RMX 450Z
449cc, 4-stroke, liquid-cooled, DOHC
Electric & Kick
Front: SHOWA 47mm telescopic forks, Rear: wingarm, link type, SHOWA
5-Speed Constant Mesh

Engineered To Excite

Racing improves the breed, Suzuki has proven that time and time again. Now it's time to rewrite the rules for the serious off-road rider with the RMX450Z.

Descending from the Championship winning RM-Z450, the first motocross bike to offer high-performance Suzuki fuel injection, the RMX450Z is a serious off-road bike for serious trail riders. Its powerful and torquey 449cc, liquid-cooled, four-stroke engine shares all core technology with Suzuki's winning open-class motocrosser.

Its frame, suspension and bodywork are nearly all identical to the RM-Z450's - maintaining that model's slim, aggressive styling. Only changes to make the RMX450Z a superior trail machine have been made - maximum performance - no compromises.

That's like taking your hard-core motocross machine out onto the trail. Only better. Much better. 


    • 449cm3 4-stroke, 4-valve, liquid-cooled, fuel-injected DOHC powerplant based on that of Suzuki's winning open-class motocrosser RM-Z450.

    • Trail-ready features include an electric starter powered by a compact battery, a coolant reservoir tank and an engine protector plate.

    • A larger magneto-generator is fitted to charge the battery and power the lights.

    • Advanced fuel-injection system makes for extra-smooth power delivery, high fuel efficiency, superb reliability and reduced emissions.

    • The airbox features a hinged lid for quick air-filter maintenance and better protection from dust.

    • Minimal modifications from the motocrosser engine include modified inlet tract and revised cam profiles to increase low and mid-rpm power.

    • 5-speed transmission with wide gear ratios and primary/final drive ratios selected to suit various situations from steep trails to open terrain.

    • The aluminium-alloy twin-spar frame combines cast and extruded sections to achieve low weight with high rigidity and high durability.

    • RM-Z450-derived, trail-ready suspension, using high-performance Showa forks and Showa piggyback-reservoir style rear shock.

    • Rear suspension linkage geometry combines the RM series' renowned turning-on-rails abilities with optimized handling performance for trail rides.

    • The aluminium alloy swingarm, derived from RM-Z450, to maintain ideal balance, while the rear suspension linkage benefits from reduced free play.

    • Motocross-developed seat, slim bodywork and low-profile aluminium-alloy fuel tank together compose a comfortable, ergonomical riding position.

    • The full-function, two (sport/standard) mode instrument cluster in a durable, ultra-compact housing includes a low fuel level warning light.

    • Useful two-mode instrument display; Sport mode simply shows timer, tripmeter, average speed and tire-diameter correction.

    • Standard mode also shows speed, time, two trip lengths and voltage.

  • An integrated tyre diameter calculator allows precise fine tuning for different tyres to ensure accuracy of the speed and distance displays


    • For aditional information:

Northern Motorcycles

72 Stirling Road
Port Augusta, SA, 5700

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Telephone: (08) 8642 5551
Facsimile: (08) 8642 4847
Email: phil@northernmotorcycl...

Trading Hours

Monday to Friday : 9.00am - 5.30pm
Saturday : 9.00am - 12.00pm
Sunday : Closed

(08) 8642 5551

About Us

Northern Motorcycles specialises in everything to do with motorbikes including sales, service and repairs as well as a wide range of motorcycle accessories. We are located in Port Augusta, South Australia and have been servicing the Mid North, Upper North and Far North regions for over 25 years.
Northern Motorcycles specialises in new and used motorbikes including Yamaha, Suzuki and Honda and offers full service in their workshop.

We also stock all accessories