Ducati 900 SS (1977) vs Yamaha YZF 1000 R1 (2015) vs Ducati 48 Rolly (1968)
Comparison technical specifications
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| Make: | Ducati | Yamaha | Ducati |
| Model: | 900 SS | YZF 1000 R1 | 48 Rolly |
| Years: | 1977 | 2015 | 1968 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Two stroke, single cylinder, piston-port |
| Capacity: | 864 cc / 52.7 cu in | 998 cc / 60.9 cu-in | 47.6 cc / 2.9 cu in |
| Bore x Stroke: | 86 x 74.4 mm | 79.0 x 50.9 mm | 38 x 42 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Induction: | 2 x Dell'Orto PHM 40 A, B or C carburetors | Fuel Injection with YCC-T and YCC-I | Dell'Orto UA18S |
| Ignition: | Electronic | TCI: Transistor Controlled Ignition | 6V 18W Flywheel magneto |
| Starting: | Kick (electric as an option) | Electric | Kick |
| Max Power: | 49.2 kW / 67 hp @ 7500 rpm | 147.1 kW / 200.0 PS @ 13500 rpm | 3.3 kW / 4.5 hp @ 5200 rpm |
| Clutch: | Wet, multiplate | Wet, Multiple Disc | Wet, multiplate |
| Transmission: | 5 Speed | 6-speed w/multiplate slipper clutch | Single speed |
| Final Drive: | Chain | "O" ring chain | Chain |
| Front Suspension: | 38 mm Marzocchi fork | 43mm KYB® inverted fork; fully adjustable | Telescopic fork |
| Rear Suspension: | Marzocchi 310 mm dual shocks, 3-way adjustable | KYB® Single shock w/piggyback reservoir, 4-way adjustable | Rigid, spring loaded saddle |
| Front Brakes: | 2 x 280mm Disc, 1 piston caliper | 2x 320mm discs 4 piston calipers, UBS ABS | Drum, 90 mm |
| Rear Brakes: | Single 229 mm disc | Single 220mm disc 1 piston caliper, UBS ABS | Drum, 90 mm |