KTM 390 DUKE 2024 User Manual

26 STANDARDS
122
JASO T903 MA2
Different technical development directions required a separate specification for motorcycles – the JASO T903 MA2
standard.
Earlier, engine oils from the automobile industry were used for motorcycles because there was no separate motor-
cycle specification.
Whereas long service intervals are demanded for automobile engines, the focus for motorcycle engines is on high
performance at high engine speeds.
In most motorcycle engines, the transmission and clutch are lubricated with the same oil.
The JASO T903 MA2 standard meets these special requirements.
SAE
The SAE viscosity classes were defined by the Society of Automotive Engineers and are used for classifying oils
according to their viscosity. The viscosity describes only one property of oil and says nothing about quality.

KTM 390 DUKE 2024 Specifications

General

Displacement	399 cc
Compression Ratio	12.6:1
Fuel System	Electronic Fuel Injection
Transmission	6-speed
Frame	Steel trellis frame, powder coated
Rear Suspension	WP APEX Monoshock
Front Tire	110/70 R17
Rear Tire	150/60 R17
Wheelbase	1, 357 mm ± 15 mm
Seat Height	820 mm
Engine Type	Single-cylinder, 4-stroke
Power	44 hp
Torque	39 Nm
Clutch	PASC anti-hopping clutch, mechanically operated
Front Suspension	WP APEX 43 mm
Front Brake	4-piston radial fixed caliper, 320 mm disc
Rear Brake	Single-piston floating caliper, brake disc
ABS	Bosch 9.1MB
Fuel Tank Capacity	13.4 liters
Instruments	TFT display
Lighting	LED
Riding Modes	Street, Rain