you need to put rubber around the new rims right? Can't do that yourself. I had it done at a professional place the first time, and also at a Goodyear store (haha). They do it fine. We don't have Les Schwab here but I'm sure it's the same thing.

What rubber are you putting on because whoever you buy it from, that's where you should have them mount/balance as well. Much easier that way.

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr