cwmotorsport

Hey all, Iam new to Audiworld and recently purchased a 2000 a6 4.2 w/ sport package. looking to get new rims and found a rs4 replica wheel that is 20" x 9" w/ a 40mm offset. My question is will I have an issue w/ caliper clearance and will I need to run spacers for the rims to fit properly? I was told by the rim shop that I would need to run a 15mm spacer. I want the rims to sit flush withthe wheel wells and want to make sure they won't cause any issues when I lower teh car. Any helpful advicewill be greatly appreciated.

2.7Lturbo

will need spacers, will cause geometry issues if you lower the car. your call, but at a certain point "looks" become un-practical fron an everyday driver.... or maybe im just getting too old, i can quite tell lol

Redneck Truck

With a 40mm offset and 9" width, I wouldn't be surprised if the tire and/or the rim rub the spindle. The inner lip will sit almost 20mm inboard from factory.

Just Me

i'm not following your answer. Wide rims cause geometry issues? Or am i misreading?

G

Just Me

That's a BIG wheel. What tires will you run to keep the OD close to right, and will they provide any practical protection. Next, i agree with redneck that it will most certainly rub on the inside. If you move it out 15mm as suggested you now have two problems:

1. a spacer. I wont blather on, but they are potential trouble.
2. about 3/4" of steering geometry error - not good.

If you plan to park and polish it, should work fine.

G

Redneck Truck

The only geometry issue I know of that's related to the rim is scrub radius. Changing the wheel offset would affect that, but I don't know how.

2.7Lturbo

haha basicly what were saying is if you plan to lower go with a smaller wheel 17-18, whill look just as big as it will fill in the wheel well more on a lowered car and not fubar stuff as much as going as big as 20

Just Me

correct. I can explain, but dont have the strength unless someone wants the explanation *again*.

Its basically placing the entire wheel on a lever arm extending out from the hub. When you turn the wheel, the wheel does nto pivot on its center. rather, it scrubs a radius around the pivot point. Bad. Of course the lever is only 15mm long, but there's a LOT of pressure on that lever!

G

Just Me

well ,that is the diameter issue. The offset adn width issues are totally different - read above.

G

sxates

Bigger isn't always better. On an A6, 19" is the biggest I'd go, and honestly the 18's on mine look great.