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Run Flat Tires: Why You Should, or Shouldn’t, Buy Them
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Maybe you’ve been in this situation: stuck on the side of a road, a punctured needing to be changed out for the spare one in the trunk. You have a pair of options, do you choose to change the tire yourself, or do you call for roadside assistance. Both options can take a while to get you back on the road, especially if you’ve never changed a tire yourself before. And even if you have, sometimes it can take some serious elbow grease.
It’s dilemmas like these that have more car makers offering run flat tires on new cars. Run flats can run for at least 50 additional miles following a puncture, giving you the ability to safely get home, or exit a highway and find a repair shop.
What are Run Flat Tires?
Even though changing a tire is an important skill, the idea of run flat tires sounds pretty handy. The added benefit of losing the weight of a spare tire and tools could help with fuel efficiency too.
There are two main types of run flat tires: Self-Supporting, and Auxiliary Supported. Self-Supporting tires have stiffer and tougher rubber, which can temporarily carry the weight of the vehicle under lower tire pressure. If you do get Self-Supporting tires (see right) you will need a tire pressure monitoring system (which is now government mandated standard equipment on new cars), because a driver may not notice their tire has lost pressure without it. Auxiliary supported tires don’t have stiffer and tougher rubber, but are attached to a special rim which has a steel support ring that is attached to the wheel and can support the weight of the vehicle.
Even though run flat tires have been around in production vehicles since 1994, the adoption as a mainstream replacement for conventional tires has been slow for many reasons. Sheri Hermann, Communication Coordinator from Continental Tire tells us “run flat tires provide convenience to a consumer, but conventional tires are typically lower in cost and have better ride qualities.”
Another top complaint is in regards to price. On average, run flat tires are about one third more expensive than regular tires.
That’s not the only complaint though. While the reduced weight of carrying around a spare might seem like an advantage, run flat tires also have an impact on your fuel economy. Thanks to the tires being heavier and thicker they can reduce fuel economy by 1-2%. Also, due to the stiffer and heavier design, the run flat doesn’t quite perform like its price would indicate. They can often be harsh on the road and don’t provide a lot of grip in low temperatures.
Lastly, when you do get a puncture, or lose tire pressure, it’s not quite as easy to get them repaired. While some run flat tires can be repaired, they need to spend some time off the rim, and need to be inspected to ensure they can be fixed. If they can’t, it’s time to buy new tires. Conversely, most punctures on a conventional tire can be fixed with a simple repair kit that costs just a few dollars.
Despite these obstacles and concerns, run flat tires are increasingly becoming standard equipment on new cars and the reasons are simple: safety and peace of mind. Not only do run flats ease concerns, but they make a vehicle easier to control in the case of a tire blow out.
Why Are Automakers using them?
Monty Roberts from Product and Technology communications tells us that run flat tires are standard on most BMW models with the exception of some BMW M Models. He said specifically that run flat tires have several advantages and that they “Support BMW’s EfficientDynamics Strategy by eliminating the extra weight of the spare tire, jack and tools in the vehicle for better balance, dynamic handling and fuel efficiency.”
When asked about the criticism of run flat tires Roberts said “run flat tires by their design do have stiffer sidewalls than conventional tires, however, all current BMW models that use run flat tires have suspensions that were significantly developed for use with this technology.” He added “These suspensions have been developed and tuned for the best possible ride comfort. The safety benefits of run flat tires are so significant as to outweigh any possible trade-offs.”
When asked if owners could or should swap out their run flats either when a replacement tire is needed or because they’re looking for added performance, Roberts was unequivocal. “We do not recommend replacing run flat tires with conventional tires,” he said, “that deviates away from the original design, safety and suspension calibration technology that the run flats were originally designed for.”
What are customers saying?
Even with tougher rubber, run flat tires do wear out quicker than regular tires. Many owners on the
complained that they were replacing their OEM run-flat tires within 20,000 miles. This prompted a lawsuit, which was settled by BMW and Bridgestone. Members of the settlement will receive a full refund for the purchase of replacement tires if they were needed before 10,000 miles. If replacement occurred between 10,000 miles up through 30,000 miles, reimbursement will be 50 percent or less. If buyers are experiencing wear at around 20,000 miles, that’s less than half the life of an ordinary tire.
Customers though, haven’t responded well to these types of tires. has stopped offering the tires on its vehicles after settling a class action lawsuit last year. The owners of RL, and Honda Odysseys claimed unreasonable tire life and unexpectedly high replacement costs.
Run flat tires may have their advantages, but it still seems like their many compromises are stopping the equipment from taking off. BMW and vehicles get them as standard equipment, and owners (especially enthusiasts) are not happy with them. Vanessa Terrier from Bridgestone’s Communications team mentioned that “As of today, the run flat tire market is mainly driven by car manufacturers and original equipment.”
If you’re afraid, or uncomfortable with the idea of replacing a punctured tire with a spare, then the run flat tires are made just for you, but beware of the added costs of ownership. And if you’re convinced that the disadvantages outweigh the benefits, be weary of cars that come equipped with them from the factory, as a non-run flat replacement tire that was never designed for the car might bring with it unique disadvantages.
See Page 2 for more tire news including a list of best tires to buy
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SWEEPSTAKES – OFFICIAL RULES, TERMS AND CONDITIONS
<’s Continental Control Sport Tires Giveaway – By subscribing to
Newsletter, Entrants are eligible to win four (4) Continental ControlContact Sport AS Tires, or four (4) Continental Control/Contact Tour AS Tires, sponsored by Discount Tire (value of $900.00 USD). One (1) winner will be chosen at random and contacted by VerticalScope Inc.’s staff.
NO PURCHASE OR PAYMENT OF ANY KIND IS NECESSARY TO ENTER OR WIN THIS SWEEPSTAKES. AGE/RESIDENCY RESTRICTIONS, VOID WHERE PROHIBITED.
PRIZE:One (1) Winner will be randomly selected to each receive:four (4) Continental ControlContact Sport AS Tires, or four (4) Continental Control/Contact Tour AS Tires from Discount Tire (the “Prize Supplier”). Total approximate retail value of all prizes is approximately $900.00 USD. Prizes are not transferable and no cash or prize substitution is allowed. Prize package is awarded “as is” with no warranty or guarantee, either express or implied.
ELIGIBILITY: From the time of entry through the final date of prize fulfillment, each contest entrant and selected entrant must be a permanent lawful citizen and resident residing in the 50 United States or the District of Columbia, and be twenty one (21) years of age or older.VOID IN PUERTO RICO, THE U.S. VIRGIN ISLANDS, IN ALL FOREIGN COUNTRIES OUTSIDE OF THE UNITED STATES, AND ALL OTHER U.S. TERRITORIES AND POSSESSIONS AND WHERE PROHIBITED OR RESTRICTED BY LAW.&Employees, officers, directors, agents and representatives, of the Sponsor and the Prize Supplier and each of their respective parent companies, affiliates, subsidiaries, advertising and promotion agencies, promotion partners and any entity involved in the development, production, &implementation, administration or fulfillment of this Sweepstakes, and the immediate family members (e.g., spouse, mother, father, sister, brother, uncle, aunt, nephew, niece, grandparent, in-law, daughter and son, regardless of where they live) and persons living in the same household (whether or not related) of such individuals are not eligible to participate or win. Only one selected entrant per household. All decisions of the Sponsor with respect to this sweepstakes are final. The Sponsor shall have the right at any time to require proof of identity and failure to provide such proof may result in disqualification from the Sweepstakes.
ENTER BY INTERNET:Beginning on Monday, August 1st, 2016, you may enter this sweepstakes via the Internet by logging
and subscribing to the Newsletter.
SELECTION OF WINNER:One (1) entrant will be selected on or about August 13th, 2016 by random selection of entrants who have subscribed to
Newsletter. The winner will be contacted directly by a representative of Sponsor via email. The winner will be required to provide a mailing address (that is not a P.O. box) to receive the prize which will be shipped free of charge.
ODDS OF WINNING:Odds of winning a prize are determined by the total number of eligible entries received.
RESTRICTIONS:The prize package consists of four (4) Continental ControlContact Sport AS Tires, or four (4) Continental Control/Contact Tour AS Tires from Discount Tire approximately valued at $900.00 USD.& If prize cannot be awarded due to circumstances beyond the control of the Sponsor or Prize Supplier, no substitute prize will be awarded due to the unique nature of the prize. Sponsor and Prize Supplier shall not be liable to the winner or any person claiming through winner for failure to supply the prize or any part thereof, by reason of any acts of God, any action(s), regulation(s), order(s) or request(s) by any governmental or quasi-governmental entity (whether or not the action(s), regulations(s), order(s) or request(s) prove(s) to be invalid), equipment failure, utility failure, internet failure, terrorist acts, threatened terrorist acts, air raid, blackout, act of public enemy, earthquake, war (declared or undeclared), fire, flood, epidemic, explosion, unusually severe weather, hurricane, embargo, labor dispute or strike (whether legal or illegal) labor or material shortage, transportation interruption of any kind, work slow-down, civil disturbance, insurrection, riot, or any other cause beyond Sponsor’s or Prize Supplier’s control (collectively, “Force Majeure Event”). Sponsor shall not be responsible for any cancellations, delays, diversions or substitutions or any act or omissions whatsoever by the performers/events, other transportation companies or any other persons providing any of these services and accommodations to passengers including any results thereof such as changes in services or accommodations necessitated by same.
CONDITIONS:By entering the Sweepstakes, entrants agree to be bound by the Official Rules, Terms and Conditions and that Sponsor has the irrevocable right to use in perpetuity entrants’ names, user names, likenesses, photographs, voices, home mailing address, biographical and prize information, and entry materials, without notice to entrants and without compensation or obligation, in any and all media now or hereafter known throughout the world, in any manner whatsoever, to advertise and promote Sponsor, its products and services, the Sweepstakes, and for any other purpose except where prohibited by law. Entrant waives the right to assert as a cost of winning a prize any and all costs of verification and redemption or travel to redeem said prize and any liability which might arise from redeeming or seeking to redeem said prize. Sponsor is not responsible for fraudulent calls or emails made to entrants not by the Sponsor. If the Sweepstakes is not capable of running as planned by reason of damage by computer viruses, worms or bugs, tampering, unauthorized intervention, fraud, technical limitations or failures, any Force Majeure Event or any other cause which, in the sole opinion of Sponsor, could corrupt, compromise, undermine or otherwise affect the administration, security, fairness, integrity, viability or proper conduct of the Sweepstakes, Sponsor reserves the right, in its sole and absolute discretion, to cancel, terminate, modify or suspend all or any part of the Sweepstakes, and to select a winner from among all eligible entries received by Sponsor up until the time of such cancellation, termination, modification or suspension, as applicable. Sponsor reserves the right in its sole discretion to disqualify any individual that (i) tampers or attempts to tamper with the entry process or the operations of this Sweepstakes in any manner, (ii) violates the Official Rules, Terms and Conditions or (iii) acts in an unsportsmanlike or disruptive manner, or with intent to annoy, abuse, threaten or harass any other person. CAUTION: ANY ATTEMPT BY AN ENTRANT OR ANY OTHER INDIVIDUAL TO DELIBERATELY DAMAGE OR UNDERMINE THE LEGITIMATE OPERATION OF THIS SWEEPSTAKES IS A VIOLATION OF CRIMINAL AND CIVIL LAWS. SHOULD SUCH AN ATTEMPT BE MADE, SPONSOR RESERVES THE RIGHT TO SEEK CIVIL AND/OR CRIMINAL PROSECUTION AND/OR DAMAGES FROM ANY SUCH PERSON TO THE FULLEST EXTENT PERMITTED BY LAW. Any expenses and receipt and use of the prize and federal, state and local taxes and fees applicable in connection with the prize awarded are the sole responsibility of the winner. An IRS Form 1099 will be issued in the name of the winner for the actual value of the prize received. This Sweepstakes is subject to all federal, state and local laws of the United States.VOID WHERE PROHIBITED.&Sponsor, Prize Supplier, and their respective officers, directors, parent companies, affiliates, subsidiaries and advertising and promotion agencies, employees, representatives and agents are not responsible for and shall not be liable for (i) any injuries, losses or damages of any kind caused by a prize resulting from acceptance, possession or usage of the prize, or (ii) printing, distribution or production errors. Sponsor or its affiliates may rescind any promotion found to contain such errors without liability at its or their sole discretion.
SPONSOR:The Sponsor of this contest is VerticalScope Inc. (the owner and operator ), 111 Peter Street, Suite 700, Toronto, Ontario, M5V 2H1.
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(Adam Cole/WNYC)
Our world is saturated in color, from soft hues to violent stains. How does something so intangible pack such a visceral punch? This hour, in the name of science and poetry, Jad and Robert tear the rainbow to pieces.
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