2010 Suzuki RM-Z250Championship winning performance…..ready for you today.
Suzuki races to win, period. And, thanks to the hard work of Ryan Dungey in the U.S., the RM-Z250 is the AMA Supercross Lites West Coast Champion for 2009. But winning goes beyond the champagne. For the 2010 RM-Z250, Suzuki applied lessons learned on the track to turn up the speed, handling and confidence you’ll get racing every day, anywhere in the world.Suzuki racing technology is everywhere you look: advanced Suzuki fuel injection is fitted for the first time on a four-stroke 250cm3 Suzuki motocross machine. Further engine modifications boost peak power without giving up any of the low-end or midrange that has made the RM-Z250 the choice of top riders everywhere. Chassis updates improve handling with key suspension upgrades making the new RM-Z250 the perfect weapon for motocross racers worldwide. And there’s the eye-catching slim, aggressive styling that causes the RM-Z250 to stand out at any track.Think of the 2010 RM-Z250 as the perfect racing package.Championship winning performance, now improved beyond the reach of the competition.Fuel Injection
Derived from the pacesetting RM-Z450′s superlative system, the RM-Z250′s battery-less injection features a 43mm throttle body with progressive throttle linkage, a 16-bit computer and unique capacitor-assisted starting system. A durable, lightweight magneto-generator powers the fuel injection after starting. Because all engine systems are related in performance, a new muffler is fitted to optimize the benefits of fuel injection.Power at the Top
Engine modifications for the RM-Z250 maintain its impressive low-to-midrange power but add a thrilling high-rpm rush to the mix-precisely what expert-level riders want in a potent 4-stroke racing engine. Revised cam timing works in conjunction with updated intake ports to boost power and torque at the top of the power band. A new, stronger connecting rod and mirror finishing permits maximum engine speed increased to a stunning 13,500 rpm. Crankshaft modifications similar in spec to the championship-winning RM-Z450 increase rigidity and strength. The 249cm3 engine continues to use a DOHC, 4-valve head design with lightweight titanium valves riding in an advanced pent-roof cylinder head and semi-dry-sump lubrication system reduces internal friction. With a top-end rush like no other, the RM-Z250′s engine has to be experienced to be believed.Chassis Updates
In the search for handling perfection, the RM-Z250′s twin-spar aluminum alloy frame has been redesigned with several key components to optimize rigidity balance and improve traction at high speed. The lower frame tube has thicker walls, 3.0mm versus 2.5mm, while the side rails are slightly shallower. Connecting the 19-inch rear wheel and the lightweight chassis is a new swingarm with an improved center brace for increased rigidity that also more concentrates its mass for enhanced suspension action and greater traction. To prove that Suzuki understands the importance of details, new footrest brackets are designed to prevent mud clogging.High-Performance Suspension, Updated
Thoroughly revised spring and damping rates inside the inverted Showa 47mm fork and piggyback single shock result in improved handling for a wide range of riders. Carefully chosen modifications improve traction and rider confidence at high speed without sacrificing the RM-Z’s legendary quick-turning ability. Modifications to the rear suspension linkage that reduce thrust backlash also improve traction and make for more consistent performance.Radiator Louvers
Improved radiator louvers direct more cooling air to the twin side-mounted aluminum alloy radiators for lower engine temperatures. They are joined to the outer bodywork for increased strength without adding weight.Color Coded
For 2010, the RM-Z250′s number plates have a black background to conform to rules for competition numbers. It’s one less thing to worry about so racers can concentrate on winning.Continue to page 3 for a look at the 2010 Suzuki RM-Z450.
2010 Suzuki RM-Z450 A racing legend, improved
Two years ago, Suzuki stunned the world with the first fuel-injected motocross racebike. It was more than unique…it was a winner. Around the globe, the RM-Z450 helped racers collect wins and trophies, fiercely competing in venues from the World MX1 series to America’s AMA Supercross championship.Now the question: Is there any way to improve on this incredible success? Sure there is. But you have to be Suzuki to do it.Take a close look at the 2010 RM-Z450, a thoroughly updated, cutting-edge open-class motocrosser that’s more potent than ever. Across-the-board engine upgrades boost power from awesome to awe-inspiring. Detailed frame and suspension modifications improve an already sharp-turning racebike. As a racer, you want quick, laser-accurate steering and confidence-inspiring high-speed handling in one package. And you want a high performance machine whose racing pedigree enables it to be competitive right out of the crate? Here is Suzuki’s answer!When Suzuki introduced the first fuel-injected motocrosser in history, it jumped way ahead of the pack.With the new 2010 RM-Z450, your competitive advantage just got that much bigger.Powered Up!
Suzuki’s engineers have carefully developed the RM-Z450′s powerful 449cm3, DOHC, 4-valve engine to increase power throughout the rev range. Always known for its incredible midrange grunt, the 2010 RM-Z450 also has arm-stretching high-rpm power. A combination of revised cam profiles and reworked cylinder-head porting give the RM-Z450 amazing idle-to-redline thrust. An improved camchain tensioner provides more consistent performance. Also a modified throttle linkage makes the low-speed response more progressive. How’s that? More power and better manners.Fuel Injection, Pioneered and Improved
For 2010, the RM-Z450′s electronic fuel injection is improved with a reversed throttle valve movement. Such a simple alteration pays handsomely: The fine fuel-air mist from the 12-hole fuel injector is directed away from the throttle valve for a more uniform mixture producing increased power and enhanced throttle response.Chassis Dynamic
Everywhere you look, the RM-Z450′s twin-spar aluminum alloy frame has received detail improvements to optimize rigidity balance. It starts with the head stock, which is now a two-piece design that’s 9mm taller than before. Further back, the sections at the rear of the frame, which are made up of extruded and cast members, are now wider for increased rigidity. More strength comes from a wider upper frame bridge beneath the saddle, while material wall thickness was strategically designed to save weight.High-Quality Showa Suspension
The RM-Z450 employs race-bred, state-of-the-art Showa suspension front and rear. For 2010, both ends of the bike are given suitably revised spring and damping rates-the new rates work together with the chassis’ optimized rigidity balance to improve handling. 47mm inverted forks provide optimum wheel travel and can be adjusted for compression as well as rebound damping for maximum rider adjustability. A Showa piggyback reservoir rear shock offers both high- and low-speed compression damping adjustment along with rebound damping and spring preload adjustments. Working through Suzuki’s superlative rising-rate linkage system-now with revised link-bearing tolerances for precise handling performance-the shock provides 310mm of wheel travel delivering maximum traction.