The following is from Miller Motorsports Park...Miller Motorsports Park and the Utah SportBike Association (USBA) announced today that the Larry H. Miller Superbike Challenge will serve as a support event to the HANNspree FIM Superbike World Championship and FIM World Supersport Championship over the weekend of May 29-31, 2009.The Larry H. Miller Superbike Challenge will be comprised of two USBA classes, GTO and GTU, each of which will have a separate 30-minute race. The USBA is planning to offer a significant purse for both races, details of which will be announced in the near future.All riders competing in these races must be AMA license-holding, Expert-level riders. The entry fee will be $200 per race. Entrants can register and obtain USBA rules and regulation at www.UtahSBA.com. Each race will be limited to 40 entries."We are very pleased to be able to add the Larry H. Miller Superbike Challenge to our HANNspree FIM Superbike World Championship weekend," said Miller Motorsports Park Director of Racing Mitch Wright. "We host the USBA Masters of the Mountains championship here each year, and those races attract the best riders from throughout the western United States and Canada. The USBA runs a tight ship and the races are always very competitive. We think our fans will enjoy this addition to our program, and might be surprised at some of the racers and teams they will find on the entry list.""It is an honor for the USBA to serve as a support event for the World Superbike weekend at Miller Motorsports Park," said Lance Lee, President of the USBA. "This is an unbelievable opportunity for our teams and racers to showcase their talent in front of some of the best teams, riders and fans in the world, and we are really looking forward to it. We appreciate the management and staff at Miller Motorsports Park for allowing us to be part of the best motorcycle racing weekend of the year in North America."The GTO race is open to motorcycles of unlimited displacement and origin, with forced induction (e.g., turbo- or super-charging) allowed only for bikes under 750cc displacement. The GTU race is open to bikes that are (a) up to 430cc, two or more cylinder, two-stroke, unlimited origin; (b) up to 550cc, two or more cylinder, two-stroke, if the frame is from a motorcycle manufactured for street use in North America; (c) up to 550cc, single-cylinder, two-stroke, unlimited origin; (d) up to 675cc, three-cylinder, four-stroke, liquid-cooled; and (e) up to 640cc, four-cylinder, liquid-cooled; (f) up to 850cc, two-cylinder, four-stroke, four or more valves per cylinder, liquid-cooled; (g) up to 900cc, three or more cylinder, four-stroke, air-cooled; (h) unlimited displacement, air-cooled, two-cylinder, four-stroke, two or three valves per cylinder; or (i) unlimited displacement, single-cylinder, four-stroke, unlimited origin. Forced induction (e.g., turbo- or super-charging) is not allowed in GTU.The HANNspree FIM Superbike World Championship returns to Miller Motorsports Park over the weekend of May 29-31, 2009, and will be joined by the FIM World Supersport Championship. Tickets for the event are on sale now at www.MMPTix.com.For information regarding Miller Motorsports Park, call 435-277-RACE (7223) or visit the track's website at www.MillerMotorsportsPark.com.