Those with BBK's..wheel offset question...
Thread Starter
Member
Joined: Oct 2002
Posts: 21,810
Likes: 3
Those with BBK's..wheel offset question...
...what rims are you running, and what offset?
I'm looking to have cutom rims made, and haven't figured out the offset I'm going to need.
B.D. sent me some great info on measuring your existing rims to see if the StopTech setup will fit an existing rim. But it hasn't helped me to figure out the offset on a rim I don't have yet.
Any other ways to go about this?
I'm looking to have cutom rims made, and haven't figured out the offset I'm going to need.
B.D. sent me some great info on measuring your existing rims to see if the StopTech setup will fit an existing rim. But it hasn't helped me to figure out the offset on a rim I don't have yet.
Any other ways to go about this?
AudiWorld Expert
Joined: Feb 2004
Posts: 27,196
Likes: 2
From: Lexington, MA
Just use that diagram to measure the distance...
between the mounting surface and the spokes. It really does not matter the actual offset, since you could have a low offset wheel that has deep dish lips which bring the spokes inward which may interfere with the caliper. That being said, you really need to focus on the distance and shape of the spokes.
If you look at the <a href="http://www.stoptech.com/tech_info/charts/98-130-2470-01.pdf">Stoptech chart</a> (I know it says S4, but the same chart is shared with the 2.7T), it looks like you need at least 45.1mm PLUS the 2mm extra clearance they suggest from the mounting surface of the hub. They also have the countour of the caliper (355mm BBK setup) in that chart, so according to the chart, this 45.1mm+2mm clearance must be maintained for at least a radius of 172.5mm to clear the outermost edge of the caliper.
So, whatever offset wheel you choose, make sure the spokes maintain a distance of at least the 47.1mm from the mounting surface for at least 172.5mm radius.
Make sense to you???
If you look at the <a href="http://www.stoptech.com/tech_info/charts/98-130-2470-01.pdf">Stoptech chart</a> (I know it says S4, but the same chart is shared with the 2.7T), it looks like you need at least 45.1mm PLUS the 2mm extra clearance they suggest from the mounting surface of the hub. They also have the countour of the caliper (355mm BBK setup) in that chart, so according to the chart, this 45.1mm+2mm clearance must be maintained for at least a radius of 172.5mm to clear the outermost edge of the caliper.
So, whatever offset wheel you choose, make sure the spokes maintain a distance of at least the 47.1mm from the mounting surface for at least 172.5mm radius.
Make sense to you???
AudiWorld Expert
Joined: Feb 2004
Posts: 27,196
Likes: 2
From: Lexington, MA
Oh, just a reminder, dont forget about the overall internal diameter of the rim...
MUST be at least 201.6mm+2mm to clear the outermost edge of the caliper (furthest edge away from the hub center). I am assuming that you are going 18" or 19", just make sure the inner diameter is large enough.
Thread
Thread Starter
Forum
Replies
Last Post
TRM
S4 / RS4 (B5 Platform) Discussion
3
Feb 19, 2003 10:15 AM
Kinetic0510
A4 (B5 Platform) Discussion
15
Dec 27, 2001 01:57 PM
