KTM 250 SX‑F vs Yamaha SR400 Comparison

Engine & Performance

Exhuast Pipes	Single Exhaust	1 into 1 Exhaust
No. Of Strokes	4-Stroke	4-Stroke
Valve Configuration	DOHC	SOHC
No. Of Cylinder	1	1
Clutch Type	Wet, Multi-Plate	Wet Multi-Plate
Cooling System	Liquid Cooled	Air Cooling
Compression Ratio	14.0:1	8.5:1
Engine Type	Single Cylinder, 4-Stroke Engine	Single Cylinder, 4-Stroke, Air Cooled
Bore X Stroke	78 mm x 52.3 mm	87 mm x 67.2 mm
Drive Type	Chain Drive	Chain Drive
Displacement	249.9 cc	399 cc
Emission Control	--	Catalytic Converter
Spark Plugs Per Cylinder	--	1
Lubrication System	--	Wet Sump
Valves Per Cylinder	--	2
Injection Type	--	Indirect Injection

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Electrical

Indicator Light	No	Bulb
Accessory Outlet	No	No
Tail Lamp	LED	Halogen
Battery Voltage	12 V, 2 Ah	12V, 2.5 Ah
Head Lamp	--	Projector Lamp
Adjustable Headlights	--	Yes

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Fuel & Ignition

Fuel Type	Gasoline	Petrol
Fuel Supply System	EFI	EFI
Ignition Type	Keihin EMS	TCI
Start Option	Electric	Kick

Chassis & Suspension

Seat Type	Single Seat	Dual Straight
Side Wings	No	No
Chrome Garnish	No	Yes
Rear Suspension	WP Shock	Swing Arm
Body Frame Material	Steel	Steel
Body Frame Type	Central-Tube	Kazemi's Double Academy
Suspension Travel(Rear)	300 mm	--
Front Suspension	WP USD	Telescopic
Suspension Travel(Front)	310 mm	--
Electronic Suspension Adjustment	--	No

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Dimension

Wheelbase	1485 mm	1410 mm
Seating Capacity	1	2
Dry Weight	99 kg	--
Category	Off Road	--
Ground Clearance	370 mm	130 mm
Seat Height	950 mm	785 mm
Oil Tank Capacity	--	2 L
Height	--	1095 mm
Curb Weight	--	174 kg
Length	--	2085 mm
Width	--	750 mm

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Wheels & Tyres

Rear Wheel Size	R19	R18
Front Wheel Size	R21	R18
Tyre Type	Tubeless	--
Front Tyre	80/100 R21	90/100 R18
Rear Tyre	110/90 R19	110/90 R18

Gear & Transmission

Transmission Type	Manual	Manual
Gear Box	5-Speed	5-Speed

Safety & Security

Riding Modes	Off Road, Sport Off Road, Sport	Street Street
Central Locking	No	No
Back Rest	No	No
Launch Control	Yes	No
Traction Control	Yes	No
Leg Guards	No	No
Engine Check Warning	No	Yes
Shutter Lock	No	No
Side Reflectors	No	No
Engine Immobilizer	No	Yes
Wheel Lock Front/back	No	--
Anti-Theft Alarm	No	No
Stability Control	--	No
Pass Switch	--	Yes
ABS	--	No

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Console

Tachometer	No	Analog Analog
Side Stand Indicator	No	No
Oil Change Indicator	No	No
Display Screen	Yes	No
Navigator	No	No
Tripmeter	No	--
Speedometer	--	Analog Analog
Odometer	--	Analog Analog
Fuel Gauge	--	Analog Analog

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Differentiating Features

Height Adjustable Seats	No	No
Cruise Control	No	Optional Optional

Brake

Front Brake	Disc Disc	Disc Disc
Rear Brake	Disc Disc	Drum Drum