Vespa 50 Elestart (1969-83) vs Suzuki GSX-R 750 750WT SRAD (1996) vs Suzuki DR 750S Big (1989)
Comparison technical specifications
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| Make: | Vespa | Suzuki | Suzuki |
| Model: | 50 Elestart | GSX-R 750 750WT SRAD | DR 750S Big |
| Years: | 1969-83 | 1996 | 1989 |
| Engine: | Two stroke, single cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, single cylinder, SOHC, 4 vaves |
| Capacity: | 49.8 cc / 3.0 cub in | 749 c / 45.7 cub. in. | 727 cc / 44.4 cu in |
| Bore x Stroke: | 38.4 x 43 mm | 72 x 46 mm | 9.5:1 |
| Compression Ratio: | 7.2:1 | 11.8:1 | 105 x 84 mm |
| Battery: | 2 x 6V - 9.5 Ah batteries | 8 Amp/hour | 12V 50.4kC, 14Ah |
| Ignition: | 4 Pole flywheel magneto | Computer controlled electronic ignition | Electronic, Suzuki PEI |
| Starting: | Electric | Electric | Electric |
| Spark Plug: | Bosch W225 T1 | NGK, CR9E | NGK DPR9EA-9 |
| Clutch: | Multi plate | Cable operated, wet multiple, coil spring | Wet, multi-plate |
| Max Power: | 1.9 kW / 2.6 Hp @ 4500 rpm | 93.3 kW / 128 hp @ 12000 rpm | 37 kW / 50 hp @ 6800 rpm (rear tyre: 34.1 kW / 45.7 hp/6500 rpm ) |
| Transmission: | 3 Speed mesh gears | 6 Speed, constant mesh | 5 Speed |
| Gear ratios: | 1st 22.33 / 2nd 12.56 /3rd 7.95:1 | 1st 2.87 / 2nd 2.06 / 3rd 1.65 / 4th 1.43 / 5th 1.26 / 6th 1.12:1 | 1 st 2.461 (32/13) / 2nd 1.578 (30/19) 3rd 1200 (24/20) / 4th 0.956 (22/23) / 5th 0.800 (20/25) |
| Final Drive: | Direct drive | #530 Chain, O-ring sealed, 108 links | Chain, DAIDO DID520VL2, 116 links |
| Front Suspension: | Hydraulic shock absorber with rubber elements | 43 mm Inverted telescopic forks, compression, rebound and preload adjustable. | 38mm Telescopic, coil spring, air damped |
| Rear Suspension: | Hydraulic shock absorber | Rising rate monoshock, compression, rebound and preload adjustable. | Full floater rising-rate monoshock with adjustable preload. |
| Front Brakes: | Drum | 2 x 310 mm discs, 6 piston calipers | Single 280 mm disc, 2 piston caliper |
| Rear Brakes: | Drum | Single 220 mm disc, 2 piston caliper | 160 mm Drum |
| Front Tyre: | 2.75 x 9" | 120/70 ZR17 | 90/90-21 54S |
| Rear Tyre: | 2.75 x 9" | 190/50 ZR17 | 130/80-17 65S |
| Ground clearance: | 210 mm / 8.3 in | 130 mm / 5.1 in | 262 mm / 10.3 in |
| Dry Weight: | 67.5 kg / 148 lbs | 179 kg / 394.6 lbs | 175 kg / 389 lbs |
| Fuel Capacity: | 5.6 L / 1.5 US gal | 18 Litres / 4.8 US gal / 3.6 Imp gal | 29 Litres / 7.7 US gal / 6.4 Imp gal |
| Top Speed: | 40 km/h /29 mph | 269.6 km/h / 167.5 mph | 168.1 km/h / 104.5 mph |