Kawasaki GPZ 305 (1984-) vs MV Agusta Brutale 1000RR (2020) vs MV Agusta F3 675 (2017-18) vs BMW R 12 (1935-42) vs AJS DD125E Mk3 (2012-14)
Comparison technical specifications
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| Make: | Kawasaki | MV Agusta | MV Agusta | BMW | AJS |
| Model: | GPZ 305 | Brutale 1000RR | F3 675 | R 12 | DD125E Mk3 |
| Years: | 1984- | 2020 | 2017-18 | 1935-42 | 2012-14 |
| Engine: | Four stroke Parallel twin, SOHC, 2 valves per cylinder | Four stroke, transverse four cylinder, DOHC, radial valves, 4 valves per cylinder | Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder, | Four stroke, two cylinder flat twin, SV | Twin cylinder, 4-stroke |
| Capacity: | 306 cc / 18.7 cu-in | 998 cc / 60.9 cu-in | 675 cc / 41.1 cu-in | 745 | 124 cc / 7.6 cub in |
| Bore x Stroke: | 61.0 x 52.4 mm | 79 x 50.9 mm | 79 x 45.9 mm | 78 x 78 mm | 44 x 40 mm |
| Cooling System: | Air cooled | Cooling with separated liquid and oil radiators | Liquid Cooled | Air cooled | Air cooled |
| Starting: | Electric | Electric | Electric | Kick | Electric |
| Max Power: | 19.9 kW / 26.6 hp @ 10000 rpm | 208 hp / 153 kW @ 13000 rpm | 94.2 kW / 128 hp @ 14400 rpm | 14.9 kW / 20hp @ 4000 rpm (Single Carburetor model: 13.4 kW / 18hp @ 3400 rpm) | 8 kW / 11 hp |
| Clutch: | Wet clutch | Wet, multi-disc with back torque limiting device and Brembo radial pump/lever assembly | Wet, multiple discs, cable operated | Double plate dry clutch | Wet, multi-plate |
| Transmission: | 6 Speed | Cassette style, 6 speed, constant mesh | 6 Speed | 4 Speed | 5-Speed |
| Final Drive: | Belt | Chain | Chain | Shaft | Chain |
| Front Suspension: | Telescopic forks | 43mm Öhlins Nix EC hydraulic “upside down” front forks with TiN superficial treatment, completely adjustable with electronically controlled compression and rebound damping with manually controlled spring preload | 43mm “UPSIDE - telescopic hydraulic fork with rebound-compression damping and spring preload external and separate adjustment, | Telescopic fork | Telescopic forks |
| Rear Suspension: | Swing arm | Progressive, single shock absorber Öhlins EC TTX completely adjustable with electronically controlled compression and rebound damping and spring preload, aluminium alloy single sided swing arm | Progressive, single shock absorber with rebound and compression (High speed/ Low speed) damping and spring preload adjustment | Rigid, spring loaded saddle | Twin oil damped adjustable shocks |
| Rear Brakes: | Drum | Single 220mm disc, Brembo 2 pistons caliper | Single 220mm disc, single piston calipers | ∅200mm Drum | Single disc |
| Front Tyre: | 90/90-18 | 120/70 - ZR 17 M/C (58 W) | 120/70-ZR17 | 3.00 x 19" | 90/90-18 |
| Rear Tyre: | 110/80-18 | 200/55 - ZR 17 M/C (78 W) | 190/55-ZR17 | 3.50 x 19" | 130/90-15 |
| Fuel Capacity: | 16.5 Litres / 4.3 US gal | 16 Litres / 4.23 US gal | 16 Litres / 4.2 US gal | 14 L / 3.7 US gal | 14 L / 3.7 US gal |