KTM 390 DUKE 2017 User Manual

13 BRAKE SYSTEM
138
13.3 Checking the brake discs
Warning
Danger of accidents Worn-out brake discs reduce the braking effect.
– Make sure that worn-out brake discs are replaced immediately. (Your authorized KTM workshop will
be glad to help.)
400480-10
– Check the thickness of the front and rear brake discs at mul-
tiple points on each brake disc to ensure it is at least thick-
ness
A
.
Info
Wear will reduce the thickness of the brake disc at con-
tact surface
1
of the brake linings.
Brake discs - wear limit
front 4.5 mm (0.177 in)
rear 3.6 mm (0.142 in)
» If the brake disc thickness is less than the specified value.
– Change the front brake disc.
– Change the rear brake disc.
– Check the front and rear brake discs for damage, cracking, and
deformation.

KTM 390 DUKE 2017 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
Fuel System	Electronic Fuel Injection
Cooling	Liquid cooled
Frame	Steel trellis frame, powder coated
Rear Suspension	WP monoshock
Front Tire	110/70 R17
Rear Tire	150/60 R17
Seat Height	830 mm
Ground Clearance	185 mm
Dry Weight	149 kg
Engine Type	Single cylinder, 4-stroke
Power	32 kW (44 hp) @ 9, 000 rpm
Clutch	Wet multi-disc clutch
Front Suspension	WP upside-down Ø 43 mm
Front Brake	320 mm Disc, Four-Piston Radial Fixed Caliper
Rear Brake	230 mm Disc, Single-Piston Floating Caliper
ABS	Bosch 9MB two-channel ABS
Fuel Tank Capacity	13.4 liters