Ducati Monster 821 Dark (2014) vs Triumph Speed Twin 1200 RS (2025) vs Honda XR 250R (1984) vs Moto Guzzi 850 Eldorado Police (1972-)
Comparison technical specifications
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| Make: | Ducati | Triumph | Honda | Moto Guzzi |
| Model: | Monster 821 Dark | Speed Twin 1200 RS | XR 250R | 850 Eldorado Police |
| Years: | 2014 | 2025 | 1984 | 1972- |
| Engine: | Four stroke, Testastretta 11° L-Twin, 4 Desmodromically actuated valves per cylinder, | Four stoke, parallel twin, 270? crank, SOHC, 4 valve per cylinder | Four-stroke, single cylinder SOHC, 4 valve, RFVC (Radial Four Valve Combustion Chamber) | Four stroke, 90° V twin, longitudinally mounted, OHV, 2 valve per cylinder |
| Capacity: | 821 cc / 50.1 cu-in | 1198 cc / 73.1 cu-in | 249 cc / 15.1 cu-in | 844 cc / 51.5 cu-in |
| Bore x Stroke: | 88 x 67.5 mm | 97.6 x 80 mm | 75 x 56.5 mm | 83 x 78 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled | Air cooled |
| Compression Ratio: | 12.8:1 | 12.1:1 | 9.3:1 | 9.2:1 |
| Induction: | Electronic fuel injection system, 53mm throttle bodies with full Ride by Wire | Multipoint sequential electronic fuel injection | 2x 24mm Keihin CV | 2x 36mm Dell'Orto VHB |
| Ignition: | Marelli electronic | Digital | CDI | Battery with double contact breaker with automatic advance |
| Starting: | Electric | Electric | Kick | Electric |
| Max Power: | 82.4 kW / 112 hp @ 9250 rpm | 77.2 kW / 103.5 hp @ 7750 rpm | 30 hp / 21.9 kW @ 9000 rpm | 64.5 hp @ 6500 rpm |
| Max Torque: | 89.4 Nm / 9.1 kgf-m / 65.8 lb-ft @ 7750 rpm | 112 Nm / 82.6 lb-ft @ 4250 rpm | 24.5 Nm @ 7500 rpm | 54.2 ft-lb / 7.5 kgf-m @ 5800 rpm |
| Transmission: | 6 Speed | 6-Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain, Front sprocket 15; Rear sprocket 46 | Chain, X-ring | Chain | Shaft |
| Front Suspension: | Kayaba 43mm upside-down fork | 43mm USD Marzocchi forks, adjustable for pre-load, compression and rebound damping | Leading axel air spring 38mm forks | Telehydraulic forks, 2-way damping |
| Rear Suspension: | Progressive linkage with adjustable monoshock. Aluminum double-sided swingarm | Twin ?hlins RSUs with external reservoirs, adjustable for pre-load, compression and rebound | Pro-link Kayaba damper adjustment for spring preload and rebound damping. | Swing-arm with 3-way adjustable shocks |
| Front Brakes: | 2 x 320 mm semi-floating discs, radially mounted Monobloc Brembo M4-32 callipers, 4-pistons, axial pump with ABS as standard | 2 x 320 mm discs, Brembo Stylema M4.30 radial calipers | Single 240mm disc 2 piston calipers | 8.7in x 1.7in Drum |
| Rear Brakes: | Single 245mm disc, 2-piston floating calliper with ABS as standard equipment | Single 220 mm disc, Nissin 2-piston floating caliper | Drum | 8.7in x 1.7in Drum |
| Front Tyre: | 120/70 ZR 17 Pirelli Diablo Rosso II | 120/70 ZR17 | 80/100-21 | 4.00 -18 |
| Rear Tyre: | 180/60 ZR17 Pirelli Diablo Rosso II | 160/60 ZR17 | 110/90-17 | 4.00 -18 |
| Seat Height: | 785 mm - 810 mm / 30.9 in - 31.9 in | 810 mm / 31.9 in | 905 mm / 35.6 in | 31 in |
| Wet Weight: | 205.5kg / 453 lbs | 216 kg / 476 lbs | 112 kg / 247 lbs | 320 kg / 705 lbs |
| Fuel Capacity: | 17.5 Litres / 4.6 US gal / 3.8 Imp gal | 14.5 Litres / 3.8 US gal | 9 Litres / 2.4 gal | 23 Litres / 6.1 US gal |