Bultago Bultaco Alpina 250 (1971-79) vs Yamaha FZR 600R (1995) vs KTM 790 Duke (2022) vs Moto Guzzi V 50C (1982-86)
Comparison technical specifications
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| Make: | Bultago | Yamaha | KTM | Moto Guzzi |
| Model: | Bultaco Alpina 250 | FZR 600R | 790 Duke | V 50C |
| Years: | 1971-79 | 1995 | 2022 | 1982-86 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder | Four stroke, V twin, longitudinally mounted, OHV, 2 valve per cylinder. | |
| Capacity: | 599 cc / 36.6 cub in. | 799 cc / 48.7 cu-in | 490 cc / 29.9 cu-in | |
| Bore x Stroke: | 62 x 49.6 mm | 88 mm x 65.7 mm | 74 x 57 mm | |
| Compression Ratio: | 12.0:1 | 12.7:1 | 10.4:1 | |
| Induction: | 4x 34 mm Keihin CVKD CV | DellOrto fuel-Injection | 2x 28mm Dell'Orto PHBH carburetors | |
| Ignition: | Transistor controlled digital | Bosch EMS with RBW | Battery powered inductive | |
| Starting: | Kick | Electric | Electric | Electric |
| Max Power: | 73.8 kW / 99 hp @ 11500 rpm | 77 kW / 105 hp @ 9000 rpm (95 hp European version) | 48 hp / 35.7 kW @ 7500 rpm | |
| Max Torque: | 65.7 Nm / 6.7 kgf-m / 48 lb-ft @ 9500 rpm | 87 Nm / 63.4 lb-ft @ 8,000 rpm | NA | |
| Transmission: | 6 speed | 6 Speed | 5 Speed | |
| Final Drive: | Chain | O-ring chain, 530 size, 106 links | Chain 520 X-Ring | Shaft |
| Front Suspension: | 41mm Telescopic fork preload adjustable, coil spring, oil damper | WP APEX 43 | Telehydraulic gas forks | |
| Front Brakes: | 2 x 298mm discs, 4 piston calipers | 2x 300mm discs, radially mounted 4 piston caliper | 2x 260mm discs | |
| Rear Brakes: | Single 245 mm disc, 2 piston caliper | Single 240mm disc, 2 piston floating caliper | Single 235mm disc | |
| Front Tyre: | 120/60 ZR17 | Maxxis Supermaxx ST 170/20Z R17 | 100/90 H18 | |
| Rear Tyre: | 160/60 ZR17 | Maxxis Supermaxx ST 182/20Z R17 | 130/90 H16 | |
| Dry Weight: | 184 kg / 405 lbs | 169 kg / 372.5 lbs | 165 kg / 363.7 lbs | |
| Fuel Capacity: | 19 Litres / 5.0 US gal | 14 Litres / 3.7 US gal | 15 Litres / 3.9 US gal |