yes, another offset question, but for 19's
#16
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So these with fronts of 19x8.5 ET 49 mounted with 235/35/19 are probably going to be a problem. I don't want to get them and try to "make" them work.
DR, I sent you guys an email about these wheels
About 6 months you mentioned that Kinesis was going to produce these 19" wheels...
Here's the link to the rennlist post: https://rennlist.com/forums/showthre...ht=inch+wheels
Did these ever make into production?
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DR, I sent you guys an email about these wheels
About 6 months you mentioned that Kinesis was going to produce these 19" wheels...
Here's the link to the rennlist post: https://rennlist.com/forums/showthre...ht=inch+wheels
Did these ever make into production?
#17
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Also worth mentioning that the tire width is NOT tread width BUT the maximum width of the sidewall or section width when mounted on a specific rim width. The first number is the width of the tire in millimeters, measured from sidewall to sidewall. To convert to inches, divide by 25.4 .The tread width is something less than the sidewall bulge to sidewall bulge. A rim with zero offset simply means half of the rim projects outward from the mounting face of the wheel and half inward. So a 10 inch rim has 5 inches on either side. Negative offset pushes the rim and tire in , positive offset moves the rim and tire out toward the fender. The 928 used negative offset (as do many front wheel drive cars) and the newer 911 designs however the different variations of 911s use several different amounts of negative offset ,narrow body, widebody etc. The Club Sport GT and 1990 > all have flattened upper fender arc lips to gain a bit of extra fender clearance. The Club Sport was fitted with front 8 and rear 9 used a 60 negative offset on both with 225 x50x16 front tires and 245x45x16 rear tires. Porsche was rather conservative. The only thing tricky about offset is that as the rim gets wider you require more negative offset to keep the tire to fender clearance. A two inch wider rim is one inch closer to hitting the fender so according to Porsche requires 25.4 MM more negative offset. In the real world many many people are running much less fender clearance than Porsche intended tire width,ride hight, spring rates, negative camber ALL have an effect on how much clearance is enough. That is part of why answering the question " Will these wheels fit ? " often has no absolute answer. Especially when you add in the issue of brake caliper clearance.
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Wade,
>DR, I sent you guys an email about these wheels
>About 6 months you mentioned that Kinesis was going to produce these 19" wheels...
I got the e-mail and replied back to you on the 28th with this message..
"Hi Wade,
They are still working on those and haven't released them yet. Last I heard a month ago was they were getting close (again). I will check back with them and try to get a status."
No status yet.
>DR, I sent you guys an email about these wheels
>About 6 months you mentioned that Kinesis was going to produce these 19" wheels...
I got the e-mail and replied back to you on the 28th with this message..
"Hi Wade,
They are still working on those and haven't released them yet. Last I heard a month ago was they were getting close (again). I will check back with them and try to get a status."
No status yet.
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#19
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Originally Posted by Jim bailey - 928 International
Also worth mentioning that the tire width is NOT tread width BUT the maximum width of the sidewall or section width when mounted on a specific rim width. The first number is the width of the tire in millimeters, measured from sidewall to sidewall. To convert to inches, divide by 25.4 .The tread width is something less than the sidewall bulge to sidewall bulge. A rim with zero offset simply means half of the rim projects outward from the mounting face of the wheel and half inward. So a 10 inch rim has 5 inches on either side. Negative offset pushes the rim and tire in , positive offset moves the rim and tire out toward the fender. The 928 used negative offset (as do many front wheel drive cars) and the newer 911 designs however the different variations of 911s use several different amounts of negative offset ,narrow body, widebody etc. The Club Sport GT and 1990 > all have flattened upper fender arc lips to gain a bit of extra fender clearance. The Club Sport was fitted with front 8 and rear 9 used a 60 negative offset on both with 225 x50x16 front tires and 245x45x16 rear tires. Porsche was rather conservative. The only thing tricky about offset is that as the rim gets wider you require more negative offset to keep the tire to fender clearance. A two inch wider rim is one inch closer to hitting the fender so according to Porsche requires 25.4 MM more negative offset. In the real world many many people are running much less fender clearance than Porsche intended tire width,ride hight, spring rates, negative camber ALL have an effect on how much clearance is enough. That is part of why answering the question " Will these wheels fit ? " often has no absolute answer. Especially when you add in the issue of brake caliper clearance.
#20
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Originally Posted by DR
Wade,
>DR, I sent you guys an email about these wheels
>About 6 months you mentioned that Kinesis was going to produce these 19" wheels...
I got the e-mail and replied back to you on the 28th with this message..
"Hi Wade,
They are still working on those and haven't released them yet. Last I heard a month ago was they were getting close (again). I will check back with them and try to get a status."
No status yet.
>DR, I sent you guys an email about these wheels
>About 6 months you mentioned that Kinesis was going to produce these 19" wheels...
I got the e-mail and replied back to you on the 28th with this message..
"Hi Wade,
They are still working on those and haven't released them yet. Last I heard a month ago was they were getting close (again). I will check back with them and try to get a status."
No status yet.
DR, thanks. For some reason I didn't get your reply back. I may have inadvertantly deleted it or something. I'll look for word when they are available.
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#21
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Originally Posted by heinrich
Offset is optimal at 52 for up to 17's, and then things change as you go wider and taller. "Stick out" is the opposite of "rubs the shocks". Positive offset makes wheels rub the shocks, negative offset makes wheels stick out. So, if you have a 52mm and you go with a wider contact patch, you need to raise offset to keep from "sticking out" which incidentally can damage your fender lip. But in pulling the wheel running surface inward, you tend to hit the shock and also the fender liner. It's a fine balance. A 49 should stick out significantly. Remember that you tirn the wheel as the spring compreses, and that can change the "sticking out"-ness of the wheel a lot as you drive nd hit the fender.
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Wade,
>DR, thanks. For some reason I didn't get your reply back. I may have inadvertantly deleted it or something.
After looking at your e-mail address I think I know why, AOL doesn't like us for some reason and they filter a lot of our e-mails. Check your "Junk Folder" and it may be there. You may also want to add my e-mail address to your "Safe list"
>I'll look for word when they are available
OK, thanks and have a Happy New Year!
>DR, thanks. For some reason I didn't get your reply back. I may have inadvertantly deleted it or something.
After looking at your e-mail address I think I know why, AOL doesn't like us for some reason and they filter a lot of our e-mails. Check your "Junk Folder" and it may be there. You may also want to add my e-mail address to your "Safe list"
>I'll look for word when they are available
OK, thanks and have a Happy New Year!
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Wade, I actually looked at the Antera's last year. I think you are going to have a tough time mounting them properly on a 928 due to their offset. My wheels are 8" in front with about a 61mm offset. I had to use 225/35 to keep from rubbing the inner of the outer. The side wall is not straight up and down, but rather pitched back to the inside of the wheel. Less side wall flex, but greater handling.
Here are a couple of pix to give you an idea of what I needed to avoid rubbing
These pix below show the wheel and tire stuffed under the front wheel well. The first is at an angle looking down and the second is near straight down. (you can just barely see the tire in the 2nd pic) 90 degrees and you cannot even see the edge of the tire.
The reason I wanted to show you these pix are because I am at the absolute limit keeping the wheels and tires INSIDE of the wheel well. When I turn hard at the lock moving forward, I get some light rubbing. If I had gone with a tire that had a wider foot print , side walls straight up, I would rub the inside of the outer wheel well upon shock compression. The look I have is quite aggressive as all of the wheels are out to the limit. Even the backs at 10" with 65mm offset. The tires have the same profile.
I had to sacrifice a fat meaty look to make these particular wheels fit, but I am OK with that. The overall look completely makes up for it.
JMHO, having wheels and tires sticking out further than the car...even a half inch, looks wrong.
Good Luck and I hope this info helped a bit!
Here are a couple of pix to give you an idea of what I needed to avoid rubbing
![](http://forums.rennlist.com/upload/ft1.jpg)
![](http://forums.rennlist.com/upload/ft.jpg)
These pix below show the wheel and tire stuffed under the front wheel well. The first is at an angle looking down and the second is near straight down. (you can just barely see the tire in the 2nd pic) 90 degrees and you cannot even see the edge of the tire.
![](http://forums.rennlist.com/upload/ft2.jpg)
![](http://forums.rennlist.com/upload/ft3.jpg)
The reason I wanted to show you these pix are because I am at the absolute limit keeping the wheels and tires INSIDE of the wheel well. When I turn hard at the lock moving forward, I get some light rubbing. If I had gone with a tire that had a wider foot print , side walls straight up, I would rub the inside of the outer wheel well upon shock compression. The look I have is quite aggressive as all of the wheels are out to the limit. Even the backs at 10" with 65mm offset. The tires have the same profile.
![](http://forums.rennlist.com/upload/ft4.jpg)
I had to sacrifice a fat meaty look to make these particular wheels fit, but I am OK with that. The overall look completely makes up for it.
![](http://forums.rennlist.com/upload/w5_copy1.jpg)
![](http://forums.rennlist.com/upload/w7_copy1.jpg)
JMHO, having wheels and tires sticking out further than the car...even a half inch, looks wrong.
Good Luck and I hope this info helped a bit!
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Thanks for the pics and info, Keith. I'm figuring those Anteras are going to stick out about an inch. And like you said, even a half inch outside is just wrong looking. Looking at your car, you are definitely at the limit on the front. I didn't realize you had 19x8's on the fronts.
Oh well, its no biggie. I wasn't really "looking" for new wheels, but sometimes you come across a deal...
Oh well, its no biggie. I wasn't really "looking" for new wheels, but sometimes you come across a deal...
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)