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gti power
18-11-2008, 11:22 PM
hi guys bought some 17" porshe wheel's for my audi a4 advant im told i need some 5x112-5x130 adaptors 20mm ideally but 25mm will do? anyonecare to help?will i have any issuses?

euroslap
18-11-2008, 11:36 PM
Do you know what the width and offset of both your new and old wheels are? If so I can work out exactly where they'll sit. ;)

gti power
20-11-2008, 09:13 PM
Do you know what the width and offset of both your new and old wheels are? If so I can work out exactly where they'll sit. ;)
all i know is the porshe wheels are front= 7x17 ET55
rear=8.5x17 ET 50

;)

euroslap
21-11-2008, 12:36 AM
What size & offset are your standard rims?

gti power
23-11-2008, 10:40 PM
What size & offset are your standard rims?
the et is 38 and pcd is 5x112:beerchug:

adamss24
24-11-2008, 10:25 AM
hi guys bought some 17" porshe wheel's for my audi a4 advant im told i need some 5x112-5x130 adaptors 20mm ideally but 25mm will do? anyonecare to help?will i have any issuses?

Hi, get 20mm adaptors for the front wheels and 25 for the back. That should give you the corect offset ie ET35. You need to check the rolling radius on the rear wheels/tyres match the rolling radius on the front, otherwise the ABS sensors will pick up a fault and the light will come on. This happens as the porsche rims have a staggered look and wider rear tyres being front wheel drive. Check the german ebay for BBS spacers, H&R or FK. Idealy go for steel spacers as they are stronger but you need to put copper slip on the mating faces so they dont fusion with the hub when they get rusty. Most spacers/adaptors are alloy and make shure they are hubcentric.

euroslap
24-11-2008, 10:59 AM
Working on the basis that you're using 25mm spacers all round and that you're standard rims are 6.5J you'll have..

On the rear 17mm less inner clearance and the outer rim will stick out 33mm more than the standard rim.

On the front you'll have 2mm more inner clearance and the outer rim will stick out 14mm more than standard.

If you use a 20mm adapter take another 5mm off the outers and add 5mm on the inner calculations above. ;)