2027 Yamaha YFZ450R SE

Chassis / Suspension

• COMPETITION-READY CHASSIS: The YFZ450R SE’s motocross-ready chassis is built for turn-key competition-ready performance.
• LIGHTWEIGHT ALUMINUM FRAME: Professional-caliber frame is crafted from lightweight weldless aluminum with a tension-steel bottom frame.
• LOW-SITTING ENGINE: Steel frame member under the engine adds strength and allows the engine to sit low and optimize mass centralization.
• DURABLE ALUMINUM FRAME: The aluminum frame section is bolted rather than welded providing excellent durability and long-term reliability.
• OPTIMIZED A-ARMS: Narrow A-arm mounting points increase A-arm length and reduce camber changes through suspension travel.
• KYB FRONT SHOCKS: Fully adjustable front KYB® shocks provide excellent bump absorption and bottoming resistance.
• KASHIMA COATED FRONT SHOCKS: Kashima-coated front shocks offer smooth operation with 9.8 inches of wheel travel ready for the track.
• ADJUSTABLE KYB REAR SHOCK: Fully adjustable 46mm KYB® piggyback rear shock with 11 inches of wheel travel delivers excellent handling.
• ALUMINUM SWINGARM: Competition-tested rear swingarm is crafted from strong gravity-fed aluminum matched to the KYB® rear shock.
• COMPETITION-LEVEL BRAKING: Dual hydraulic front discs and wave-style hydraulic rear disc brakes deliver high-performance that’s ready for competition.
• IDEAL-CORNERING WIDTH: Next level cornering capability with motocross-spec width, enhancing sliding over rough, flat turns.
• LIGHTWEIGHT WHEELS: Lightweight wheels provide strength and rigidity thanks to an inner lip rolled-in design.
• RADIAL MAXXIS TIRES: Proprietary Maxxis radial tires provide excellent traction in a variety of terrain and soil conditions with a precise steering-feel and balanced sliding character.
• ERGONOMIC BODYWORK: Open riding position with smooth contact points for optimized body positioning when riding in a variety of terrains and rider preferences.
• DISTINCTIVE SEAT SHAPE: The YFZ450R SE’s seat enhances rider ability and comfort when cornering on the track or trail.
• TOOLLESS BODY PANEL REMOVAL: All body panels can be removed with 1/4-turn toolless quick-release fasteners for easy maintenance and service access.

Engine

• 449CC HIGH-REVVING ENGINE: High-tech, quick-revving 449cc fuel-injected engine delivers proven championship-winning power.
• FIVE VALVE CYLINDER HEAD: Five-valve cylinder head and titanium valve technology provide strong mid-range and top-end power.
• IMPRESSIVE POWER OUTPUT: The camshaft contributes to the engine’s impressive power output from off the line to the top-end.
• HIGH-COMPRESSION PERFORMANCE ENGINE: High-compression ratio contributes to overall podium-dominating engine performance.
• YAMAHA FUEL INJECTION: Yamaha Fuel Injection (YFI) delivers consistent engine performance and smooth power throughout the rev range.
• OPTIMAL THROTTLE BODY INJECTOR: A 42mm Mikuni® throttle body and 12-hole injector provide maximum power output with exceptional fuel atomization.
• EASY, RELIABLE START-UPS: The system includes ISC (Idle Speed Control) for easy and reliable start-up and warm-up.
• COMPETITION GRADE CRANKSHAFT: The crankshaft is engineered for the aggressive demands of competition while the counterbalancer reduces vibration.
• CENTRALIZED MASS CRANKCASE DESIGN: The crankcase houses the oil tank to centralize mass for exceptional handling while simplifying maintenance.
• ASSIST-AND-SLIPPER CLUTCH: Assist-and-slipper clutch reduces lever effort while increasing clutch plate pressure for positive engagement.
• REDUCED ENGINE BRAKING: The clutch system reduces engine braking for faster cornering, especially while downshifting.

Key Features

• RACE-READY PERFORMANCE: The YFZ450R SE stands as the most technologically advanced Sport ATV available today. It pairs a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum and steel chassis for a combination that produces podiums and championship-winning results time and time again.
• ADVANCED CHASSIS: The YFZ450R SE arrives trail- and motocross-ready. Its weldless aluminum frame features a tension-steel bottom frame that positions the engine lower for excellent mass centralization. Suspension components and settings shed weight while delivering light, sharp handling and genuine rider comfort.
• AGGRESSIVE BODYWORK: The YFZ’s bodywork is designed for great ergonomics and rider comfort with extra room to perfectly position yourself when sliding through corners. The seat is padded in all the right places, and all body panels can be removed with 1/4-turn toolless quick-release fasteners for easy maintenance and service access.
• ADVANCED CYLINDER HEAD: The 449cc engine uses titanium five-valve cylinder head technology to deliver abundant power from mid-range to top-end with stronger response right off idle. The higher compression ratio further sharpens overall engine capability for podium-dominating performance.
• FUEL INJECTION: The YFZ450R SE uses Yamaha Fuel Injection (YFI) for precise fuel delivery at every throttle position. A large 42mm Mikuni® throttle body and 12-hole injector provide exceptional fuel atomization for maximum power, while ISC (Idle Speed Control) ensures easy, reliable start-up and warm-up.
• ASSIST & SLIPPER CLUTCH: An assist-and-slipper clutch lightens lever effort to reduce fatigue while simultaneously increasing clutch plate pressure for positive engagement. The system also reduces engine braking effect for quick cornering, especially when downshifting.
• AGGRESSIVE SE STYLE: Aggressive styling gives the YFZ450R SE a sporty, customized look, highlighted by a GYTR® front grab bar and a unique graphics package.

Other Features

• AGGRESSIVE COMPETITION STYLING: Aggressive styling gives the YFZ450R SE the looks to match its competition-dominating performance.
• SPECIAL EDITION FEATURES: SE features add a dealer-installed GYTR® front grab bar and a unique graphics package.
• COMFORT-FOCUSED HANDLEBAR: A large-diameter, four-way adjustable tapered handlebar reduces vibration for all-day comfort.
• ADJUSTABLE HANDLEBAR POSITIONING: Riders can select between standard, 10mm forward, 20mm forward or 10mm backward handlebar positioning.
• LOW-EFFORT THROTTLE LEVER: The throttle lever requires minimal effort, helping reduce fatigue through long motos.
• WIDE FOOT PEGS: The generous 2.6-inch-wide foot pegs build confidence when standing on the pegs.
• LED DISPLAY: LED display provides essential vehicle information including low fuel, coolant temperature, check engine, and neutral gear indicators.