5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
You dont *need* the studs, but it makes it a lot easier to put the wheel on should you take them off frequently. Rather then holding the wheel and trying to thread the bolt, you put the wheel on and the studs hold them in place. With spacers you need longer bolts either way, so most just upgrade to the studs out of convience. My 18"s weigh 45lbs each, so i cant imagine trying to lift a 20" in place and holding it while I thread in the lug nuts.
The spacers come in mm widths so just convert the it over to find the one you need. Spacers are cheaper then coilovers so start with those.
From the Turner website:
A wheel spacer helps by moving the wheel away from the caliper, wheel spokes, or suspension that is causing the clearance issue. If your wheels have the wrong offset (too high an offset, causing the wheels to be too far inward) a set of wheel spacers can correct this by pushing the wheel out to the correct offset.
Lord_Vader - the front tires have around 1/2 inch from the outside of the tire to outside part of the fender. The rear tires have 3/4 inch from the outside of the tire to the outside part of the fender.
To prevent the tire from rubbing on the inside, I would have to install 1 inch spacers. This means the front tire will stick out 1/2 inch, and the rear tires will stick out 1/4 inch past the fender. Does this mean that rolling the fender will no effect now? I already rolled my fenders, but since the tires would be past the fender won't they rub on the outside of the tires no matter what now?
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