KTM 690 Duke R (2011) vs Yamaha XS 250 DOHC (1984-)
Comparison technical specifications
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| Make: | KTM | Yamaha |
| Model: | 690 Duke R | XS 250 DOHC |
| Years: | 2011 | 1984- |
| Engine: | Four stroke, single cylinder, SOHC, 4 valves | Four stroke, 180° parallel twin, DOHC, 2 valves per cylinder |
| Capacity: | 690 cc / 42.1 cu in | 248 cc / 15.2 cu-in |
| Bore x Stroke: | 102 x 84.5 mm | 56 х 50.6 mm |
| Cooling System: | Liquid Cooled | Air cooled |
| Compression Ratio: | 12.5:1 | 10.1:1 |
| Lubrication: | Wet sump | Wet sump |
| Induction: | Generation Keihin EMS with EPT (Electric Power Throttle) | 2x 32mm Mikuni carburetors |
| Ignition: | Kokusan DC-CDI | Coil and cb |
| Starting: | Electric | Kick |
| Max Power: | 52.2 kW / 70 hp @ 7500 rpm | 30 hp / 22.3 kW @ 10000 rpm |
| Max Torque: | 69.8 Nm / 7.1 kgf-m / 51.6 ft-lb @ 6550 rpm | 2.2 kgf-m / 15.2 lb-ft @ 8500 rpm |
| Clutch: | APTC multi-disc wet clutch, hydraulically operated | Wet multiplate |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain X-Ring 5/8 x 5/16" | Chain |
| Frame: | Chromoly trellis frame, powder-coated, aluminium sub frame | Duplex cradle |
| Front Suspension: | WP Upside-down forks, 4860 ROMA | Telescopic forks |
| Rear Suspension: | WP monoshock, 4618 with Pro-lever deflector | Dual shocks, swing arm, 5-position preload adjustable |
| Front Brakes: | Single 320 mm floating disc, radially screwed four-piston brake caliper | Single 267mm disc |
| Rear Brakes: | Single 240 mm floating disc, single piston caliper | 178mm Drum |
| Front Tyre: | 120/70 - R17 | 3.00-18 |
| Rear Tyre: | 160/60 - R17 | 3.50-18 |
| Seat Height: | 865 mm / 34 in | 810 mm / 31.8 in |
| Dry Weight: | 148.5 kg / 327 in | 165.5 kg / 365 lbs |
| Fuel Capacity: | 13.5 Litres / 3.6 US gal / 3.0 Imp gal | 14 Litres / 3.7 US gal |