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Petrol Motocross

Suzuki RM-Z450

2026 · Maker's category: Motocross

Listed on an Australian source page · Specs checked 29 October 2026

The 2026 Suzuki RM-Z450 is a 449 cc liquid-cooled four-stroke motocross bike with a five-speed gearbox, Showa spring fork and BFRC rear shock. Suzuki Australia lists a 960 mm seat height, 112 kg wet weight and a ride away price of $12,190.

2026 Suzuki RM-Z450, side studio view
Image: Suzuki Motorcycles Australia
Seat height
960 mm
Weight
112 kg
wet
Engine
449 cc
four-stroke
Price
$12,190
Ride away (for non-road registerable models: MSRP plus dealer delivery fee, per page disclaimer)

Who should look at it

  • Experienced motocross racers and track riders in the 450 class.
  • Riders wanting a lower-priced open-class motocross bike with S-HAC holeshot assist and MX Tuner mapping.

Check before you buy

  • Kick start only (spec table: Primary Kick).
  • Competition motocross model; expect frequent maintenance.
  • Tall 960 mm seat height and 112 kg wet weight.
  • Road registration not stated.

This is desk research from published specifications. Nobody at Dirty Bikes has ridden this bike for this page. Fit and suitability need an in-person check with a dealer.

Specifications

Numbers in brackets link to the source list. Anything a source did not publish is listed as not published; we never estimate it.

Fit and chassis

Seat height 960 mm [1]
Weight 112 kg [1] Basis: Wet Weight
Wheelbase 1,480 mm [1]
Front wheel 21 in, 80/100-21 51M, tube type [1]
Rear wheel 19 in, 110/90-19 62M, tube type [1]
Front suspension 49mm SHOWA inverted spring fork, adjustable compression and rebound damping and spring preload [1]
Rear suspension Link type, SHOWA Balance Free Rear Cushion Lite shock with adjustable compression and rebound damping and spring preload [1]
Front brake Nissin twin-piston caliper, 270mm wave disc [1]
Rear brake Nissin single-piston caliper, 240mm wave disc [1]

Not published: Ground clearance.

Engine

Capacity 449 cc [1]
Engine type four-stroke [1]
Cooling liquid [1] page: liquid-cooled
Transmission 5-speed, constant mesh [1]
Starting Primary Kick [1]
Fuel capacity 6.3 L [1]

Not published: Power, Torque.

Registration and where you can ride

Registration: Unknown. Check with the distributor and your state authority

AU page does not state whether this model is road registerable or ADR compliant. Motocross competition model.

Registration and permission to ride are separate questions. Where you can ride depends on your state or territory and the land manager. Check with the relevant authority before you ride anywhere.

Ownership

Warranty: N/A (as listed in the AU spec table)[1]

Competition motocross model. Price is labelled Ride away; page disclaimer says Ride away for non-road registerable models includes MSRP and dealer delivery fee, and for road registerable models also registration, CTP and stamp duty. The page does not say which applies to this model. MX Tuner 2.0 copy says it is standard 'with every new MY24 RM-Z purchased', which may not apply to the 2026 model; confirm with a dealer.

Sources disagree
  • Highlights describe the rear as 'BFRC Shock' while the spec table says 'SHOWA Balance Free Rear Cushion Lite shock' (spec table used).

Sources

  1. RM-Z450 | Suzuki Motorcycles Australia · Suzuki Motorcycles Australia · Australian source · checked 29 October 2026

Editorial review: awaiting editor sign-off. Spot an error? Report a correction.

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