July 9, 2024

The KTM RC390 is a sport motorcycle designed for high performance and agility. The 2021 model of the KTM RC390 has a 373 cc single-cylinder engine that produces 44 horsepower and 26 lb-ft of torque. It has a six-speed transmission and a trellis frame made of steel. 

The bike has a wet weight of 330 lbs and a fuel tank capacity of 3.7 gallons. It also has a digital instrument panel, LED headlights, and a hydraulic disc brake system with a four-piston caliper at the front. The KTM RC390 has a top speed of approximately 150 mph.

MOdel RC390
Release year 2021
release month 2
Market global
Overall length (mm) 1995
Width (mm) 705
Height (mm) 1099
Wheelbase (mm) 1355
Minimum ground clearance (mm) 178.5
seat height (mm) 820
Vehicle weight (kg) 158
Seat 2
Engine 4 stroke
number of cylinders 1
cylinder array single cylinder
cooling method water cooling
displacement (cc) 373.2
Cam/valve drive system DOHC
Number of valves per cylinder Four
Inner Diameter (Cylinder Bore) (mm) 89
Stroke (piston stroke) (mm) 60
Compression ratio (:1) 12.5
Maximum output (kW) 32
Maximum power (PS) 44
Maximum output speed (rpm) 9500
Maximum torque (N・m) 35
Maximum torque rotation speed (rpm) 7250
Fuel supply system fuel injection
Fuel tank capacity (L) 9.5
Fuel tank reserve capacity (L) 1.5
Fuel (type) high octane gasoline
Engine starting method self starter
ignition device Full transistor type
Spark plug standard installation/model LKAR8A-9
Necessary number of spark plugs/total 1
Installed battery/model YTX9-BS
battery capacity 12V-8Ah
Engine lubrication system Wet sump type
Engine oil capacity*Total capacity (L) 1.7
Recommended engine oil (SAE viscosity) 10W-40
Drain bolt nominal diameter (mm) 24.0
Clutch type Wet/multi-plate
Transmission type Return type, 6-speed
Transmission/operation method foot shift
Power transmission system chain
Number of sprocket teeth/front 15
Number of sprocket teeth/rear 45
chain size 520
Frame model steel trellis frame
caster angle 66.5°
Trail amount (mm) 88
Brake type (front) hydraulic disc
Brake type (rear) hydraulic disc
Compliant standards for brake oil DOT 4
Suspension system (front) telescopic fork
front fork type inverted fork
Front suspension stroke (mm) 125
Suspension system (rear) swing arm
Number of shock absorbers (rear) 1
Rear suspension stroke (mm) 150
tire (front) 110/70ZR17
Tire (front) structure name radial
Tire (front) load index 54
Tire (front) speed symbol W.
Tire (front) type tubeless
tire (rear) 150/60ZR17
Tire (rear) structure name radial
Tire (rear) load index 66
Tire (rear) speed symbol W.
Tire (rear) type tubeless
Wheel rim width (front) 3.0
Wheel rim width (rear) 4.0
Tire standard specified air pressure (at passenger capacity/before) 2.00
Tire standard specified air pressure (at passenger capacity/after) 2.20
Headlight rating (Hi) 65W
Headlight type (Hi) H9
Headlight rating (Lo) 55W
Headlight type (Lo) H11
tail light type LED
Speedometer display format Digital
Meter display: gear position Yes
Meter display: fuel gauge Yes
Meter display: engine tachometer Yes
Meter display: Clock Yes
Meter display: Twin trip Yes
Vehicle equipment: Anti-lock brakes (ABS) Yes
Vehicle Equipment: Slipper Clutch Yes

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