CYPRESS, Calif. – June 12, 2013 – Yamaha Motor Corp., U.S.A., has introduced a new Assembled in U.S.A. YFZ450R for the 2014 model year. This high-performance sport quad from the clear leader in the sport ATV industry boasts power gains and improved handling and is now being produced at the Yamaha Motor Manufacturing Corporation of America (YMMC) in Newnan, Georgia, for worldwide distribution.
The new race-ready YFZ450R is the highest performance, most technologically advanced sport ATV on the market combining a high-tech, quick-revving, titanium five-valve, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum-steel chassis.
All-new on the 2014 YFZ is the industry’s first assist and slipper clutch on a stock Sport ATV. This technology reduces clutch lever effort by approximately 25 percent, increases clutch plate pressure for positive engagement, reduces the engine braking effect allowing for faster cornering – particularly when downshifting – and allows the suspension to absorb bumps better during braking. All combined, this new Sport ATV technology makes for less rider fatigue especially during long motos and all-day trail rides.
For more power, the 2014 YFZ450R’s 449cc engine uses titanium five-valve cylinder head technology with new cam profiles and a newly designed exhaust system that delivers abundant power from the mid-range to the top end and provides more hit feeling right off the bottom.
The YFZ450R incorporates Yamaha’s Fuel Injection for precise fuel delivery. With a big 42mm Mikuni® throttle body and 12-hole injector, this system provides exceptional atomization of the fuel for maximum power. The system also includes Idle Speed Control (ISC) for easy, reliable start-up and warming.
The new styling and body configuration allows more space for aggressive racers to shift their weight on this highly rider-active vehicle. The seat is narrow in the front, while wide and padded in the rear with redesigned rear fenders providing the smoothest side-to-side transitions in hard, fast corners. The popular quick-release fasteners – previously only available on Special Edition models – are now standard on all YFZs and provide for no-tools installation and removal of the front and rear fenders.
The wheels have been designed with the inner lip rolled in. This increases the rigidity, allowing a reduction in weight while maintaining strength. The wheels are set for motocross-spec width at nearly 49 inches for great cornering. Its Maxxis® tires are designed to help provide excellent handling, sliding control, and traction. At 20 inches in the rear and 21 inches in the front, they provide much better ground clearance than the competition – a benefit on rough tracks and trails. The YFZ gets excellent stopping ability, from dual front hydraulic disc brakes and a lightweight wave-type rear rotor.
The YFZ450R has large diameter, aluminum tapered handlebars that reduce vibration and are mounted on four- way clamps for adjustability. There are two sets of holes in the handlebar crown and the eccentric clamps so the rider can choose the standard setting, 10mm or 20mm forward, or 10mm back.
New heel guards provide more room and are positioned closer to the chassis for a slimmer feel, while the vehicle’s foot pegs are a generous 2.6 inches wide providing grip and stability even on tough terrain.
The frame is a combination of aluminum and steel for the best balance of light weight and rigidity. The frame member under the engine is steel, used for its combination of strength and low profile. This allows the engine to sit at its lowest possible point for excellent mass centralization and unmatched handling. The aluminum frame is bolted together, rather than welded, for maximum durability.
The front frame is as narrow as possible at the A-arm mounting points. This dramatically increases the A-arm length, which reduces changes in camber as the suspension travels through its full range of motion. The new front KYB® shocks with 9.8 inches of travel and KashimaTM coating are longer for increased suspension stroke with superb bump absorption and excellent anti-bottoming characteristics. The rear swingarm with 11 inches of travel is crafted of strong, gravity-fed aluminum, and it is matched to a fully adjustable 46mm KYB® piggyback shock absorber for excellent handling.
Every 2014 YFZ450R is being manufactured exclusively in the U.S.A. at Yamaha’s factory in Newnan, Georgia, for worldwide distribution.
The 2014 YFZ450R will be available this August in Team Yamaha Blue/White and a new Blaze Orange second color option. MSRP is $8,599. A Special Edition in Crimson Red/Black graphics with dealer-installed GYTR® black front grab bar will have an MSRP of $8,949.
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