Review – Key Features – Features & Benefits – Specification
2027 Suzuki RM-Z450: PROVEN.
Introducing the 2027 Suzuki RM-Z450…
Ken Roczen’s 2026 AMA Supercross Championship was inspiring. It will also be remembered as the season the RM-Z450 stunned the sport, reminding 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-Z450’s controllable engine will captivate you with its strong pull and high peak power. New KYB front and rear suspension plus new wheels with RK Excel rims helps the RM-Z450’s responsive chassis deliver exciting cornering performance, with the bonus of legendary Suzuki reliability and value.
Tuning the electronic fuel injection and ignition systems for maximum performance is easy thanks to Suzuki’s smartphone-based MX-Tuner 4.0 or proven fuel-coupler system included with each RM-Z450. Whether you are racing under stadium lights or enjoying a track day with friends and family, the 2027 RM-Z450 will bring serious MX performance in a smart, reliable way.
The Winning Balance
Stripped to its essence, motocross requires a race bike to do three key things: Run, Turn and Stop – all better than the rest.
The RM-Z450 is designed with a laser focus on achieving this winning balance. Backed by proven heritage of world championship wins, it features a well-balanced engine, chassis and electronics, with refined suspension that adds a plusher ride and more traction while keeping the solid frame feel intact. Handling is honest and sharp, now with an even more controllable feeling. Paired with its dramatic styling, the RM-Z450 is the most potent, balanced and competitive motocrosser in its class.
2027 Suzuki RM-Z450 Totalmotorcycle.com 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.
2027 Suzuki RM-Z450 Totalmotorcycle.com Features and Benefits
Engine Features
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.
Transmission Features
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.
Chassis Features
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.
Electrical Features
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.
Styling Features
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.
Additional Features
Suzuki Genuine Accessories include items that can enhance the RM-Z’s performance and simplify maintenance.
2027 Suzuki RM-Z450 – Totalmotorcycle.com Specifications/Technical Details
US MSRP Price: $9,699 USD
Canada MSRP Price: $ See Dealer CDN
Europe/UK MSRP Price: £6499 GBP (On The Road inc 20% Vat)
| Overall length | 2,175 mm (85.6 in) |
|---|---|
| Overall width | 835 mm (32.9 in) |
| Overall height | 1,260 mm (49.6 in) |
| Wheelbase | 1,480 mm (58.3 in) |
| Ground clearance | 330 mm (13.0 in) |
| Seat height | 960 mm (37.8 in) |
| Curb mass | 113 kg (249 lbs) |
| Engine type | 4-stroke, liquid-cooled, DOHC |
| Bore × Stroke | 96.0 mm × 62.1 mm (3.8 in × 2.4 in) |
| Engine displacement | 449 cm3 (27.4 cu.in) |
| Compression ratio | 12.5 : 1 |
| Fuel system | Fuel injection |
| Starter system | Primary kick |
| Lubrication system | Semi-dry sump |
| Transmission | 5-speed constant mesh |
|---|---|
| Primary reduction ratio | 2.625 (63 / 24) |
| Final reduction ratio | 3.846 (50 / 13) |
| Front Suspension | Inverted telescopic, coil spring, oil damped |
| Rear Suspension | Link type, coil spring, oil damped |
| Rake / Trail | 27.5° / 120 mm (4.7 in) |
| Front Brake | Disc |
| Rear Brake | Disc |
| Front Tires Size | 80/100-21 51M, tube type |
| Rear Tires Size | 110/90-19 62M, tube type |
| Ignition system | Electronic ignition (Transistorized) |
| Fuel tank capacity | 6.3 L (1.7/1.4 US/lmp gal) |
| Oil capacity (Overhaul) | 1.2 L (1.3/1.1 US/lmp qt) |
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
