Suzuki GSX 250S Katana (1992) vs Suzuki GSX 400T (1981-83) vs KTM 450 EXC Six Days (2009) vs Vespa 50 Elestart (1969-83)
Comparison technical specifications
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| Make: | Suzuki | Suzuki | KTM | Vespa |
| Model: | GSX 250S Katana | GSX 400T | 450 EXC Six Days | 50 Elestart |
| Years: | 1992 | 1981-83 | 2009 | 1969-83 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder. | Four stroke, single cylinder, SOHC, 4 valves per cylinder | Two stroke, single cylinder |
| Capacity: | 249 cc / 15.2 cu in | 399 cc / 24.3 cu in | 447.9 cc / 27.42 cu-in | 49.8 cc / 3.0 cub in |
| Bore x Stroke: | 49 x 33 mm | 67 x 56.6 mm | 89 x 72 mm | 38.4 x 43 mm |
| Compression Ratio: | 12.5:1 | 9.0:1 | 11.1:1 | 7.2:1 |
| Ignition: | Digital | Transistorised | Kokusan digital | 4 Pole flywheel magneto |
| Starting: | Electric | Electric | Electric & kick | Electric |
| Transmission: | 6 Speed, constant mesh | 6 Speed | 6 Speed | 3 Speed mesh gears |
| Final Drive: | Chain | Chain | Chain, X ring, 5.8 x 1/4" | Direct drive |
| Front Suspension: | 37 mm Telescopic forks | Telescopic fork | WP 4860 MA upside-down fork | Hydraulic shock absorber with rubber elements |
| Rear Suspension: | Swingarm, dual shocks, 4-way preload and 4-way rebound damping adjustable | Dual shocks | WP-PDS shock absorber, aluminium swingarm | Hydraulic shock absorber |
| Front Brakes: | Single 300 mm disc, 2 piston caliper | Single disc | Single 260 mm disc, floating caliper | Drum |
| Rear Brakes: | Single 240 mm disc | Drum | Single 220mm disc, floating caliper | Drum |
| Dry Weight: | 160 kg / 352 lbs | 169 kg / 373 lbs | 113.5 kg / 250.2 lbs | 67.5 kg / 148 lbs |