Gilera Saturno Bialbero 500 (1988-89) vs Gilera T4 (1979-80)
Comparison technical specifications
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| Make: | Gilera | Gilera |
| Model: | Saturno Bialbero 500 | T4 |
| Years: | 1988-89 | 1979-80 |
| Engine: | Four stroke, single cylinder, 4 valves | Four stroke single cylinder |
| Capacity: | 492 cc / 30.0 cu-in | 198 cc / |
| Bore x Stroke: | 92 x 74 mm | 66 x 58 mm |
| Compression Ratio: | 9.8:1 | 10.9:1 |
| Induction: | Dell'Orto PHM 40VS | Dellorto PHBH 28BS 28mm carb |
| Ignition: | CDI with rev limiter | Battery and coil |
| Starting: | Electric | Kick |
| Max Power: | 44 hp / 32.1 kW @ 7000 rpm | 17 hp @ 8000 rpm |
| Max Torque: | 4.7 kgf-m @ 6000 rpm | 1.6 kgf-m @ 6000 rpm |
| Final Drive: | Chain | Chain |
| Front Suspension: | 40mm Marzocchi forks | 30mm Telescopic fork |
| Rear Suspension: | Single Marzocchi shock preload adjustment. | Dual shocks, adjustable pre-load |
| Front Brakes: | Single 300mm disc 1 piston caliper | Single disc |
| Rear Brakes: | Single 240mm disc 1 piston caliper | 160mm drum |
| Front Tyre: | 110/70 VR17 | 2.75 -18 |
| Rear Tyre: | 140/70 VR17 | 3.25 -18 |
| Dry Weight: | 157 kg / 346 lbs | 134 kg / 295.4 lbs |
| Fuel Capacity: | 21 Litres / 5.5 US gal | 13.4 Litres / 3.5 US gal |