RM-Z450R M4


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From: $73 pw low price offer.

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RM-Z450R M4

Nothing Corners Like A Suzuki

RM-Z450R M4: Motocross is a relentless game, and the technology and training needed for bike and rider to excel are too. Suzuki poured more than 40 years of open-class racebike engineering into the latest generation RM-Z450. 

The RM-Z450 already has a heritage of 29 world and national championships to build on, including five AMA 450 Motocross, two AMA 450 Supercross,  three Australian Supercross   and three Australian Motocross Championships.  With this winning history comes a well-balanced engine, chassis and electronics package, plus dramatic styling.

The result?

The most potent, best-balanced and competitive RM-Z450 produced yet.

Key Features


Standard with every new MY21 RM-Z purchased, the plug and play MX Tuner 2.0 allows users to alter the engine mapping via the intuitive smartphone WiGET app, available on iOS and Android devices.

The WiGET app comes with several pre-installed factory-developed maps for easy tuning for different riding styles and track conditions.

In just a few minutes the power delivery can be altered for softer delivery settings for hard packed surfaces or dial-in maximum power for deep, loamy conditions and amazing drive out of the corners.

For the more experienced tuner, the possibilities are practically endless with the ability to create fully customised maps with specific settings for 36 points of ignition timing and 36 points of fuel injection delivery.


The RM-Z450 is equipped with the latest SHOWA front and rear suspension components, delivering improved responsiveness and traction, enhanced ability to absorb impacts, better chassis stability, overall feedback to the rider, terrain feel and improved comfort.

Up front, an updated 49mm Showa coil-spring fork based on works A-type design replaces the previous air fork design. Performance has been increased significantly and offers a more consistent feeling throughout a moto. Bike set-up and daily maintenance is also much easier for a wider range of riders.

The Balance Free Rear Cushion (BFRC) rear shock design shares technology with Suzuki’s flagship GSX-R1000R sportsbike. The design balances pressure above and below the piston to better control the stroke and smooth out reactions to bumps and chop, even under severe braking.


All the power in the world won’t do any good if you can’t transfer it to the ground, and Suzuki’s innovative electronics work transparently with the rider for maximum acceleration on any type of dirt or track conditions. Suzuki’s third-generation traction management system, with a significantly updated S-HAC (Suzuki Holeshot Assist Control) system and more powerful ECM (engine control module).

The RM-Z450’s S-HAC system monitors throttle position and gear position in order to adjust ignition timing for maximum acceleration through the three critical stages of a motocross start: releasing the clutch, getting drive over the starting gate, and then powering down the start straight.

Three settings are available:
A-mode: Intended for hardpack surfaces where controlling wheelspin is paramount
B-mode: For normal dirt conditions with good traction
OFF: For normal unassisted take-offs.

Special Features

Rich & Lean Couplers

Riders can adjust the engine performance to suit varied track conditions, by plugging in either of two additional fuel-setting couplers to make the most of any riding conditions. Riders can also overwrite these plugs with new maps using the MX Tuner 2.0.

Fuel Tank

6.3L Tank Capacity

Material changed from aluminium to resin, saving 312g.


Renthal Fatbar Handlebars

Fitted as standard equipment , the top-shelf Renthal aluminium Fatbar offers more strength and less vibration than standard size aluminium handlebars.

Front Brake

270mm Solid Wave Rotor

The front brake disc diameter has been increased from 250mm on the previous generation to 270mm and the brake pad material has been optimised for more linear response characteristics as you brake harder.



ENGINE: Single cylinder, liquid-cooled, DOHC
TRANSMISSION: 5-speed, constant mesh
STARTER: Primary Kick


FRONT SUSPENSION: 49mm SHOWA inverted spring fork, adjustable compression and rebound damping and spring preload
REAR SUSPENSION: Link type, SHOWA Balance Free Rear Cushion Lite shock with adjustable compression and rebound damping and spring preload


FRONT BRAKES: Nissin twin-piston caliper, 270mm wave disc
REAR BRAKES: Nissin single-piston caliper, 240mm wave disc


LENGTH: 2175mm
WIDTH: 835mm
HEIGHT: 1260mm



Enquiry For: RM-Z450R M4

$1,000 deposit for: RM-Z450R M4

1. Complete your order below —— 2. Pay your holding deposit online 3. We will contact you —— 4. Ride your bike away. 



You agree to place your order to purchase this vehicle using this online order form from Western Motorcycles. Your Payment, made via this online process, is a refundable, transferable holding deposit. The Deposit is refundable up until the time you sign our dealership sales documents, so you need not worry if circumstances change.


After completing your online order you will receive an email with the details of your order. Western Motorcycles will then contact you either by phone, email or SMS to confirm your order, including the availability of the vehicle, accessories or any special requests you may have. We will also supply the necessary documents to complete the sale along with additional information regarding the status of your order and preparation and delivery timing for pick up or delivery of your vehicle.


When you click on “Proceed to Payment” you will be transferred to PayPal to make your holding deposit. The Deposit of $1,000 is paid via PayPal either your PayPal account or PayPal’s credit card facility. Payment for your order will be due in full (excluding the deposit) at Western Motorcycles before the Vehicle is registered in your nominated registration name.

Your Price: $14,190.00

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*All quoted discounts includes Cash-back, Rebates and Promotions.

**Weekly payments provided for indicative purposes and are to approved purchasers only. The payments don’t consider your personal situation, insurances & loan protection, warranty options, gap cover or accessories. Figure is based upon a personal finance application for the advertised price of the vehicle with a 10% deposit.

Additional costs may be applicable. Repayments are based on 11.95% over 60 months with 10% deposit.

Comparison rate 12.54% and is based on a secured consumer fixed rate loan of $30,000 over a term of 60 months.

WARNING: This comparison rate is true only for this example given and may not include all fees and charges. Alternate terms, fees or other loan amounts may result in different comparison rates.

Terms and conditions are available on request. For accurate repayments based on your situation please speak to one of our fully qualified finance managers.

Ring Laura on: 02 4733 1733 ext 5