AKRON (Oct. 6, 2005) — The 2006 Jeep Grand Cherokee SRT8—touted to be the quickest, most powerful Jeep ever built—will roll into showrooms early next year on 20-inch Goodyear Eagle RSA run-flats, the largest run-flat tire available in the market.
The Grand Cherokee SRT8 features a 6.1-liter Hemi V8 putting out 415 horsepower and running through a beefed-up full-time four-wheel-drive system, according to DaimlerChrysler A.G. data. The vehicle should accelerate 0-60 mph in less than 5 seconds and 0-100-0 mph in the low 19-second range and stop 60-0 mph in approximately 125 feet.
The new vehicle comes standard with W-speed-rated Goodyear run-flats—255/45/20 in the front and 285/40/20 in the rear—on specially designed five-spoke aluminum rims. The vehicle has no spare tire and no place reserved for one, DaimlerChrysler said. It comes standard with a tire pressure monitoring system.
While technically this qualifies as a run-flat fitment on a sport-utility vehicle (SUV), it does not mean Goodyear has engineered run-flat light truck/SUV tires.
The vehicle loads and performance demands of the LT/SUV sector will require a run-flat solution other than provided by current car run-flat technology, according to Bill Hopkins, Goodyear's vice president of product marketing and technology planning.
Designing a run-flat for light trucks/SUVs is one of the goals of Goodyear's research and design cooperation with Group Michelin, he said during a presentation Oct. 5 at Goodyear's Technical Center in Akron.
Goodyear is on target to make 2 million run-flats this year, double that produced in 2004. Mr. Hopkins said it took Goodyear 10 years, from 1993-2003, to reach the 1 million mark in run-flats produced, and then just one year to make the second million.
The firm has 80 original equipment run-flat fitments globally and more than 100 additional fitments under evaluation, he said.