KTM RC 390 User Manual

12 SERVICE WORK ON THE CHASSIS 90
1 2 3 18 19 20
00
0
BB
0
0
AA
401288-10
– Shift gear to neutral.
–
Pull the lower chain section with specified weight

.
Guideline
Weight, chain wear measurement 15 kg (33 lb.)
–
Measure the distance

of 20 chain links in the lower chain section.
Info
Chain wear is not always even, so you should repeat this measurement at differ-
ent chain positions.
Maximum distance

at the longest
chain section
301.6 mm (11.874 in)
»
If distance

is greater than the specified measurement:
– Change the power set.
Info
When the chain is replaced, the rear sprocket and engine sprocket
should also be changed.
New chains wear out faster on old, worn sprockets.

KTM RC 390 Specifications

General

Displacement	373.2 cc
Max Torque	37 Nm @ 7000 rpm
Transmission	6-speed
Cooling System	Liquid Cooled
Front Suspension	WP APEX 43
Rear Suspension	WP APEX Monoshock
Rear Brake	230 mm disc, single-piston floating caliper
Fuel Tank Capacity	13.7 liters
Seat Height	824 mm
Bore x Stroke	89 mm x 60 mm
Compression Ratio	12.6:1
Frame	Steel Trellis Frame, Powder Coated
Engine Type	Single-cylinder, 4-stroke
Max Power	43.5 PS @ 9000 rpm
Fuel System	Electronic Fuel Injection
Front Brake	320 mm disc, 4-piston radial caliper
ABS	Dual Channel ABS
Dry Weight	172 kg
Front Tire	110/70 R17
Rear Tire	150/60 R17
Ground Clearance	158 mm