Aprilia AF1 125 Project 108 Replica (1988) vs Bakker BMW R 1100RS (1993) vs Ducati 750 Sport (1974-78)
Comparison technical specifications
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| Make: | Aprilia | Bakker | Ducati |
| Model: | AF1 125 Project 108 Replica | BMW R 1100RS | 750 Sport |
| Years: | 1988 | 1993 | 1974-78 |
| Engine: | Two stroke, single cylinder, light alloy, barrel with Gilnisil coating | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven |
| Capacity: | 124.7 cc / 7.6 cu in | 1085 cc / 66.2 cu-in | 748 cc / 45.6 cu-in |
| Bore x Stroke: | 54 x 54.5 mm | 99 x 70.5 mm | 80 x 74.4 mm |
| Compression Ratio: | 15.5:1 | 10.3:1 | 9.3:1 |
| Cooling System: | Liquid cooled | Air/oil-cooled | Air cooled |
| Induction: | Dell'Orto carburetor, Ø 28 mm | Fuel injection | 2 x Dell'Orto PHF 32A carburetors |
| Ignition: | Electronic | Electronic MA 2.2 controlled by Bosch Motronic | Points and coil |
| Starting: | Electric | Electric | Kick |
| Max Power: | 21.6 kW / 29 hp @10500 rpm | 84.hp @ 7200 rpm | 45.6 kW / 62 hp @ 8200 rpm |
| Transmission: | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Shaft | Chain |
| Front Brakes: | Single Ø 320 mm disc, 4 piston caliper | 2x discs | Single 275 mm disc, Lockheed caliper |
| Rear Brakes: | Single Ø 240mm disc, 2 piston caliper | Single disc | 200 mm Drum |