Norton Atlas Nomad (2019) vs Yamaha XVS 650 Drag Star Classic (1998-02) vs KTM 620 Duke (1997)
Comparison technical specifications
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| Make: | Norton | Yamaha | KTM |
| Model: | Atlas Nomad | XVS 650 Drag Star Classic | 620 Duke |
| Years: | 2019 | 1998-02 | 1997 |
| Engine: | Four stroke, parallel twin. 270 degree firing order. Chain driven DOHC, with idler gear. | Four stroke, 75°V-twin cylinder, SOHC, 2 valve per cylinder | Four stroke, single cylinder, SOHC, 4 valves |
| Capacity: | 650 cc / 39.6 cu-in | 649 cc / 39.6 cu-in | 609 cc / 37.2 cu in |
| Bore x Stroke: | 82 x 61.5mm | 81 x 63 mm | 101 x 76 mm |
| Compression Ratio: | 11.5:1 | 9.0:1 | 10.4:1 |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled |
| Induction: | Electronic fuel injection system. 4 fuel injectors. Full drive-by-wire system. | 28mm Mikuni downdraft-type carburetor | Dell'Orto PHM 40 SD carburetor |
| Starting: | Electric | Electric | Kick |
| Max Power: | 84 hp / 62.6 kW @ 11000rpm | 40 hp / 29.2 kW @ 6500 rpm | 40.1 kW / 55 hp @ 7000 rpm |
| Max Torque: | 64 Nm / 47.9 lb-ft | 50.9 Nm / 37 lb-ft @ 3000 rpm | 60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm |
| Transmission: | 5 Speed | 5 Speed | |
| Final Drive: | Chain | Shaft | Chain |
| Front Suspension: | 50mm diameter Roadholder USD forks. Preload, compression and rebound adjustable | Telescopic fork | White Power 4054 Top Adjuster |
| Front Wheel Travel: | 150 mm / 5.9 in | 140 mm / 5.5 in | 142 mm / 5.6 in |
| Rear Suspension: | Roadholder monoshock with rising rate linkage and piggyback reservoir. Adjustable preload. | Swingarm Monocross | White Power monoshock 4681 BAVP Single Adjuster |
| Rear Wheel Travel: | 150 mm / 5.9 in | 86 mm / 3.4 in | 170 mm / 6.7 in |
| Front Brakes: | 2 x 320mm full floating Brembo discs. Radially mounted twin Brembo monoblock callipers with ABS. Brembo master cylinder. | Single 298mm disc 2 piston calipers | Single 320 mm disc, 4 piston caliper |
| Rear Brakes: | Single 245mm Brembo disc. Brembo twin piston rear calliper with ABS. Brembo master cylinder. | 200mm drum | Single 220 mm disc, 1 piston caliper |
| Front Tyre: | 110/80 R18 Avon Trekrider tyre | 130/90-18 | 120/70 - 17 Pirelli MT60 |
| Rear Tyre: | 180/55 R17 Avon Trekrider tyre | 170/80-15 | 160/60-17 Pirelli MT60 |
| Seat Height: | 824 mm / 32.4 in | 695 mm / 26.0 in | 894 mm / 35.2 in |
| Dry Weight: | 178 kg / 392.4 lbs | 229 kg / 504 lbs | 145 kg / 320 lbs |
| Fuel Capacity: | 15 Litres / 3.9 US gal | 16 Litres / 4.2 US gal | 10.3 Litres / 2.7 US gal / 2.3 Imp gal |