The KTM 390 Duke motorcycle was produced from 2013-14 and has a four-stroke, single cylinder, DOHC engine with 4 valves per cylinder and a displacement of 373.4cc. It has a compression ratio of 12.8:1 and is liquid-cooled with forced oil lubrication. The bike features a Bosch electronically controlled injection system and an FTZ-9, 12V 8Ah, maintenance-free battery. It can produce a maximum power of 43.5 hp at 9500 rpm and a torque of 35.3 Nm at 7000rpm. The KTM 390 Duke has a 5-speed claw shifted transmission with chain final drive and a primary drive ratio of 30:80. It has a steel trellis frame, WP inverted fork 43 mm front suspension, and a WP monoshock rear suspension. The bike is equipped with single 300 mm disc front brakes and a single 230 mm disc rear brake, with a 110/70 – ZR17 M/C 54W TL Metzeler SPORTEC MS front tire and a 150/70 – ZR17 M/C 66W TL Metzeler SPORTEC MS rear tire. It has a steering head angle of 65 degrees, a trail of 100 mm, and a seat height of 800 mm. The KTM 390 Duke has a dry weight of 139 kg and a fuel capacity of 11 L with an additional reserve of 1.5 L.
Technical specifications:
Make Model: KTM 390 Duke
| Year | 2013 – 14 |
|---|---|
| Engine | Four stroke, single cylinder, DOHC with finger followers, 4 valves per cylinder |
| Capacity | 373.4 cc / 22.7 cu-in |
| Bore x Stroke | 89 x 60 mm |
| Compression Ratio | 12.8:1 |
| Cooling System | Liquid Cooled |
| Lubrication | Forced oil lubrication with 2 Eaton pumps |
| Induction | Bosch electronically controlled injection |
| Spark Plug | Bosch VR 5 NE |
| Ignition | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment |
| Starting | Electric |
| Battery | FTZ-9, 12V 8Ah, maintenance free |
| Max Power | 32 kW / 43.5 hp @ 9500 rpm |
| Max Torque | 35.3 Nm / 3.6 kg-m / 26 ft-lb @7000rpm |
| Clutch | Wet multi-disc clutch, Brembo hydraulics |
| Transmission | 5 Speed, claw shifted |
| Final Drive | Chain 5/8 x 1/4″ X Ring |
| Gear Ratios | 1st 12:32 / 2nd 14:26 / 3rd 19:27 / 4th 21:24 / t5th 23:22 / 6th 25:21 |
| Primary Drive Ratio | 30:80 |
| Final Drive Ratio | 15:45 |
| Frame | Steel trellis |
| Front Suspension | WP inverted fork 43 mm |
| Front Wheel Travel | 150 mm / 5.9 in |
| Rear Suspension | WP monoshock |
| Rear Wheel Travel | 150 mm / 5.9 in |
| Front Brakes | Single 300 mm disc, 4 piston radial caliper |
| Rear Brakes | Single 230 mm disc, 1 piston floating caliper |
| Front Tyre | 110/70 – ZR17 M/C 54W TL, Metzeler SPORTEC MS |
| Rear Tyre | 150/70 – ZR17 M/C 66W TL, Metzeler SPORTEC MS |
| Steering Head Angle | 65 degrees |
| Trail | 100 mm / 3.8 in |
| Seat Height | 800 mm / 31.4 in |
| Wheelbase | 1367 mm / 53.8 in |
| Ground Clearance | 172 mm / 6.8 in |
| Dry Weight | 139 kg / 306 lbs |
| GVWR | 335 kg / 739 lbs |
| Engine Oil Capacity | 1.6 L / 1.7 US qt / 1.4 Imp qt, SAE 15W/50 |
| Fuel Capacity | 11 L / 2.9 US gal / 2.4 Imp gal |
| Fuel Reserve | 1.5 L / 1.6 US qt / 1.3 Imp qt |
