underneath the pothole gave away and f*ck me over.
Anyone have a 19x9.5 +22 for sale? varstoen 1.1.2 or a pair?
Anyone have a 19x9.5 +22 for sale? varstoen 1.1.2 or a pair?
why in hell would you want to replace the cracked wheel with one from the same company that manufactured it?
i'd replace all 4 wheels asap... cracked wheels are serious business.
When a catastrophic failure of your product could potentially kill someone, as is the case with wheels, even a failure rate of 1 in 1 million is too high. In my industry top tier manufacturers do recalls when their failure rate is greater than 1 in 1 million.
Who is doing the failure analysis on these wheels? We have a lot of highly trained metallurgists who are experts at analyzing metal fracture surfaces. Sure the metal cracked, but why did it crack?
Who is doing the failure analysis on these wheels? We have a lot of highly trained metallurgists who are experts at analyzing metal fracture surfaces. Sure the metal cracked, but why did it crack?
Plus failures that are analyzed and deemed to be "user abuse" (whatever that means) the company may not consider a true failure. It is harder than you might think to collect data on this kind of thing.
Thread Starter
Joined: Aug 2002
Posts: 10,681
Likes: 11
From: Redondo Beach, CA
We have some mechanical testing capabilities but all of our equipment is only accessible by and is only run by our technicians and therefore I wouldn't be able to do anything pro bono ... you could hire us but we are quite expensive, you'd be better off (at least financially) finding a lab that specializes in that kind of testing. Run your ideas by me anyway and we can talk about it some more. If it is an interesting enough project there could be a business case for us to do it (i.e. marketing for example).
I tried to contact some professors at my masters school.. do you know anyone @ UCLA that would be able to run a stress / fatigue test?
