Cagiva K3 50 (1991-93) vs Honda CM 400T (1980) vs BMW R 60/7 (1976-81) vs BMW G 450X Factory Replica (2009) vs Kawasaki GPz 500S / EX 500R Ninja (1991-92) vs Matchless G12 (all models) (1958-66)
Comparison technical specifications
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| Make: | Cagiva | Honda | BMW | BMW | Kawasaki | Matchless |
| Model: | K3 50 | CM 400T | R 60/7 | G 450X Factory Replica | GPz 500S / EX 500R Ninja | G12 (all models) |
| Years: | 1991-93 | 1980 | 1976-81 | 2009 | 1991-92 | 1958-66 |
| Engine: | Two stroke, single cylinder | Four stroke, parallel twin, OHC, 3 valve per cylinder | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four stroke, single cylinder, DOHC, 4 valve | Four stroke, parallel twin cylinders. DOHC, 4 valves per cylinder. | Twin cylinder |
| Capacity: | 49 cc / 3.8 cu-in | 395 cc / 24.1 cu-in | 599 cc / 36.6 cu in. | 449 cc / 27.4 cub. in. | 498 cc / 30.4 cu-in | 646 cc / 39.4 cub in. |
| Bore x Stroke: | 38 x 44 mm | 70.5 x 50.6 mm | 73.5 x 70.6 mm | 98 x 59 mm | 74 x 58 mm | 72 x 79.3 mm |
| Compression Ratio: | 6.3:1 | 9.3:1 | 9.2:1 | 12.0 :1 | 10.8:1 | G12/de Luxe: 7.5:1 CS/CSR: 8.5:1 |
| Starting: | Electric | Electric | Electric | Electric | Kick | |
| Transmission: | 6 Speed for the models of Portugal and Austria 1st: 11/37 (3,363) 2nd: 14/29 (2,071) 3rd: 17/26 (1,529) 4th: 19 / 23 (1,210) 5th: 21/22 (1,047) 6th: 23/21 (0.913) | 5 Speed | 4 Speed | 5 Speed | 6 Speed | 4-Speed |
| Final Drive: | Chain | Chain | Shaft | Chain | Chain | Chain, 97 links |
| Front Suspension: | 37mm Marzocchi hydraulic telescopic forks | Telehydraulic forks | Telescopic hydraulic forks | 45mm Upside-down forks | 38mm Telescopic forks | AMC teledraulic fork |
| Rear Suspension: | Swinging arm "Boge" adjustable shock absorber preload | Swingarm fork with adjustable telehydraulic shocks. | Long swinging arm with strut | Direct Mounted Öhlins Shock | Swinging arm, single shock adjustable for spring preload | Swingarm with twin shocks, Girling |
| Front Brakes: | Single 220mm disc | Single disc | ∅200mm Drum | Single 260mm disc, 2 piston floating caliper | Single 270mm disc 2 piston caliper | Drum, 7in. sls |
| Rear Brakes: | Single 220mm disc | Drum | ∅200mm Drum | Single 220mm disc, 1 piston floating caliper | 160mm drum | Drum, 7in. sls |
| Front Tyre: | 2.50-21 | 3.50-18 | 3.25 - S19 | 90/90-21 | 100/90-16 | 3.25 x 19 in. |
| Rear Tyre: | 4.00-17 | 4.60-16 | 4.00 - S18 | 140/80-18 | 120/90-16 | 3.50 x 19 in. |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 9.5 Litres / 2.5 US gal | 24 liters / 6.3 US gal | 8 Litres / 2.1 US gal | 15.9 Litres / 4.2 US gal | 17 L / 4.5 US gal |