2021年5月11日 · The Pros and Cons of Run-Flat Tires on your BMW Run-flat tires work by adding extra-stiff sidewalls to the design of the tire. So, if the tire loses all of its air pressure, the tire is able to support the vehicle and drive safely for up 50 miles at 50 miles per hour (depending on the tire, so check your paperwork).

2022年3月2日 · I agree that run-flats change the feel, but BMW also changed other parameters over the years. My 2015 Xdrive: 18” run-flat 32/35 psi MSport suspension (probably same as stock 328i) Used Continental twice, then Bridgestone run-flat my 2021 M340i Xdrive 19” run-flat 38/41 psi M340i stock suspension Pirelli P7 run-flat

2013年2月6日 · Tried to get regular tires on run flat rims. Shops here would not install because they said make up of rim specialized to run flat tires. They say that tire might seperate from rim at high speed. Bought new rims and Bridgestone's 760 RE sports. Sent from BimmerApp mobile app

2016年12月5日 · They were the only run-flat all-season tire at TireRack that carried a speed rating (W) higher than 155 mph (car is a Sportline with the increased top speed limiter). Just took delivery of a 2017 340i xDrive with staggered 18" wheels and increased top speed limiter.

2014年12月1日 · I thought I would share some information with you. I just put a new set of Bridgestone Drive Guard Run Flats on my 4 door Sportline (225/45 R18 W). My factory installed Continental ContiSport Contact 5's were worn out at about 12-13K miles. I pushed them another 3-4K to 16K miles. But, the rear tires were bald and showing some cord in the center.

2024年5月27日 · Your all-season and run-flat requirements severely limit your choices. My 2014 535i came with the Goodyear LS-2s and they were horrible. They wore more on the sides than in the middle. Normally that's caused by under inflation, but not in my case. I kept plenty of pressure in them. A friend at BMWoB said everybody was having the same problem them.

Concerning message #35 above, these same concerns about run-flat tires have kept me from buying another 3 series. As I have noted on other forums before, the run-flats save BMW money in that they need to provide only four wheel/rim combinations instead …

2020年4月3日 · This isn't a complaint about run flat tires. The Duelers serve a purpose. They run flat. They are hard though and noisy when tread starts to dwindle. I don't think you read the whole post. Either way. Opinions are what this forum is for. A 12 year old X5 is no longer a luxury car but it maintains the performance.

2020年1月14日 · I ordered Frau Putzer's 2018 X3 xDrive 30i with 19", all-season, non-run-flat tires (non-RFT's). The door jamb decal recommends 32 PSI front, and 35 PSI rear for speeds under 100 MPH. As a first guess, I set the pressures to two PSI over the decal pressures (34 PSI front, 37 PSI rear).

2018年2月10日 · Please advise your opinion on Run flat tires vs non-run flat tires. If I make a build order with NON run flat tires (default) option, there is no spare tires ($150) included. However, if I include the run flat tires option in the build, the system by default includes the spare tires ($150). By the way, I am planning to order a standard X3 ...