View Full Version : arm bar thing over rear wheels..n00b

12-07-2006, 04:28 PM
i am a n00b and just realized this bar thing over the rear wheels? i have never seen that on a car before, seems to be pretty cool...but what are they called? i know it has something to do with shock absorption and its connected to the movement of the wheel. thats all i know.

also, how do these "bar"s effect the car when adding oversized rims? wont they rub it? what about when lowering/ wont they definitely rub then?

once again, i am sorry if this has been posted. but i dont think anyone is dumb enough to post this up like me. and i have looked for something relateing to this...and i cant find anything


12-07-2006, 04:34 PM
yes it will rub. that is why you have to consider offset and wheel/tire width when upsizing your setup.

various suspension setups will increase or decrease chances of rubbing.

12-07-2006, 05:05 PM
i was thinking an 18" wheel with a 1" drop. will i be good if the offset is stock?

1 ate T
12-07-2006, 05:17 PM
if you're getting 18's your offset will not be stock.

that'd be one funny lookin wheel [:D]

12-07-2006, 05:28 PM
you got me... i am thinking of getting these: (commom but i love them)

http://cgi.ebay.com/ebaymotors/18-Hyper-Audi-A4-A6-A8-RS6-S4-S6-S8-V8-TT-wheels-rims_W0QQitemZ290058844925QQihZ019QQcategoryZ43958 QQrdZ1QQcmdZViewItem

1 ate T
12-07-2006, 05:49 PM
35mm is your offset.. Those should fit without any problems.

12-07-2006, 05:52 PM
so does that mean that i need at least a 35 offset?

1 ate T
12-07-2006, 08:05 PM
No, 35mm is what that particular wheel is... I don't know the limit of fitment, or whenever you'll need spacers. sorry

12-07-2006, 10:40 PM
what the hell? 1 ate T I'm not following you.

if you get an 18 inch wheel with a stock offset and a width of 8-8.5 inches you should be ok running a 225 or 235 tire.

Jman, depending on your drop and what coil over or spring/damper combo you go with, you might rub. check the b4 coilover thread for people posting up about what they're running and if they have rubbing issues.

you can also consider rolling your fenders should you get your setup installed and find you rub.

12-08-2006, 06:02 AM
i dont want anything extreme. 18" wheels, 1" lowering springs...

12-08-2006, 06:21 AM
BTW, since no body seems to have answered parts of your question, that "arm bar" is the upper control arm, which holds the wheel at the proper angle when the suspension compresses. If you lower your car, this will move along with the wheel, so you shouldn't have any more chance of rubbing it than at stock height. My 18x8" wheels 35mm offset, with 225/40-18 tires clear it fine, but with only about half inch to spare.

12-08-2006, 05:27 PM
you're right. won't rub the upper control arm, but the suspension setup you go with can affect rubbing in other spots. hence the fender rolling.

12-14-2006, 05:27 AM
thanks. i think 18x8" with 35mm offset is a good reference.

12-14-2006, 04:00 PM
Yup, and FWIW I ran 18x8.5 rims with 225 series tires--dropped fairly nicely (Just over two finger gap in front and just under a two finger gap in the rear) with HR coil overs and didn't rub the upper control arm or fenders. The wheels had a stock 35mm offset.