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BMW Z4 Tires and Wheels

56 messages,  Last post on Apr 08, 2009 at 1:08 PM

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#49 of 56 Yokohama tires by jamie15 Jul 12, 2008 (9:25 am)
I know about as much aobut tires as Bev. Can you give more specs as to the Yokohoma tire and where I find them?
#50 of 56 winter tires by smyrnamed Oct 15, 2008 (6:15 am)
asking for help for z4 winter tires. live in dover delaware and still undecided if i am to get winter tires or change my tires to all season drive a 3.0 sport so clearance sometimes could be an issue but snow here in delaware not as bad Replies to this message: esfoad (Oct 20, 2008 4:24 pm) smyrnamed (Oct 21, 2008 8:59 am) 2buffalo (Dec 01, 2008 12:11 pm) esfoad (Dec 22, 2008 9:48 am)
#51 of 56 Re: winter tires [smyrnamed] by esfoad Oct 20, 2008 (4:24 pm)
Replying to: smyrnamed (Oct 15, 2008 6:15 am) I'm in NJ. Probably a little more snow than you. I recommend winter tires over all season tires. I got a set from Tire Rack with rims for a great price and the feeling of security is worth the money. Also, these cars are light and rear drive so even a little snow or ice will affect them badly. Here in northern NJ, last year the car handled perfectly and the tires were not noisy at all. Replies to this message: smyrnamed (Oct 21, 2008 8:59 am) 2buffalo (Dec 01, 2008 12:11 pm) esfoad (Dec 22, 2008 9:48 am)
#52 of 56 Re: winter tires [esfoad] by smyrnamed Oct 21, 2008 (8:59 am)
Replying to: esfoad (Oct 20, 2008 4:24 pm) thanks for the help will go ahead and order a set from tire rack
#53 of 56 Re: winter tires [esfoad] by 2buffalo Dec 01, 2008 (12:11 pm)
Replying to: esfoad (Oct 20, 2008 4:24 pm) Wondering what model Z4 you're driving and what snows/rims you bought. I have 3.0 with sport package and I'm concerned about clearance issues. Thanks. Replies to this message: esfoad (Dec 22, 2008 9:48 am)
#54 of 56 Re: winter tires [2buffalo] by esfoad Dec 22, 2008 (9:48 am)
Replying to: 2buffalo (Dec 01, 2008 12:11 pm) Sorry for the late reply. I have a 3.0Si non sport package. I bought the recommended size from Tirerack including the TPMS sensors. I believe they are 205/55/17's.
#55 of 56 Run flat tires by candy9 Mar 29, 2009 (6:17 am)
Just purchased a Z4 and need help understanding the run flat tires that came on vehicle. Do I understand correctly that there is a tire made by Yokohoma that is a run flat that gives you longer wear, or is it a tire that you can use to replace run flats. If I replace my tires with non run flats will this void my warranty, or cause stress on the rims in any way? Thanks for any help you can provide. Replies to this message: markwell (Apr 08, 2009 1:08 pm)
#56 of 56 Re: Run flat tires [candy9] by markwell Apr 08, 2009 (1:08 pm)
Replying to: candy9 (Mar 29, 2009 6:17 am) 1. No. You won't void your warranty by using non-run flat tires. What's more, your low tire pressure warning will work with non-run flat tires too because it is based on a change between the rate the wheel spins compared to the speed of the other wheels. The wheel of a tire that is getting low on air pressure spins at a different rate. Bingo, low pressure warning still works.   2. Depending on if you have BMW install your non-run flat tires, or Joe Schmoe's Tire Shop, will depend determine to a large degree if your rims get scratched when the new tires are put on the rim. BMW service shops have a special tire machine and/or they take far better care (generally) when replacing your old tires with new and are much less likely to scratch your rims (so I was told).   3. The BMW factory Run Flats are the finest match for road grip - bar none. The down side? They only go about 20,000 miles before you start experiencing a lot of tire leaks and then losing your grip on acceleration or wet roads. If you try to drive on summer tires when the temps dip much below 37 F or especially 32 F (freezing), your car will drive as if possessed in the movie 'The Exorcist' until they warm up in 5-10 minutes (which accelerates wear on the tires - lord only knows what it does for wear on the suspension and steering linkages). I'm talking about the end of the world violent shaking of the steering wheel at any speeds over 10-25 mph. Perhaps she smooths right out at speeds over 100 mph, but I never wanted to test it - I never got over 35 mph like that (lol).     I bought a pair of non-run flats after 32,000 miles on my Factory Equipped run-flats (and they should have been replaced around 22,000 miles). But the non-run flats have about 95% of the grip on dry roads, twice the grip on wet roads and double the service life. I have 25,000 miles on my non run flats and not one single tire leak (knock on wood). I'm just getting ready to rotate them for the next 25,000 miles. Plus, they are all season radials and they go in snow (unlike the orginal BWM summer tires). I absolutely love them.   My advice, wait until you really need a new set of tires before making the switch to non-run flat. When you do, you will never look back. (oh, did I mention I got the entire set for $400 and mounted for $10/tire!). I can't tell you what a pain in the butt it was putting air in the run flat tires every few days, then using flat fix to get me through another few months. Plus, you get to laugh at the service rep at your 15,000 mile service interval that trys to sell you "Nitrogen Air Fill" for your tires to stop the likelihood of slow leaks. Since changing to non-run flats, I haven't had a single slow leak, a single problem and will never go back again. (half the price and zero of the worries - teehee)   Okay, again - if you keep "your baby" in the garage 9 months of the year and only take it out on Sundays and wipe it with a diaper - stick with the Run Flats. But if you are in the snow and ice belt and want to drive your car year round - go with non-run flat all season radials. I still take curves at twice the "suggested" limit and never have a problem (knock on wood).

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