Description

KTM 250 SX-F 2024

NEW FOR 2024

• Revised livery with new graphics
• Renewed suspension settings
• Improved bike balance, comfort and cornering agility

CARRIED OVER FROM THE BIG 2023 UPDATE

• New engine design - light and compact for optimized mass-centralisation
• Engine tilted 2° backwards with repositioned front sprocket - 3mm lower
• Improved serviceability of engine
• Added service markers
• New engine covers, more reliable coating
• Completely new airbox design
• Non-symmetrical air filter shape
• Airbox Intake rubber with plastic insert
• New Intake Air Temperature Sensor – new position now integrated into right subframe panel
• Exhaust adapted routing, adapted resonance chamber
• All variants share the same mounting points
• Header pipe and PowerBomb design are related to engine displacement
• Compression ratio now 14.5:1
• 14,000rpm rev limit
• New valve cover, only two mounting screws
• Engine height reduced by 8mm, better mass centralisation
• New engine case
• All new powertrain
• Improved sealing on cylinder head cover
• Fully redesigned cylinder head
• Large titanium valves (32.5 mm intake, 27.5 mm exhaust)
• Redesigned camshaft and adapted valve timing to new valve measurements
• New Camshaft bridge increased stiffness and improved serviceability
• No halfmoon seals
• Only drilled oil jets for camshaft lobs (not threaded)
• New bore x stroke - 81 x 48.5mm (previously 78 x 52.3mm)
• New bore/stroke results in high-revving, quick throttle response
• Optimized combustion chamber - smaller inlet port for improved engine response
• New crankshaft and conrod
• Plain big end bearing with force-fitted bearing shells for increased durability
• New 5-speed gearbox by Pankl Racing Sytems
• Changed transmission ratios with optimised transmission
• Redesigned shift shaft for reduced operating force of gear changes
• New integrated quickshift function with clutchless upshifting from 2nd gear up to 5th
• Quickshifter can be rider-programmed
• New clutch basket design as known from the 450cc
• Adapted basket for new transmission ratio
• DS clutch - lightweight with consistent modulation and exceptional durability
• All oil pumps and oil pump wheels are made of sinter steel
• Retrofittable for previous model years
• Structural assembly helps such as oil screen
• Exchange from screwed to drilled oil jets
• New frame design whilst keeping the frame geometry (rider triangle)
• New shock mounting position results in decoupling shock mount from the main chest tube
• More torsional and side stiffness
• Mounting point for foot pegs 8mm more narrow
• More "anti squat" thanks to new engine position in frame
• Frame reinforced in critical areas
• New engine mounts on frame
• Improved sealing on steering head
• Same exhaust mounting point on all frames
• Standardisation across models, eg: 1x 4-stroke frame for all capacities
• 8mm longer and 5mm wider footpegs
• Better rider footpeg contact to bike and more comfort
• New footpeg angle for more rider movement while scrubbing etc
• New “hybrid” subframe design
• Mix of aluminum and composite subframe materials
• Connection subframe parts aluminum, top part composite
• Best subframe combination of all advantages
• More subframe “side impact” stability
• Easier integration of electrical components to subframe
• Exhaust subframe mounts integrated
• Now with brand specific design element
• New design to swingarm
• Retained length as MY22 generation with improved stiffness and 19g lighter
• New 22mm rear axle
• New chain sliders and integrated chain guides
• New rear shockk internal hydro stop extended from 20 to 40mm
• New shock settings and new piston
• 15mm shorter, but more shock stroke
• Shock now Length: 456 mm, Stroke: 140 mm
• Shock is fully adjustable by hand adjusters including new easier pre-load adjuster
• Preload shock adjuster can be changed without splitting the shock
• New shock spring holder made of plastic
• New suspension linkage and points
• New pull rod and triangle lever retaining linkage curve as MY22
• New fork protectors
• All new Triple clamp
• Can now mount the handlebar fixed or rubber-damped
• New hour meter with integrated LED FI lamp
• New handlebar switches
• New START/STOP switch
• New MAP switch, change between maps 1 and 2
• Quickshifter ON/OFF switch
• Switch for activation of launch control and traction control
• New electrics compartment
• New battery position and new fuse box
• New rollover sensor (no pendulum)
• New wiring harness
• Ground cable connected to main frame
• New seat and seat shape
• New seat height
• New seat cover with designed texture
• One screw mounting for seat
• New 7.2 litre fuel tank with new "one piece" fuel pump
• New bodywork and plastics developed and tested together with KTM world championship riders/teams
• New symmetrical bodywork design and plastic parts
• Some parts with brand specific texture on surface like structural paint on main frame
• New Unified radiators
• New high pressure radiator cap
• New downtube now with thermostat option
• New coolant hoses
• New rear brake caliper with 22mm piston
• New rear brake lever and mounting

TECHNOLOGY

• Hour meter with integrated FI light
• Electric starter
• Keihin EMS
• Launch control
• Quickshifter up (not down)
• Traction control
• Engine maps x2

DRIVETRAIN

• 249.9 cm³ four-stroke fuel injected single cylinder
• 26.1kg engine weight
• 47hp output
• Wet multi-disc DS clutch, Brembo hydraulics
• Chain X-Ring 5/8 x 1/4"
• 5-speed transmission
• TwinAir tool-free air filter

BODY

• Central double-cradle-type 25CrMo4 steel frame

SUSPENSION, WHEELS, BRAKES

• Fork pump included
• Discs front and rear
• Front 260 mm disc diameter
• Rear 220 mm disc diameter
• Front WP XACT-USD, Ø 48 mm
• Rear WP XACT Monoshock with linkage
• 63.9° steering head angle
• Dunlop GeoMax MX33 tyres
• Front 80/100 21 51M TT tyre
• Rear 110/90 19 62M TT tyre

MEASUREMENTS

• 101 kg weight without fuel
• 7.2 litre fuel capacity
• 958 mm seat height
• 310 mm front suspension travel
• 300 mm rear suspension travel
• 343 mm ground clearance

SERVICING

• First check 1 hour operating
• Service at 15 hour then every 15 operating hours
• Minor engine rebuild at 45 hours
• Major engine rebuild at 90 hours
• Brake fluid change 90 hours or 2 years
• Coolant every 2 years
• Fork service at 45 hours