The KTM 250 Duke is a motorcycle model produced from 2015 to 2017 with a four-stroke, single-cylinder DOHC engine with a capacity of 248.8cc, a compression ratio of 12.5:1, and liquid cooling with continuous circulation of cooling liquid. It has a stainless steel silencer with regulated catalytic converter and Bosch EFI induction. Its spark plug is Bosch Super VR 5 NEU, and ignition is controlled fully electronically by Bosch EMS with digital ignition adjustment. Its maximum power output is 23.0 kW at 9000 rpm and max torque is 24 Nm at 7250 rpm. The motorcycle is equipped with a six-speed transmission with a wet multi-disc clutch, mechanically operated, and a final drive chain 520 O-Ring 5/8 x 1/4 inches. The bike weighs approximately 306 lbs and has a fuel tank capacity of 11 liters (2.9 US gal / 2.4 Imp gal). It has single 300 mm disc front brakes and single 230 mm disc rear brakes, both with calipers. The motorcycle has a steel trellis frame, powder coated and steel sub-frame, with WP-USD 43mm front suspension and WP-Monoshock rear suspension for wheel travel of 150 mm or 5.9 inches. The front and rear wheels have 5 x Y-shaped spokes and are made of alloy, with 110/70 and 150/60 ZR17 tires respectively. Its ground clearance measures 170 mm, and the seat height is 800 mm or 31.5 inches. Overall, the KTM 250 Duke is a lightweight and powerful motorcycle designed for performance and speed.
Technical specifications:
Make Model: KTM 250 Duke
| Year | 2015 – 17 |
|---|---|
| Engine | Four stroke, single cylinder, DOHC, 4 valves per cylinder |
| Capacity | 248.8 cc / 15.2 cu in |
| Bore x Stroke | 72 x 61.1 mm |
| Compression Ratio | 12.5:1 |
| Cooling System | Liquid cooling system, continuous circulation of cooling liquid with water pump |
| Lubrication | Pressure circulation lubrication with two rotary pumps |
| Exhaust | Stainless steel silencer with regulated catalytic converter |
| Induction | Bosch EFI |
| Spark Plug | Bosch Super VR 5 NEU |
| Ignition | Bosch EMS, contactless controlled fully electronic ignition with digital ignition adjustment |
| Battery | 12V 8Ah, maintenance free |
| Starter | Electric |
| Max Power | 23.0 kW / 30.87 hp @ 9000 rpm |
| Max Torque | 24 Nm / 2.45 kgf-m / 17.7 ft-lb @ 7250 rpm |
| Clutch | Wet multi-disc clutch, mechanically operated |
| Transmission | 6 Speed |
| Primary Drive Ratio | 30/80 |
| Gear Ratios | 1st 12:32 / 2nd 14:26 / 3rd 19:27 / 4th 21:24 / 5th 23:22 / 6th 25:21 |
| Final Drive Ratio | 14/42 |
| Final Drive | Chain 520 O-Ring 5/8 x 1/4″ |
| Primary Drive Ratio | 72:22 |
| Final Drive Ratio | 14:46 |
| Frame | Steel trellis frame, powder coated, steel sub frame, aluminium, tapered, 26/22 mm handlebar. |
| Front Suspension | WP-USD 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 caliper |
| Rear Brakes | Single 230 mm disc, 1 piston caliper, floating |
| Front Wheel | 3.00 x 17, 5 x Y-shaped spokes, alloy wheels |
| Rear Wheel | 4.00 x 17, 5 x Y-shaped spokes, alloy wheels |
| Front Tyre | 110/70 – ZR17 M/C 54W TL |
| Rear Tyre | 150/60 – ZR17 M/C 66W TL |
| Steering Head Angle | 65 degrees |
| Trail | 100 mm / 3.9 in |
| Dimensions | Length: 2026 mm / 79.8 in Width: 836 mm / 32.9 in Height: 1267 mm / 49.9 in |
| Wheelbase | 1367 mm / 53.8 in |
| Ground Clearance | 170 mm / 6.7 in |
| Seat Height | 800 mm / 31.5 in |
| Engine Oil | 1.7 L / 1.8 US qt / 1.5 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 |
| Dry Weight | 139 kg / 306 lbs |
| GVWR | 335 kg / 739 lbs |
