Big Dog K-9 vs MuZ Mastiff (2011)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Big Dog K-9stacks up against the MuZ Mastiff. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Big Dog K-9 | MuZ Mastiff |
|---|---|---|
| Model year | 2011 | 2011 |
| Price | $29,900 | $28,900 |
| Engine | 1917 cc | 1917 cc |
| Weight | 318 kg | 321 kg |
| Seat height | 24 mm | 24 mm |
| Fuel capacity | 4.4 L | 4.6 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 6-speed |
| Front brakes | Single disc. 4-piston Diff bore | Single disc. 4-piston Diff bore |
| Rear brakes | Single disc. 4-piston | Single disc. 4-piston |
| Tires | MH90-21 / 300/35-R18 | MH120-21 / 300/35-18 |
Big Dog K-9 vs MuZ Mastiff — which should you buy?
Picking between the Big Dog K-9 and the MuZ Mastiff usually comes down to the numbers you care about most. On paper, the Big Dog K-9 brings its published horsepower in a 318 kg package, while the MuZ Mastiff counters with its own power figure at 321 kg. On price, the MuZ Mastiff has the lower MSRP.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike:

