» Site Navigation | | » Recent Threads | | | | | | | 10-13-2008, 09:35 PM | #1 | Junior Member Join Date: Oct 2008 Location: Baltimore Posts: 19 | Tire size question for Style 17 BMW wheels Hi Guys, For a '98 BMW 318ti, what is the widest tire that one can run on the stock (15" x 7") 5 spoke wheels? Given the 7" wide rim, in principle I could put 235/60/15 in the rear and 225/60/15 in the front. But can one expect any rubbing against the fender wells or shocks with this setup? Should I be using a different profile instead? I don't mind using rear wheel spacers. The car has not been lowered and would only be run on the street. Any feedback would be greatly appreciated. Thanks, Humberto- | | | 10-13-2008, 09:40 PM | #2 | Senior Member Join Date: Apr 2007 Location: Elizabeth City, NC Posts: 3,877 | Hey, not sure about the tires, but if you are interested check out the mid-atlantic forum. We are having a meet next weekend. Welcome to the site! __________________ ~Dave~ 98 328ti Morea Grun slicktop 11 128i space gray slicktop 13 JGC WK2 Deep Cherry Search | RealOEM | | | 10-13-2008, 10:27 PM | #3 | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 | ?? what are you trying to acheive though with that size tyre ?? on a 7" , you should be on a 215 50 15 // max a 225 45 15. 235 60 15 would look wrong __________________ Vin Number decode and Retrofit Pdfs Available Free ! Just PM | | | 10-14-2008, 01:38 AM | #4 | Senior Member Join Date: Sep 2007 Location: asdfasdf Posts: 10,002 | Mallard's right, those tires would be too wide for the rim | | | 10-14-2008, 03:42 AM | #5 | Junior Member Join Date: Oct 2008 Location: Baltimore Posts: 19 | Hi tiFreak, Mallard, Why is 235 mm too wide for a 7" rim? According to tirerack, one could put a 235/60/15 tire on rim with width in the range 6.0"-8.0". Refer to the following example for a Pirelli P600 tire: http://www.tirerack.com/tires/Spec.j...e1=yes&place=0 I really like the light, stock rims and I just want to see if I can install wider tires... Thanks, Humberto- | | | 10-14-2008, 06:59 PM | #6 | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 | 235 mm - 65% = side profile height of 141mm high..... Fu*king ballooooons man.. also, with referance to the link provided.. your rim width may be 7" , but your cross section is 9,5" Dont do it, __________________ Vin Number decode and Retrofit Pdfs Available Free ! Just PM | | | 10-14-2008, 07:12 PM | #7 | Junior Member Join Date: Oct 2008 Location: Baltimore Posts: 19 | Thanks, Mallard...I definitely don't want balloons! I will stick with 225/55/15s... Cheers, Humberto- | | | 10-14-2008, 07:18 PM | #8 | Senior Member Join Date: Apr 2007 Location: Elizabeth City, NC Posts: 3,877 | You can use this tire size calculator to figure how much the speedo will be off. http://www.miata.net/garage/tirecalc.html __________________ ~Dave~ 98 328ti Morea Grun slicktop 11 128i space gray slicktop 13 JGC WK2 Deep Cherry Search | RealOEM | | | 10-14-2008, 08:00 PM | #9 | Junior Member Join Date: Oct 2008 Location: Baltimore Posts: 19 | Thanks, spidertri. | | | 10-15-2008, 04:31 PM | #10 | Junior Member Join Date: Oct 2008 Location: Baltimore Posts: 19 | Hi Guys, One last question, the 15" stock wheels have a 47 mm offset. Can I put 5 mm spacers on the rear wheels, to better fill the fender well, with a resulting 42mm offset w/o having any rubbing problems. At what offset does the tire/wheel stick out the fender (41mm?) ? I going to go with 225/45/15s, all around (I had a typo in the response yesterday). Thanks again, Humberto- | | | 10-15-2008, 05:57 PM | #11 | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 | there should be no problems with the size or offset with 5mm spacers ¨ __________________ Vin Number decode and Retrofit Pdfs Available Free ! Just PM | | | 10-21-2008, 03:03 AM | #12 | Banned Join Date: Oct 2008 Location: los angeles Posts: 80 | whats the best tire size to put on 16s and 17s? im thinking 18s are too big in LA lol id blast tires by the week with the way i drive lol | | | 10-21-2008, 03:40 AM | #13 | Senior Member Join Date: Jan 2006 Location: Regensburg, Germany Posts: 584 | Quote: Originally Posted by 8thcivic whats the best tire size to put on 16s and 17s? im thinking 18s are too big in LA lol id blast tires by the week with the way i drive lol | I have 225/45/17...that seems to be the most common, but again, if you use Spidertri's link above, you can play around with them. Dude, if you're going to spend money on wheels, dont get 16s, you'll be so much happier with 17s, and theres still some tire there... __________________ Quote: Originally Posted by cooljess76 Turbos are great!...Especially the higher mileage m42's & m44's...A BUDGET setup should be good for atleast 400rwhp...I was running 60psi on stock internals and homemade parts... | | | | 10-21-2008, 05:54 AM | #14 | Banned Join Date: Oct 2008 Location: los angeles Posts: 80 | hmmm good point. i wonder why they made stock 15s. my civic has 16s...stock. is that 225 front and rear? | | | 10-21-2008, 09:26 PM | #15 | Junior Member Join Date: Oct 2008 Location: Baltimore Posts: 19 | Hey Guys, At what wheel offset does the rim stick out of the fender well for a 318ti? (ET38 mm?) Thanks, Humberto- | | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |