NEED HELP PLEASE SOMEONE ASAP!!

[ShivsettE24]

Hey guys im pretty new to the bimmer scene and im having trouble with putting new wheels on my 86' 635csi. Now, would 235/60 16s fit on my car? would i need to do anything to make them fit? any help with be much appreciated. thank you also, would a rim that had a 99H load index tire be ok if i put 235/60 16s but 100H on them? im sot sure if the load index number matters but just making sure. Thanks again, any help much appreciated

[Chris Wright]

Hey guys im pretty new to the bimmer scene and im having trouble with putting new wheels on my 86' 635csi. Now, would 235/60 16s fit on my car?

The short answer is No. They would be 27.1" in diameter and would rub on the bottom of the spring perch.

Make sure you don't still have the TRX rims/tires ... nothing else will fit those rims but the Michelin TRX's @ $400 per tire !!
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Here is a Cut & Paste of some general info:

The size of the original rims and tires that came from the factory:

....................................... Rim Width x Diameter - Offset or "ET" (mm) - Tire Size
Stock wheels ('76 to '81) ............ 6" or 6.5" x 14" - ET22 with a 195/70-14" tire that has a diameter of 24.74"
Stock wheels ('82 on) ................. 6" or 6.5" x 14" - ET22 with a 205/70-14" tire that has a diameter of 25.30"
TRX (165mm x 390mm) ............... 6.5" x 15-3/8" - ET22 with a 220/55-390 tire that has a diameter of 24.88"
TRX (195mm x 415mm) ............... 7.6" x 16-3/8" - ET19 with a 240/45-415 tire that has a diameter of 24.84"

The typical replacement rim is

7" or 7.5" x 16" - ET20 or less with a 225/50-16 tire that has a diameter of 24.85"
7.5" or 8" x 17" - ET20 or less with a 235/45-17 tire that has a diameter of 25.32"

The Tire diameters range from 24.8" to 25.4" .

The rears have plenty of space and can take an 8", 9" or even a 10" wide rim with the proper offset and tires of 255 or 265 unless you have the SLS accumulators, in which case the 255 and up can hit them in hard cornering. It is the front that is the most critical and an 8" wide rim is generally the largest without a spacer or a smaller ET.

The larger the rim and tire the more stress that is put on the front suspension and the more likely to inroduce a shimmy into the front unless the front suspension is tight.

All BMW's (except the e30) use a 5 x 120mm bolt pattern and are "hub centric", i.e. they are centered by a lip on the hub, not the bolts. They all have the same size hub hole (72.56mm) with the single exception of the larger hole in the e39 which will still fit fine, but they will need hub centering rings (not spacers), $15 from Discount tire. Most after-market rims have hub rings also. The 3-series rims generally won't fit because the offset is too high, running around ET40/48 and the 7-series with an ET of 23 will generally need a hub centric spacer of 5-10mm depending on the width of the rim. Sometimes a narrower tire (215/205) can be fitted to the 7-Series rim without a spacer and not rub also (but I think is depends on the rim width).
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Here is a good Rim/Wheel Size Calculator:
http://www.wheelsmaster.com/rt_specs.jsp

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Here is a site that lists all of the wheels that BMW made, with pictures and specs and the cars they came on:

http://felgenkatalog.auto-treff.com/