KTM 390 Duke Series 2019 User Manual

TUNING THE CHASSIS 11
113
11.1 Adjusting the spring preload of the shock absorber
Warning
Danger of accidents Modifications to the suspension setting may seriously alter the handling characteris-
tic.
– Ride slowly to start with after making adjustments to get the feel of the new handling characteristic.
Info
The spring preload defines the initial status of the spring operation on the shock absorber.
The best spring preload setting is achieved when it is set for the weight of the rider and that of any lug-
gage and a passenger, thus ensuring an ideal compromise between handling and stability.
F00793-10
–
Adjust the spring preload by turning adjusting ring
1
.
Guideline
Spring preload
Standard 5 clicks
Hook wrench, shock absorber (90529077000)
Extension for hook wrench (90129099025)
Info
The spring preload can be set to 10 different positions.

KTM 390 Duke Series 2019 Specifications

General

Displacement	373.2 cc
Bore x Stroke	89 mm x 60 mm
Torque	37 Nm @ 7, 000 rpm
Compression Ratio	12.6:1
Transmission	6-speed
Frame	Steel trellis frame, powder coated
Front Suspension	WP upside-down Ø 43 mm
Rear Suspension	WP monoshock
Front Tire	110/70 R17
Rear Tire	150/60 R17
Wheelbase	1, 357 mm
Seat Height	830 mm
Ground Clearance	170 mm
Fuel Tank Capacity	13.4 liters
Dry Weight	149 kg
Power	32 kW (43.5 hp) @ 9, 000 rpm
Fuel System	Electronic fuel injection (EFI)
Front Brake	320 mm disc brake
Rear Brake	230 mm disc brake
ABS	Bosch 9.1MB two-channel ABS
Engine Type	Single-cylinder, 4-stroke, liquid-cooled
Clutch	Wet multi-disc clutch, mechanically operated