Features

Engine Features

The trail is no place to wear yourself out kick-starting a bike, so the RMX450Z comes with an electric starter, energized by a compact battery centrally located to reduce its influence on weight distribution and balance of the bike. To charge the battery and power the RMX450Z's lights, a larger magneto-generator is fitted. It's a win-win situation.

Suzuki pioneered fuel injection for motocrossers, and the RMX450Z shares all key technologies with the stunning RM-Z450. Fuel injection improves fuel efficiency, throttle response and reduces emissions, allowing the RMX450Z to be “green sticker” eligible in the state of California. On the every trail in the world, the RMX450Z’s fuel injection provides unmatched smoothness of power delivery and trail-ready reliability thanks to a KEIHIN throttle body with progressive linkage. This advanced fuel injection system also eliminates the need for re-jetting at higher elevations. To best suit the RMX450Z to life on the trail, the airbox features a hinged lid for quick air-filter maintenance and better protection from dust. Suzuki’s vast experience with motorcycle fuel injection both on and off-road help make this among the best systems available.

Suzuki has made minimal modifications to the all-conquering RM-Z450's potent four-valve, DOHC engine for the RMX450Z. This lightweight engine now features a modified inlet tract along with revised cam profiles to increase low and mid-rpm power. Wider gear ratios in the 5-speed constant-mesh transmission that work with revised primary and final-drive ratios are ideally suited for a broad range of conditions, from scaling steep trails to high-speed open-terrain riding. The addition of a coolant reservoir tank increases on-trail reliability, while a relocated filler cap improves access. Because the trail can be a rocky place, a new engine protector plate is fitted. No stone was left unturned.

Intake port angle and cam timing result in reduced intake resistance and heightened intake efficiency. Exhaust port and cam timing are designed to regulate exhaust pulses for maximum engine performance

KEIHIN fuel pump located inside the fuel tank provides stable pressure delivery to operate the fuel injection system

Semi-dry-sump lubrication system features separate oil chambers for the transmission and crankshaft using the transmission as the oil sump, allowing low crankshaft placement, reduced engine height and a low center of gravity

Chassis Features

Suzuki has made minimal modifications to the all-conquering RM-Z450's potent four-valve, DOHC engine for the RMX450Z. This lightweight engine now features a modified inlet tract along with revised cam profiles to increase low and mid-rpm power. Wider gear ratios in the 5-speed constant-mesh transmission that work with revised primary and final-drive ratios are ideally suited for a broad range of conditions, from scaling steep trails to high-speed open-terrain riding. The addition of a coolant reservoir tank increases on-trail reliability, while a relocated filler cap improves access. Because the trail can be a rocky place, a new engine protector plate is fitted. No stone was left unturned.

Sit on an RM-Z450. Now go sit on the new RMX450Z. Feels just about the same, right? That's right. With an ideal riding position resulting from the motocross-developed seat, slim bodywork and low-profile aluminum alloy fuel tank, the RMX450Z allows the rider to concentrate on the terrain. A comfortable rider is a fast rider.

A durable, ultra-compact enclosure houses a full-function instrument cluster on the RMX450Z—and can be configured for two modes, standard and sport . The sport mode simplifies the display so the rider can concentrate on terrain; it shows the timer, tripmeter, average speed and tire-diameter correction. In the standard mode, the display also shows speed, time, two trip lengths, and voltage. An integrated tire diameter calculator allows precise fine tuning for different tires to ensure accuracy of the speed and distance displays. The RMX450Z also features a low fuel level warning light for confident off-road riding anywhere you go.

Suzuki's light and effective aluminum alloy twin-spar frame construction is used in the RMX450Z, employing both cast and extruded sections for the utmost benefits of both: low weight, high rigidity, and high durability. The RMX450Z's aluminum alloy swingarm is derived from the RM-Z450's to maintain ideal balance, while the rear suspension linkage benefits from reduced free play. Its geometry combines the RM series' renowned turning-on-rails abilities with optimized handling performance that all serious trail riders want.

Derived from the RM-Z450, the RMX450Z's trail ready suspension features the same phenomenal action as the race bike. The RMX450Z suspension utilizes high performance rebound and compression damping adjustable Showa forks combined with a Showa piggyback reservoir style rear shock featuring two-way adjustable compression damping with adjustable rebound damping and preload adjustments. Spring rates have been optimized for off-road riding. Every aspect of the RMX450Z's performance envelope has been carefully considered for serious off-road riding without compromising a millimeter of quality.

Footpegs include maximum clearance between the mounting bracket and footrest to prevent mud from caking up

Hot start lever is located on the right hand side of the handlebar for easy operation while holding the clutch

Race inspired brake rotors provide better cooling performance and increased mud deflection in muddy conditions

Showa cartridge-style front fork is fully adjustable for rebound, compression and preload settings and designed for reduced weight and improved shock absorption

Slim riding position opens up the cockpit for additional room to allow the rider to actively take control of the machine

American Suzuki Motor Corporation makes every effort to present the most current specifications and product features. Because of our policy of continual improvement, changes may be made in equipment, availability, specifications and features without notice or obligation.

Specifications

MSRP: $8,399

Engine: 4-stroke, liquid-cooled, DOHC

Bore Stroke: 96.0 mm (3.780 in) x 62.1 mm (2.445 in)

Compression Ratio: 11.6 : 1

Lubrication: Suzuki Advanced Sump System

Front Suspension: SHOWA 47mm Telescopic, pneumatic / coil spring, oil damped

Rear Suspension: Swingarm link type, SHOWA piggyback-reservoir shock

Front Brakes: Disc brake

Rear Brakes: Disc brake

Front Tires: 80/100-21

Rear Tires: 110/100-18

Color: Solid Black/Champion Yellow No. 2

Ignition: Electronic ignition (CDI)

Starter: Electric Start with manual kick back up

Transmission: 5-speed constant mesh

Final Drive: Chain

Overall Length: 2185 mm (86.0 in)

Overall Width: 830 mm (32.7 in)

Seat Height: 955 mm (37.6 in)

Ground Clearance: 320 mm (12.6 in)

Wheelbase: 1480 mm (58.3 in)

Curb Weight: 123.5 kg (272.3 lbs)

Fuel Tank Capacity: 6.2 L (1.6 US gal)

American Suzuki Motor Corporation makes every effort to present the most current specifications and product features. Because of our policy of continual improvement, changes may be made in equipment, availability, specifications and features without notice or obligation.