2027 RM-Z450

2027 RM-Z450 Overview

Ken Roczen’s 2026 AMA Supercross Championship was inspiring. It will also be remembered as the season the RM-Z450 stunned the sport, remining the Powersports industry what a Suzuki RM-Z is capable of. Inspired by Suzuki’s championship-winning racing heritage, the RM-Z450 brings proven design and engineering to everyday riders.

The RM-Z450’s sleek and ergonomically-sound bodywork, strong engine with effective power, and nimble chassis delivering precise handling helps continue Suzuki’s race-winning legacy. With a revised air intake system the...

RM-Z CHAMPION EDITION

Ride like a champ when you buy a new 2027 RM-Z450 and receive the following for FREE:

  • Pro Circuit RM Army Edition T-6 Full System Exhaust
  • Custom Ken Roczen Replica Graphics Kit

Key Features

Fitted with a new AMA/FIM-compliant exhaust silencer, the RM-Z450’s 449cc, liquid-cooled, four-stroke, four-valve, DOHC fuel-injected engine remains a proven powerplant that delivers high peak horsepower with strong torque characteristics.

The new KYB rear suspension provides plush bump absorption and improved traction complementing the aluminum twin-spar frame and beam-style swingarm which balances lightness with strength to help deliver remarkable handling.

The new KYB front suspension, new upper fork bracket, and new RK Excel wheel rims help create a compliant chassis feel which helps deliver precise and controllable handling feedback to the rider.

Suzuki’s MX-Tuner 4.0 is included and provides the ability to adjust the fuel injection and ignition settings though a smartphone application, while the Suzuki Holeshot Assist Control (S-HAC), and advanced traction management system provides the rider a performance edge.


Delivering excellent throttle response through the entire rev range, the 449cc, liquid-cooled, four-stroke, four-valve, DOHC engine is the latest incarnation of Suzuki’s proven fuel-injected powerplant that delivers high peak horsepower with strong torque characteristics.

New for 2027, the shape of the air cleaner’s outlet tube (which connects the air cleaner to the throttle body assembly) is changed to help improve intake air efficiency.

Suzuki’s advanced fuel-injection system creates extra-smooth power delivery, high fuel efficiency, and superb reliability.

The throttle body design eliminates a complex control linkage, so the rider feels a more direct connection to the engine.


The well-sorted, five-speed transmission enables accurate gear shift operation. This precise transmission feel is the result of a well-machined shift cam for exact gear selection. Specialized machining processes also increase the precision of the matching gears.

The multi-plate, wet clutch uses a lever and cam release mechanism for precise feel of the engagement and disengagement points while riding.


The new KYB®-supplied coil spring fork has large diameter inner tubes and sturdy internal components for strength, durability, and good damping force control.

The short wheelbase and frame head pipe location produces quick and nimble handling characteristics.

New, lightweight, and strong RK Excel rims are used on the RM-Z450 wheel set, contributing to good chassis compliance and feedback to the rider. The bike is fitted with racetrack-developed Bridgestone® Battlecross X30 tires.

The strong RENTHALL-supplied aluminum tapered handlebar has a straighter bend compared to prior models to help the rider maneuver the motorcycle.


Suzuki’s MX-Tuner 4.0 is included and provides the ability to adjust the fuel injection and ignition settings though a smartphone application, while the Suzuki Holeshot Assist Control (S-HAC) and advanced traction management system provides the rider a performance edge.

The Suzuki Holeshot Assist Control (S-HAC) is a selectable launch system derived from the factory race bike to help riders’ takeoff from the starting gate for an early lead.

Suzuki’s proven; easy-to-use fuel couplers are also included to simplify EFI tuning. Riders can change fuel settings in seconds by simply connecting either coupler to the wire harness.

The RM-Z450 features an evolved and efficient traction management system. The Electronic Control Module (ECM) continually measures throttle opening, engine speed, and gear position and then adjusts the ignition timing and fuel injector duration to fine-tune the engine output to help deliver the best traction for the riding conditions.


The Suzuki beak-inspired styling has sharp front fender and radiator shroud shapes that blend into the frame’s side covers and into an upswept tail.

This functional styling and trim chassis permit a variety of rider positions that facilitate maneuvering and comfort.

Made with a special density foam, the seat is well shaped and slim to help the rider maneuver the motorcycle. The seat has a large blue gripper panel that runs nose-to-tail on the cover.

The seat base, inner fenders, and side covers were developed to reduce the amount of moisture and dirt reaching the air cleaner. This helps prevent debris from contaminating the air filter element.


Suzuki Genuine Accessories include items that can enhance the RM-Z’s performance and simplify maintenance. See Suzuki’s industry leading contingency programs at www.SuzukiCycles.com/Racing.


Specifications

  • Engine449cc, 4-stroke, liquid-cooled, single cylinder, DOHC
  • Bore x Stroke96.0 mm x 62.1 mm (3.78 in. x 2.40 in.)
  • Compression Ratio12.5:1
  • Fuel SystemFuel injection, 44mm throttle body
  • StarterPrimary kickstarter with automatic decompressor
  • LubricationSemi-dry sump
  • ClutchWet multi-plate
  • Transmission5-speed constant mesh
  • Final DriveChain, DID® 520DMA2K, 114 links
  • Suspension FrontInverted telescopic, coil spring, oil damped, adjustable damping force
  • Suspension RearLink type, coil spring, oil damped, adjustable spring preload, and damping force
  • Brakes FrontDisc brake, single rotor
  • Brakes RearDisc brake, single rotor
  • Tires Front80/100-21 M/C (51M), tube type
  • Tires Rear110/90-19 M/C (62M), tube type
  • Fuel Tank Capacity6.3 L (1.7 US gal.)
  • ColorChampion Yellow No. 2
  • IgnitionElectronic ignition (CDI)
  • Spark PlugNGK® DIMR8C10
  • Overall Length2175 mm (85.6 in.)
  • Overall Width835 mm (32.9 in.)
  • Overall Height1260 mm (49.6 in.)
  • Wheelbase1480 mm (58.3 in.)
  • Ground Clearance330 mm (13.0 in.)
  • Seat Height960 mm (37.8 in.)
  • Curb Weight112 kg (247 lb.)
  • WarrantyNot applicable

Financing

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*Manufacturer’s Suggested Retail Price (also referred to as “MSRP”, “Base MSRP” or the “Starting At” price), excludes taxes, title, license and registration fees, destination freight and delivery charges, dealer fees, and optional equipment.

**Payments are estimates only and subject to actual available finance rates which customer may qualify for on a given model. Not all buyers will qualify. Approved rates and terms will be based on credit worthiness. APR and Customer Cash offers cannot be combined.

†Freight surcharge is effective on certain MY22, MY23, and MY24 models shipped on or after March 1, 2022. Surcharge is effective on certain MY25 and MY26 models shipped on or after September 17, 2025. See dealer for details. 

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