Suzuki made sure to miss no aspect when improving their RM-Z450 motocrosser for 2010 due to the revolutionary stance that this dirt bike has in the collective mental ever since 2007, when it came out as the first fuel-injected production bike. Suzuki claims their new engine is now more powerful and offers better throttle response, while the also new chassis is supposed to sharpen steering and improve control. We have no reasons to doubt that so far, but we must say we expected the new model year to weigh less, not 1 kg more than the previous generation one. It seems that not all aspects have been covered after all.

  • 2010 Suzuki RM-Z450
  • Year:
  • Make:
  • Model:
  • Engine:
    four-stroke, single-cylinder, liquid cooled, DOHC, 4-valve
  • Transmission:
    5-speed constant mesh
  • Energy:
    Electronic fuel injection
  • Displacement:
    449 L
  • Top Speed:
    115 mph


2010 Suzuki RM-Z450
Revamped 2010 Suzuki RM-Z450 Now Available

Two years after revolutionising the motocross world with its fuel-injected engine, Suzuki’s championship-winning RM-Z450 motocrosser has raised the bar again, with the new 2010 model boasting a host of upgrades.

In 2007, the RM-Z450 became the world’s first production motocross motorcycle to feature electronic fuel-injection, a ground-breaking move which has seen Suzuki lead race fields across the globe.

With Steve Ramon at the helm, the fuel-injected RM-Z450 won the 2007 team and rider titles in the competitive FIM MX1 Motocross World Championship.

The RM-Z450 is also Chad Reed’s weapon of choice, the Australian superstar currently leads the AMA Motocross Championship, having dominated last year’s inaugural Australasian Supercross Championship and scored regular race wins in this year’s AMA Supercross Championship.

With other manufacturers still playing catch up, the new 2010 model has received a range of significant upgrades, including a further improved engine, a new frame and new suspension, set to keep the Suzuki RM-Z450 at the front of the field.

"Suzuki’s RM-Z450 led the way with fuel-injected technology in motocross racebikes; it changed the face of the sport," Perry Morison, General Manager, Motorcycles, Suzuki Australia said.

"On and off the track, other manufacturers have followed our lead, and the 2010 Suzuki RM-Z450 is here to move the goalposts again.

2010 Suzuki RM-Z450
- image 317832
2010 Suzuki RM-Z450

"It’s Suzuki’s best motocrosser yet, with major engine, chassis and suspension developments, and is ready to continue the winning ways of the RM-Z450."

Further enhancing throttle response and power throughout its rev range, the 449cc, four-stroke, single-cylinder, liquid cooled, DOHC, 4-valve engine features a new cylinder head, piston, crankshaft, throttle body, cam shafts and valve springs.

Pioneered by Suzuki, the Electronic Fuel Injection (EFI) system is even better with a reversed throttle valve movement, directing mist away from the valve to produce more power and enhanced throttle response.

The perfect match for a potent engine, 2010 RM-Z450 riders will benefit from significant chassis and suspension development.

A new, more rigid, twin-spar aluminium frame is accompanied by a new subframe, linkage and rear swingarm, and enhanced, race-bred Showa suspension to help provide sharper handling, improved manoeuvrability and maximum traction.

With revised spring and damping rate settings at each end, 47mm inverted front forks are fully adjustable for rebound and compression settings, while the rear shock absorber offers fully adjustable rebound, compression and pre-load settings.

The new RM-Z450 also features a new radiator and significant electrical upgrades including ECU revisions, as part of the ultimate motocross weapon.

Now available in Australia, Suzuki 2010 RM-Z450 sports an aggressive look, with bold new graphics adorning Suzuki’s traditional Champion Yellow livery.


2010 Suzuki RM-Z450
- image 317834
2010 Suzuki RM-Z450 naked

Engine and Transmission

Engine: 449cc, four-stroke, single-cylinder, liquid cooled, DOHC, 4-valve

Bore x Stroke: 96.0 x 62.1mm

Compression Ratio: 12.2:1

Fuel System: Electronic fuel injection

Lubrication: Semi-dry sump

Ignition: Digital CDI

Transmission: 5-speed constant mesh

Chassis and Dimensions


Front: Showa 47mm telescopic forks, pneumatic/coil spring, oil damped
Rear: Swingarm, link-type Showa piggyback-reservoir shock


Front: Single hydraulic disc
Rear: Single hydraulic disc


Front: 80/100-21
Rear: 110/90-19

Overall Length: 2,190mm

Overall Width: 830mm

Overall Height: 1,270mm

Seat Height: 955mm

Ground Clearance: 325mm

Wheelbase: 1,495mm

Curb Mass: 113.0kg

Fuel Capacity: 6.2 litre


Color: Black / Champion Yellow 2

Maxx Biker
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  (824) posted on 09.7.2009

This RM-Z450 would be nice for replacing my WR450F.smiley

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