Comparison of Big Dog K-9 2011 and Big Dog Mastiff 2009 [S]ave
| Attribute |  Big Dog Mastiff 2009 × |  Big Dog K-9 2011 × |
|---|---|---|
| General | ||
| Production from (year) | 2009 | 2011 |
| Make | Big Dog | Big Dog |
| Model | Big Dog Mastiff | Big Dog K-9 |
| Category | Custom / cruiser | Custom / cruiser |
| Engine and transmission | ||
| Engine type | V2, four-stroke | V2, four-stroke |
| Fuel system | Carburettor. Optional electronic injection. | Carburettor. Optional CLEFI injection. |
| Engine details | - | 45 degree V-Twin |
| Displacement (cm³) | 1,917 | 1,917 |
| Transmission type,final drive | Belt | Belt |
| Bore (mm) | 104.8 | 104.8 |
| Stroke (mm) | 111.1 | 111.1 |
| Gearbox | 6-speed | 6-speed |
| Fuel control | Overhead Valves (OHV) | Overhead Valves (OHV) |
| Ignition | Electronic Single Fire | - |
| Compression | 9.6:1 | 9.6:1 |
| Chassis | ||
| Front suspension | Telescopic | 41 mm Telescopic fork |
| Front brakes | Single disc. 4-piston diff bore | Single disc. 4-piston diff bore |
| Rear brakes | Single disc. 4-piston | Single disc. 4-piston |
| Front tyre | 120/70-21 | MH90-21 |
| Rear tyre | 300/35-18 | 300/35-R18 |
| Trail (mm) | 122 | 111 |
| Rake (fork angle) (degree) | 39 | 39 |
| Other | ||
| Starter | Electric | Electric |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,969 | 2,083 |
| Dry weight (kg) | 321 | 318 |
| Overall length (mm) | 2,616 | 2,743 |
| Seat height (mm) | 616 | 616 |
| Ground clearance (mm) | 102 | 102 |
| Performance | ||
| Reserve fuel capacity (l) | 2.64 | 1.5 |
| Fuel capacity (l) | 17.78 | 16.6 |
| Oil capacity (l) | 2.8 | 2.8 |
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