Laverda 500 Zeta (1978) vs Suzuki Boulevard C50T (2009-10) vs Moto Guzzi 850 Le Mans Mark III (1983) vs Buell / EBR Buell M2 Cyclone MK1 (1997-99)
Comparison technical specifications
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| Make: | Laverda | Suzuki | Moto Guzzi | Buell / EBR |
| Model: | 500 Zeta | Boulevard C50T | 850 Le Mans Mark III | Buell M2 Cyclone MK1 |
| Years: | 1978 | 2009-10 | 1983 | 1997-99 |
| Engine: | Four stroke, parallel twin cylinders, DOHC, 4 valve per cylinder | Four stroke, 45° V-Twin | Four stroke, 90° V twin, longitudinally mounted, OHV pushrod, 2 valves per cylinder | 45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder. |
| Capacity: | 497 cc / 30.2 cu-in | 805cc / 49.1 cu-in | 844 cc / 51.5 cu-in | 1203 cc / 73.4 cu in |
| Bore x Stroke: | 72 x 61 mm | 83 x 74.4 mm | 83 x 78 mm | 88.8 x 96.8 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Air cooled |
| Compression Ratio: | 9.0:1 | 9.4:1 | 9.8:1 | 10.0:1 |
| Induction: | 2x 32mm Dell'Orto carburetors | Mikuni BDSR34 | 2x 36mm Dell'Orto carburetors with accelerator pump, with air filtering and inlet silencer | Ø40mm Keihin CV carburetor |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 44 hp / 32.1 kW @ 9500 rpm | 33.6 kW / 45.1 hp @ 4000 rpm | 76 hp / 56 kW @ 7700 rpm | 68.2 kW / 93.5 hp @ 6100 rpm |
| Max Torque: | 44.7 Nm / 33 lb-ft @ 5200 rpm | 62 Nm / 6.3 kgf-m / 45.7 ft-lb @ 4000 rpm | 74.5 Nm / 54.9 lb-ft @ 6200 rpm | 113 Nm / 11.5 kgf-m / 83.3 ft.lb @ 5600 rpm |
| Transmission: | 6 Speed | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Shaft | Shaft | Kevlar belt |
| Front Suspension: | Marzocchi forks | Telescopic forks, coil spring oil damping | 35mm Telescopic air assisted forks | Ø43mm Showa forks with adjustable rebound damping and preload |
| Rear Suspension: | Swinging arm fork, adjustable Marzocchi shock absorbers. | Link-type single shock, 7-way adjustable preload | Dual charged shocks, spring preload adjustable | Showa shock absorber under engine, adjustable spring preload and compression damping |
| Front Brakes: | 2x 260mm discs 2 piston calipers | Single 300 mm disc 2 piston caliper | 2x 300mm discs 2 piston calipers | Single Ø340 mm disc, 6 piston caliper |
| Rear Brakes: | Single 260mm disc 1 piston caliper | Drum, 180 mm | Single 242mm disc 2 piston caliper | Single Ø230 mm disc, 2 piston caliper |
| Front Tyre: | 90/90 S18 | 130/90-16M/C 67H | 100/90 V18 | 120/70-17 |
| Rear Tyre: | 110/90 H18 | 170/80-15M/C 77H | 110/90 V18 | 170/60-17 |
| Dry Weight: | 172 kg / 379 lbs | 246 kg / 542 lbs | 206 kg / 454 lbs | 197 kg / 434 lbs |
| Fuel Capacity: | 14.5 Litres / 3.8 US gal | 15.5 Litres / 4.1 US gal | 25 Litres / 6.0 US gal | 15 L / 4.0 US gal |