Engine249cc, 4-stroke, liquid-cooled, single cylinder, DOHC
Bore x Stroke77.0 mm x 53.6 mm (3.0 in. x 2.1 in.)
Compression Ratio13.75:1
Fuel SystemFuel injection, dual-injector type
StarterPrimary kickstarter with automatic decompressor
LubricationSemi-dry sump
ClutchWet multi-plate
Transmission5-speed constant mesh
Final DriveChain, DID 520DMA4K, 114 links
Suspension FrontInverted telescopic, coil spring, oil damped, adjustable damping force
Suspension RearSingle unit, link 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 Rear100/90-19 M/C (57M), tube type
Fuel Tank Capacity6.3 L (1.66 US gal.)
ColorChampion Yellow No. 2
IgnitionElectronic ignition (CDI)
Spark PlugNGK CR8EIB-10
Overall Length2185 mm (86.02 in.)
Overall Width835 mm (32.9 in.)
Overall Height1255 mm (49.4 in.)
Wheelbase1485 mm (58.46 in.)
Ground Clearance330 mm (13.0 in.)
Seat Height955 mm (37.5 in.)
Curb Weight106 kg (233 lb.)
WarrantyNot applicable
KEY FEATURES
Superb Engine Performance
Center-port cylinder head increases output and throttle response
Dual fuel injector system boosts high rpm power
Traction management system helps the bike hook up
Suzuki Holeshot Assist Control (S-HAC) gets you out front
Exceptional Cornering Performance
Frame and swingarm balances lightness with strength
Engine placement and mounting aid chassis' nimble handling
Coil spring KYB fork provides superb performance and easy tuning
KYB rear shock and linkage deliver remarkable control
Race-ready, high-grip Dunlop MX33 tires
Controlled Braking Performance
Large-diameter front brake increases stopping power and feel
Compact rear master cylinder is designed to prevent mud from collecting on it and from catching on the riders boots
Functional Styling
Aggressive new styling from the championship caliber RM-Z450
Narrow cockpit lets the rider move with ease for maximum racing performance
Rider-friendly Tuning
Suzukis MX-Tuner 2.0 is supplied, providing quick fuel injection and ignition tuning through an easy-to-use smart-phone application
Fuel couplers are included for quick and easy EFI tuning
ENGINE FEATURES
Fitted with a center-port cylinder head, the fuel-injected, 249cc, liquid-cooled, four-stroke, four-valve, DOHC engine remains proven and reliable.
The engine delivers strong peak power and superb throttle response through the entire rev range.
The cylinder head features a refined intake port shape and finish that fine-tunes the fuel/air charge into the combustion chamber to increase engine output.
A large air cleaner opening is combined with a more direct air cleaner outlet tube path into the throttle body for high-volume air flow.
The fuel injection system has extra-smooth power delivery, high fuel efficiency, superb reliability, and easy tuning capability.
Two fuel injectors are used to deliver an ample fuel-air charge for excellent combustion chamber efficiency and high rpm power.
The primary fuel injector is at the bottom of the throttle body and sprays fuel at the butterfly valve for outstanding fuel and air atomization. The secondary injector is positioned in the air cleaner inlet duct so the fuel and air have more time to mix and cool before entering the engine.
To feed the new twin-injector system and mix the fuel and air charge for outstanding throttle response, the RM-Z250 uses a high-capacity fuel pump.
The special design of the throttle body eliminates complex control linkage, so the rider feels a more direct connection to the engine.
The intake camshaft profile has more valve lift that the prior generation RM-Z250, increasing power at all engine speeds.
The cam chain tension adjuster and guide have been designed to reduce friction and mechanical loss.
The compact aluminum cylinder is finished with Suzuki Composite Electrochemical Material (SCEM) coating for durabil