KTM 2016 RC 390 User Manual

23 TECHNICAL DATA 171
23.1 Engine
Design 1-cylinder 4-stroke engine, water-cooled
Displacement 249 cm³ (15.19 cu in)
Stroke 61.1 mm (2.406 in)
Bore 72 mm (2.83 in)
Compression ratio 12.5:1
Control DOHC, 4 valves controlled via cam lever, chain drive
Valve diameter, intake 29 mm (1.14 in)
Valve diameter, exhaust 24 mm (0.94 in)
Valve clearance, intake, cold 0.08… 0.12 mm (0.0031… 0.0047 in)
Valve clearance, exhaust, cold 0.13… 0.17 mm (0.0051… 0.0067 in)
Crankshaft bearing 2 slide bearings
Conrod bearing Sleeve bearing
Pistons Cast light alloy
Piston rings 1 compression ring, 1 tapered compression piston ring, 1 oil
scraper ring
Engine lubrication Pressure circulation lubrication with two rotary pumps
Primary transmission 30:80
Clutch Clutch in oil bath/mechanically activated
Transmission 6-gear, claw shifted
Transmission ratio
1st gear 12:32
2nd gear 14:26
3rd gear 19:27

KTM 2016 RC 390 Specifications

General

Displacement	373.2 cc
Bore x Stroke	89 mm x 60 mm
Compression Ratio	12.6:1
Power	32 kW (44 hp) @ 9, 500 rpm
Torque	35 Nm @ 7, 250 rpm
Transmission	6-speed
Rear Suspension	WP monoshock
Rear Brake	230 mm disc, single-piston caliper
Front Tire	110/70 ZR17
Rear Tire	150/60 ZR17
Seat Height	820 mm
Fuel Tank Capacity	10 liters
Dry Weight	147 kg
Ground Clearance	178.5 mm
Engine Type	Single-cylinder, 4-stroke
Fuel System	Electronic Fuel Injection
Front Suspension	WP USD 43 mm
ABS	Bosch 9MB Two-Channel ABS
Frame	Steel trellis frame
Front Brake	300 mm disc, 4-piston radial caliper