Ducati Hypermotard 820 (2013) vs Yamaha TT-R 250 (2001-) vs Yamaha YDS-1 (1959-61)
Comparison technical specifications
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| Make: | Ducati | Yamaha | Yamaha |
| Model: | Hypermotard 820 | TT-R 250 | YDS-1 |
| Years: | 2013 | 2001- | 1959-61 |
| Engine: | Four stroke, Testastretta 11° L-Twin, 4 Desmodromically actuated valves per cylinder | Four stroke, single cylinder, DOHC, 4-valve per cylinder. | Two stroke, piston-port, parallel twin |
| Capacity: | 821 cc / 50.1 cu-in | 249 cc / 15.1 cu-in | 247 cc / 15.0 cu-in |
| Bore x Stroke: | 88 x 67.5 mm | 73 x 59.6 mm | 54 x 54 mm |
| Cooling System: | Liquid cooled | Air-cooled | Air-cooled |
| Compression Ratio: | 12.8:1 | 10.3:1 | |
| Induction: | Magneti Marelli electronic injection, 52mm throttle body, ride-by-wire | TEIKEI Y30P carb | Single carburetor |
| Starting: | Electric | Electric | Kick |
| Max Power: | 80.9 kW / 110 hp @ 9250 rpm | 28 hp / 20.6 kW @ 8500 rpm | 18 hp @ 7500 rpm |
| Max Torque: | 89.2 Nm / 9.1kgf-m / 65.8 ft-lb @ 7750 rpm | 2.8 kgf-m / 27.1 Nm / 20.0 lb-ft @ 7000 rpm | 5.2 kgf-m @ 6000 rpm |
| Transmission: | 6 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain #530; front sprocket 15; rear sprocket 45 | Chain | Chain |
| Front Suspension: | Kayaba 43 mm upside-down fork | Telescopic forks, Coil air spring oil damper | Telescopic forks |
| Rear Suspension: | Progressive with adjustable Sachs monoshock. Single-sided swingarm in aluminum | Monocross, Single shock, link-type, w/adjustable preload | Swing arm |
| Front Brakes: | 2 x 320 mm Semi-floating discs, Brembo Monobloc M4-32 radially mounted 4-piston calipers with ABS | Single 245mm disc | Drum |
| Rear Brakes: | Single 245 mm disc, 2-piston caliper with ABS | Single 220mm disc | Drum |
| Front Tyre: | 120/70 ZR17 | 3.00-21 | 3.00 -18 |
| Rear Tyre: | 180/55 ZR17 | 4.60-18 | 3.00 -18 |
| Fuel Capacity: | 16 L / 4.2 US gal / 3.5 Imp gal | 10.2 Litres / 2.7 US gal |