Sunbeam B2 (1958-65) vs KTM 690 Duke (2011)
Comparison technical specifications
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| Make: | Sunbeam | KTM |
| Model: | B2 | 690 Duke |
| Years: | 1958-65 | 2011 |
| Engine: | Single cylinder, two-stroke | Four stroke, single cylinder, SOHC, 4 valves |
| Capacity: | 175 cc / 10.7 cu in | 653.7 cc / 39.91 cu in |
| Bore x Stroke: | 61.5 x 58 mm | 102 x 80 mm |
| Cooling System: | Forced air cooled | Liquid Cooled |
| Battery: | 12V | 12 V / 11.2 Ah |
| Starting: | Electric | Electric |
| Max Power: | 5.6 kW / 7.5 hp | 46 kW / 65 hp @ 7500 rpm |
| Transmission: | Four speed | 6 Speed |
| Final Drive: | Enclosed chain in oil bath | Chain X-Ring 5/8 x 5/16" |
| Frame: | Tubular frame | Chromoly trellis frame, powder-coated, aluminium sub frame |
| Ground Clearance: | 127 mm / 5.0" | 155 mm / 6.1 in |
| Front Brakes: | Drum, 127 mm diameter | Single 320 mm floating disc, radially screwed four-piston brake caliper |
| Rear Brakes: | Drum, 127 mm diameter | Single 240 mm floating disc, single piston caliper |
| Dry weight: | 100 kg / 220 lbs | 148.5 kg / 327 in |
| Fuel Capacity: | 8 L / 1.8 Imp gal / 2.1 US gal | 13.5 Litres / 3.6 US gal / 3.0 Imp gal |