2012 NEW MOTOCROSS BIKE BUYERS GUIDE: THE 2012 SUZUKI RM-Z250 & RM-Z450


2012 RM-Z450

The RM-Z450 changes visible to the naked eye are the black fork guards and red stripe down the seat cover.

The 2012 RM-Z450 is an open-class motocross machine that’s ready to dominate the toughest of tracks. As a racer, you need quick, laser-accurate steering and confidence-inspiring high-speed handling all in one package. And you want a high performance machine with a racing pedigree that makes it competitive right out of the crate. The RM-Z450 has been taking champions across the finish line ahead of the pack for years, fiercely competing across the globe from the World MX1 series to America’s prestigious AMA Supercross and outdoor motocross championships. It’s no secret that Champions Choose Suzuki!

KEY 2012 RM-Z450 FEATURES

    The RM-Z450 meets a stricter AMA noise limit (94 dB) while keeping smooth engine output.
    
    Suzuki’s class-leading fuel-injection system uses technology derived from Suzuki’s championship-winning models. The RM-Z450, the first motocross bike to ever use fuel injection, has won both outdoor championships as well as a Supercross championship.

    The RM-Z450’s 449cc four-stroke, liquid-cooled, DOHC, four-valve, fuel-injected engine was developed and refined to deliver phenomenal idle-to-redline thrust.
    
    The lightweight, battery-less, motocross-use electronic fuel injection system uses progressive throttle linkage for efficient power delivery.
    
    A 12-hole fuel injector delivers a fine fuel/air mist for efficient operation.
    
    The RM-Z450’s aluminum cylinder is treated with Suzuki Composite Electrochemical Material (SCEM) coating, and was built for durability, light weight and efficient heat transfer.

    A 5-speed transmission provides extra flexibility, offering gear ratios suited for various terrains and conditions.
    
    The RM-Z450 has a link-type shifting system, which offers smooth transitions through the gears.

    The RM-Z450’s slim chassis design makes for a comfortable riding position, opening up the cockpit to help allow the rider to actively take control of the machine.
    
    Class-leading 47mm Showa inverted forks provide optimum wheel travel and are compression- and rebound-damping adjustable.
    
    A Showa piggyback-reservoir rear shock with high/low-speed compression damping adjustment and rebound damping and spring preload adjustments. The rear shock, working through Suzuki’s superlative rising-rate linkage system, provides 310mm of wheel travel, delivering maximum traction.
    
    The RM-Z450’s twin-spar aluminum frame and swingarm was developed and refined for a highly optimized balance between rigidity and superb high-speed traction. The lightweight swingarm helps enhance terrain-traversing performance over bumps.
    
    Race-inspired disc rotors offer enhanced cooling performance and efficient mud slinging.
    
    A stylish two-tone radiator shrouds accentuate the RM-Z450’s agile looks.
    
    The RM-Z450 comes with a gripper seat, with projected cross-shaped patterns on the top surface to provide additional grip.

2012 RM-Z250

AMA-dominating Suzuki racing technology is everywhere you look on the 2012 RM-Z250: the 249cc engine springs to life with advanced Suzuki fuel injection. Combine that power with the twin-spar aluminum frame and class-leading Showa suspension components and you’ve got the perfect weapon for motocross racers worldwide. Just look at that slim, aggressive styling that makes the RM-Z250 the machine to watch wherever you race.

KEY 2012 RM-Z250 FEATURES

    New graphics complete the 2012 package. In addition, the number plates have a black background to conform to rules for competition numbers.
    
    For 2012, the RM-Z250 meets stricter AMA noise limit (94db) while keeping smooth engine output.
Engine Features

    The RM-Z is powered by a compact and lightweight 249cc, fuel-injected, DOHC, titanium four-valve, semi-dry-sump, four-stroke engine. Its advanced, battery-less fuel-injection (FI) system, features a 44mm throttle body with progressive throttle linkage and a 16-bit computer.
    
    The FI system uses a unique capacitor-assisted starting system, and is powered by a durable, lightweight magneto-generator after starting.
    
    The engine’s aluminum cylinder is treated with Suzuki Composite Electrochemical Material (SCEM) coating. The cylinder is built for durability, is light weight and the coating allows for efficient heat transfer.
    
    A sturdy connecting rod and mirror finishing permits a stunning 13,500-rpm maximum engine speed.

    A 5-speed transmission provides extra flexibility, offering gear ratios suited for various terrains and conditions.

    Inverted twin chamber Showa 47mm forks and Showa piggyback shock designed with emphasis on smooth shock absorption and ample bottoming resistance. Tuned to offer superb handling for a wide range of riders, the suspension delivers excellent traction without sacrificing quick-turning ability.
    
    The RM-Z250 features a twin-spar aluminum frame and aluminum swingarm developed and refined for a highly optimized balance between rigidity and superb high-speed traction.
    
    Smart chassis design details include footpeg brackets shaped to help prevent mud from clogging.
    
    Radiator louvers (for the twin side-mounted aluminum-alloy radiators) are joined to the outer bodywork to add strength without adding weight.
    
    Race-inspired brake disc rotors offer enhanced cooling performance and efficient mud slinging.
    
    High-quality Renthal handlebars featuring a tapered design are fixed to the rubber mounted triple clamp.
    
    A gripper seat, with projected cross-shaped patterns on the top surface, provide additional grip.

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