BIG DOG MOTORCYCLESSEARCH INVENTORY:MODEL COMPARISON:(see below) |
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| 2007 MODEL COMPARISON |
 K-9 |
 Bulldog |
 Chopper |
 Mastiff |
 Pitbull |
 Ridgeback |
| Warranty | 2 year factory warranty | 2 year factory warranty | 2 year factory warranty | 2 year factory warranty | 2 year factory warranty | 2 year factory warranty |
| Dry Weight | 710 lbs | 728 lbs | 665 lbs | 712 lbs | 653 lbs | 654 lbs |
| Engine | OHV 45 degree V-Twin |
OHV 45 degree V-Twin |
OHV 45 degree V-Twin |
OHV 45 degree V-Twin |
OHV 45 degree V-Twin |
OHV 45 degree V-Twin |
| Displacement | 117 cu. in (1916 c.c.) |
117 cu. in (1916 c.c.) |
117 cu. in (1916 c.c.) |
117 cu. in (1916 c.c.) |
117 cu. in (1916 c.c.) |
117 cu. in (1916 c.c.) |
| Bore X Stroke | 4 1/8" X 4 3/8" | 4 1/8" X 4 3/8" | 4 1/8" X 4 3/8" | 4 1/8" X 4 3/8" | 4 1/8" X 4 3/8" | 4 1/8" X 4 3/8" |
| Compression Ratio | 9.6:1 | 9.6:1 | 9.6:1 | 9.6:1 | 9.6:1 | 9.6:1 |
| Fuel Capacity Main/Reserve |
4.0 gal/.4 gal | 3.0 gal/1.6 gal | 3.4 gal/.4 gal | 3.9 gal/.7 gal | 3.9 gal/.7 gal | 4.0 gal/.4 gal |
| Oil Capacity | 3.0 quarts | 3.0 quarts | 3.0 quarts | 3.0 quarts | 3.0 quarts | 3.5 quarts |
| Transmission | Baker 6-speed | Baker 6-speed | Baker 6-speed | Baker 6-speed | Baker 6-speed | Baker 6-speed |
| Primary Drive | Chain | Chain | Chain | Chain | Chain | Chain |
| Final Drive | Belt (1 1/8") | Belt (1 1/8") | Belt (1 1/8") | Belt (1 1/8") | Belt (1 1/8") | Belt (1 1/8") |
| Frame Stretch | 8" Downtube; 4" Backbone |
0" Downtube; 6" Backbone |
7" Downtube; 3" Backbone |
Stock Downtube; 6" Backbone |
6" Overstandard Backbone; 1" Understandard Downtube |
8" Downtube; 4" Backbone |
| Tube Length | 12" OS | 2" OS | 10" OS | 2" OS | 2" OS | |
| Frame Rake | 39 Degrees | 39 Degrees | 37 Degrees | 39 Degrees | 39 Degrees | 39 Degrees |
| Rear Suspension | Hidden Shocks | Hidden Shocks | Hidden Shocks | Hidden Shocks | None | None |
| Front Suspension | 41mm Telescopic | 56mm Inverted | 41mm Telescopic | 41mm Telescopic | 41mm Telescopic | 41mm Telescopic |
| Seat Height | 24.25" | 24.25" | 25" | 24.25" | 24.25" | 24.25" |
| Ground Clearance | 4" | 4" | 4.5" | 4" | 4" | 4" |
| Wheel Base | 82" | 77.5" | 77.5" | 77.5" | 77.5" | 82" |
| Total Length | 108" | 103" | 104" | 103" | 103" | 108" |
| Front Brake | 4-Piston Caliper Differential Bore |
4-Piston Caliper Differential Bore |
4-Piston Caliper Differential Bore |
4-Piston Caliper Differential Bore |
4-Piston Caliper Differential Bore |
4-Piston Caliper Differential Bore |
| Rear Brake | 4-Piston Caliper | 4-Piston Caliper | 4-Piston Caliper | 4-Piston Caliper | 4-Piston Caliper | 4-Piston Caliper |
| Front Tire | MH90X21 | MH120/70X21 | MH90X21 | MH120/70X21 | MH120/70X21 | MH90X21 |
| Rear Tire | 300/35X18 | 300/35X18 | 250/40X18 | 300/35X18 | 300/35X18 | 300/35X18 |
| Tire Pressure | Front: 34psi Rear: 40psi |
Front: 34psi Rear: 40psi |
Front: 34psi Rear: 40psi |
Front: 34psi Rear: 40psi |
Front: 34psi Rear: 40psi |
Front: 34psi Rear: 40psi |
| Ignition | Electronic Single Fire | Electronic Single Fire | Electronic Single Fire | Electronic Single Fire | Electronic Single Fire | Electronic Single Fire |