KTM 390 DUKE 2021 User Manual

3 IMPORTANT NOTES
18
3.4 Service
A prerequisite for perfect operation and prevention of premature wear is that the service, care, and tuning work
on the engine and chassis is properly carried out as described in the Owner's Manual. An incorrect suspension
setting can lead to damage and breakage of chassis components.
Use of the vehicle under difficult conditions, such as dusty environments, heavy rain, high heat or with a heavy
load, can lead to considerably more rapid wear of components such as the air filter, drive train, brake system, or
suspension components. For this reason, it may be necessary to inspect or replace parts before the next sched-
uled service.
It is imperative that you adhere to the stipulated run-in times and service intervals. If you observe these exactly,
you will ensure a much longer service life for your motorcycle.
The relevant mileage or time interval is whichever occurs first.
3.5 Figures
The figures contained in the manual may depict special equipment.
In the interest of clarity, some components may be shown disassembled or may not be shown at all. It is not
always necessary to disassemble the component to perform the activity in question. Please follow the instructions
in the text.
3.6 Customer service
Your authorized KTM dealer will be happy to answer any questions you may have on your vehicle and KTM.
A list of authorized KTM dealers can be found on the KTM website.
International KTM Website: KTM.com

KTM 390 DUKE 2021 Specifications

General

Displacement	373.2 cc
Bore x Stroke	89 mm x 60 mm
Compression Ratio	12.6:1
Torque	37 Nm @ 7, 000 rpm
Transmission	6-speed
Cooling System	Liquid cooled
Frame	Steel trellis frame, powder coated
Rear Suspension	WP APEX Monoshock
Front Tire	110/70 ZR17
Rear Tire	150/60 ZR17
Wheelbase	1, 357 mm
Seat Height	830 mm
Ground Clearance	185 mm
Dry Weight	149 kg
Instrumentation	TFT display
Headlight	LED
Tail Light	LED
Power	32 kW (44 hp) @ 9, 000 rpm
Fuel System	Electronic Fuel Injection
Front Suspension	WP Apex 43 mm
Rear Brake	Single-piston floating caliper, brake disc
ABS	Bosch 9.1MP Two Channel ABS (Supermoto ABS)
Fuel Tank Capacity	13.4 l
Engine Type	Single-cylinder, 4-stroke, liquid-cooled
Front Brake	Four-piston radial fixed caliper, brake disc