| Big Dog Mastiff | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, 45-degree V-Twin, OHV, 2 valves per cylinder | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 1916 cm3 | - |
| Bore X Stroke | |
| 4.1x4.4 in OR 104 mm | - |
| Compression Ratio | |
| 9.6:1 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Fuel System | |
| S&S carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 6-speed, manual | - |
| Clutch | |
| wet multi-disc, manual | - |
| Final Drive | |
| belt | - |
| chassis specs | |
| Frame | |
|---|---|
| steel | Aluminium frame |
| Front Suspension | |
| 41 mm telescopic fork | - |
| Rear Suspension | |
| hard-tail, hidden shocks | - |
| Front Brake | |
| single disc, 4-piston caliper, PM | - |
| Rear Brake | |
| single disc, 4-piston caliper, PM | - |
| dimension specs | |
| Seat Height | |
|---|---|
| 25.5 in OR 648 mm | - |
| Ground Clearance | |
| 4.5 in OR 114 mm | - |
| Weight | |
| 642 lbs OR 291 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 4.5 gallons OR 17.0 L | - |
| Wheelbase | |
| 72.5 in OR 1842 mm | - |
| tyres specs | |
| Front | |
|---|---|
| MH120/70-21 | - |
| Rear | |
| 250/40 -18 | - |
