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Between my 2015 and 2017 C7Z I've cracked two OEM wheels, bent another four so bad you couldn't drive on them, and bent another two that aren't too bad for me to keep my backup MPSC2 tires on them. The last two I bent with only 1500 miles on the car. These are the Cup wheels, silver standard wheels, and now a pair of the matte black with red stripe option wheels.
I don't live on a great road but am pretty adept and avoiding the big holes. It seems like the slightest impact is enough to damage these and I'm sure the Z07 suspension isn't helping the new car.
I'm biting the bullet and going forged and I expect they'll hold up a lot better. I pound my F80 M3 down the same road every day and haven't bent the BMW forged rims.
I decided to go with Forgeline because they appear to put the most effort in to testing and certification for strength. I specifically went with the KT1 wheel that Katech designed and Forgeline makes because it looks awesome and I know that Katech is one of the best engineering firms in the world. Here's a pic from their site but I'll make sure I post up pics once I get them as well as update on how they hold up.
These are stock size to fit the stock MPSS run flats. I'm hoping they decide to make an 18x11 and 18x12 combo so I can have matching track wheels.
So you bent them on the street or on the track? We have great roads in Naples but I've bent two on the corner curbing at Sebring (front and rear on the same side after driving over the trailing curbing edge at turn 1). No noticeable bends on the street yet.
I have had the exact oppostite experience. I have the stock cup rims with MPSS and never bent a rim, and have Forged CCW C10's in 18's and have bent each one on all four corners once! ??? I don't know, but I was shocked at the forged CCW's bending.
I bought forged Signature wheels. Two sets actually, one set for the street and one for the track. There are a few threads here about them. Message Khoa and he'll take really good care of you, help you with color choice and sizing. They offer knurling on the lip to keep the wheels from slipping on the rim.
Excellent quality, lots of choice of styles and colors. The best price on forged wheels and six weeks or less turn around. Lots of track days on them by numerous members of the forums here. Love em.
Last edited by MacManInfi; 08-21-2017 at 12:46 AM.
I purchased my 18 GS on 7-20 and last Tuesday bent all 4 wheels and ruined the tires going thru road construction on I5 in WA. state. The lane crossing a bridge was removed with the speed only reduced to 60mph with abrupt ramps on & off the bridge. So are OEM wheels that weak or are the low profile run flats also part of the problem?
QUOTE=Poor-sha;1595402325]Between my 2015 and 2017 C7Z I've cracked two OEM wheels, bent another four so bad you couldn't drive on them, and bent another two that aren't too bad for me to keep my backup MPSC2 tires on them. The last two I bent with only 1500 miles on the car. These are the Cup wheels, silver standard wheels, and now a pair of the matte black with red stripe option wheels.
I don't live on a great road but am pretty adept and avoiding the big holes. It seems like the slightest impact is enough to damage these and I'm sure the Z07 suspension isn't helping the new car.
I'm biting the bullet and going forged and I expect they'll hold up a lot better. I pound my F80 M3 down the same road every day and haven't bent the BMW forged rims.
I decided to go with Forgeline because they appear to put the most effort in to testing and certification for strength. I specifically went with the KT1 wheel that Katech designed and Forgeline makes because it looks awesome and I know that Katech is one of the best engineering firms in the world. Here's a pic from their site but I'll make sure I post up pics once I get them as well as update on how they hold up.
These are stock size to fit the stock MPSS run flats. I'm hoping they decide to make an 18x11 and 18x12 combo so I can have matching track wheels.
I purchased my 18 GS on 7-20 and last Tuesday bent all 4 wheels and ruined the tires going thru road construction on I5 in WA. state. The lane crossing a bridge was removed with the speed only reduced to 60mph with abrupt ramps on & off the bridge. So are OEM wheels that weak or are the low profile run flats also part of the problem?
I purchased my 18 GS on 7-20 and last Tuesday bent all 4 wheels and ruined the tires going thru road construction on I5 in WA. state. The lane crossing a bridge was removed with the speed only reduced to 60mph with abrupt ramps on & off the bridge. So are OEM wheels that weak or are the low profile run flats also part of the problem?
Were you driving in track mode? Rough roads and a stuff suspension doesn't end well for OEM wheels unfortunately.
The OP is on the right track with purchasing fully fordged wheels. I purchased a set of Signature Wheels (19/20), I've done 3 track days and traveled over
4K through out RI, MA, NH with-out issues.
I hear you, I ordered Forgeline wheels before the car was delivered after seeing many of my wax customers bending or breaking wheels. Come on GM even my dodge comes with forged wheels stock
I went signature and haven't looked back. Light, cheaper then the others and great quality. I have 19x10 for the fronts and 19x12.5 with R888 on the back and 18x12 with street Rs for the strip.
08-20-2017, 01:31 PM
I'm done with the OEM wheels
