Anyone bought these? - 17" Keystone Cup Wheels
06-30-2009, 10:11 PM
#16
Three Wheelin'
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Location: Bournemouth, Dorset, UK.
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Hi 
IF ! they are genuine Porsche wheels that they have refurbed they will ALWAYS have the offset etc stamped on either side of the valve (like SCOTTZJ above) , according to my understanding, copies have the offset elsewhere on the wheel...I think lol
All the best Brett
IF ! they are genuine Porsche wheels that they have refurbed they will ALWAYS have the offset etc stamped on either side of the valve (like SCOTTZJ above) , according to my understanding, copies have the offset elsewhere on the wheel...I think lol
All the best Brett
08-30-2010, 12:12 PM
#17
Rennlist Member
Joe, Did you ever figure out the best place to buy these rims? Are the offsets 65mm front & 52mm back? I am looking for a ful set for my 89 928 S4. Let me know. Thanks, Tony
08-30-2010, 12:25 PM
#18
Nordschleife Master
Cup I's are:
7.5x17 ET65
8x17 ET52
9x17 ET55
and Cup II's are:
7.5x17 ET65
8x17 ET65
9x17 ET65
according to this site:
http://www.wheelx.com/porsche-928-parts.html
If 8x17 Cup II is really 65 its almost ideal for 928's front end. Even Cup I's 52mm works. Only problem is that 8x17 ET65 OEM wheels should not exist at all. Maybe these are in reality new replicas but Cup II ET numbers are still strange.
7.5x17 ET65
8x17 ET52
9x17 ET55
and Cup II's are:
7.5x17 ET65
8x17 ET65
9x17 ET65
according to this site:
http://www.wheelx.com/porsche-928-parts.html
If 8x17 Cup II is really 65 its almost ideal for 928's front end. Even Cup I's 52mm works. Only problem is that 8x17 ET65 OEM wheels should not exist at all. Maybe these are in reality new replicas but Cup II ET numbers are still strange.
Last edited by UncleMaz; 08-30-2010 at 01:41 PM.
08-30-2010, 03:13 PM
#19
Racer
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Location: Ponte Vedra Beach, FL (Jacksonville)
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Hi Tony,
I bought my set of OEM Porshe Cup 1 wheels from a Rennlist member who had owned a '93 928 GTS and had replaced the Cup 1's with another wheel type.
I looked all over the Internet and while some sites advertise Cup 1's, none of the companies actually had them. Cup 1's are pretty rare and hard to find, at least the OEM type as only a few hundred GTS' were sold in N. America.
Joe
I bought my set of OEM Porshe Cup 1 wheels from a Rennlist member who had owned a '93 928 GTS and had replaced the Cup 1's with another wheel type.
I looked all over the Internet and while some sites advertise Cup 1's, none of the companies actually had them. Cup 1's are pretty rare and hard to find, at least the OEM type as only a few hundred GTS' were sold in N. America.
Joe
