BMW M 1000RR (2025) vs Moto Guzzi Stelvio 1200 (2010) vs Harley-Davidson Aermacchi / Harley Davidson SX 175 (1975) vs Ducati 48/50 Brio (1963-67)
Comparison technical specifications
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| Make: | BMW | Moto Guzzi | Harley-Davidson | Ducati |
| Model: | M 1000RR | Stelvio 1200 | Aermacchi / Harley Davidson SX 175 | 48/50 Brio |
| Years: | 2025 | 2010 | 1975 | 1963-67 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 titanium valves per cylinder and BMW ShiftCam | Four stroke, 90° V twin, longitudinally mounted, OHV, 4 valve per cylinder. | Two stroke, single cylinder | Two-stroke, single cylinder, piston port |
| Capacity: | 999 cc / 60.9 cu-in | 1151 cc / 70.2 cu-in | 174 | 47.6 cc / 2.9 cu in |
| Bore x Stroke: | 80 x 49.7 mm | 95 x 81.2 mm | 61 x 59.6 mm | 38 x 42 mm |
| Cooling System: | Air/Water/Oil cooled | Air cooled | Air cooled | Fan cooled |
| Compression Ratio: | 14.5:1 | 11.0:1 | 10.7:1 | 7.0:1 |
| Starting: | Electric, 0.8 kW | Electric | Primary kick | Kick |
| Max Power: | 160 kW / 214 hp @ 14500 rpm | 102 hp / 75 kW @ 7000 rpm | 1.1 kW / 1.5 hp @ 5200 rpm | |
| Clutch: | Multiplate clutch in oil bath, anti-hopping clutch | single-disc with integrated anti-vibration buffer | Wet, multi plate | Wet, multiplate |
| Transmission: | Claw-shifted 6-speed gearbox with straight cut gears | 6 Speed | 5 Speed | Three speed |
| Final Drive: | Chain 525 17/46 | Shaft | Chain | Chain |
| Front Suspension: | 45mm Upside-down telescopic fork, spring preload, rebound and compression stages adjustable | Completely adjustable upside-down fork spring preload and hydraulic compression and rebound damping with mounting bracket for radial brake calliper, | Oil damper Ceriant telescopic fork | Swinging shackle fork |
| Rear Suspension: | Aluminium swing arm, full floater pro, compression and rebound damping adjustable, adjustable spring preload | Single-sided swing-arm with progressive linkage and monoshock with adjustable hydraulic rebound and dial for setting spring preload | Pivoted fork and Betor dampers 3-way adjustment | Swingarm, dual rubber shocks |
| Front Brakes: | M 2x 320mm discs, M Brake 4-piston fixed caliper | 2x 320mm discs 4 piston caliper, ABS | Drum | Drum, 105 mm |
| Rear Brakes: | M single 220 mm disk, 2-piston fixed caliper | Single 282mm disc 2 piston caliper, ABS | Drum | Drum, 105 mm |
| Dry Weight: | 171 kg / 377 lbs | 251 kg / 553.3 lbs | 112 kg / 247 lbs | 63.5 kg / 140 lbs |