Big Dog Mastiff - 2011 Specifications and Reviews

The 2011 Big Dog Mastiff is a heavyweight cruiser designed for riders seeking classic American styling and commanding presence. Known for its imposing 321 kg frame, extended wheelbase, and low seat height, it delivers a stable, comfortable ride for long-distance cruising. The Mastiff appeals to experienced riders who prioritize iconic design and leisurely road touring over performance.

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General information

CategoryCustom / cruiser
Year2011
ModelBig Dog Mastiff

Engine and Transmission Specifications

Driveline6-Speed BDM Balance Drive.
Transmission type,final driveBelt
Gearbox6-speed
Fuel controlOHV
Fuel systemCarburettor
Bore x stroke104.0 x 111.1 mm (4.1 x 4.4 inches)
Compression9.6:1
Engine typeV2, four-stroke
Capacity:1917.00 ccm (116.98 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc. 4-piston
Front brakesSingle disc. 4-piston diff bore
Rear tyre dimensions300/35-18
Front tyre dimensionsMH120-21
Rear suspensionHidden shocks
Front suspensionTelescopic fork
Trail122 mm (4.8 inches)
Rake (fork angle)39.0°
 
 

Physical measures and capacities

Oil capacity2.70 litres (0.18 quarts)
Reserve fuel capacity2.70 litres (0.71 gallons)
Fuel capacity17.40 litres (4.60 gallons)
Wheelbase1,969 mm (77.5 inches)
Ground clearance102 mm (4.0 inches)
Overall length2,616 mm (103.0 inches)
Seat height616 mm (24.3 inches) If adjustable, lowest setting.
Dry weight321.0 kg (707.7 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsBlue
Factory warranty2 year
StarterElectric

Performance Profile & Rider Fit

5.5s
0-60 mph (est.)

Best For

Track10%
City35%
Cornering25%
Daily Riding45%
Touring50%
Passenger40%

Rider Profile

Best ForBest suited to riders who already have experience handling heavy, low-slung custom cruisers with a big stretched-out wheelbase.
PurposeBuilt as a bold styling statement and boulevard cruiser rather than a performance or utility machine.
Rider FitThe low 616mm seat height makes it approachable for shorter riders, but the 321kg dry weight demands strength and confidence at low speed and when maneuvering or parking.
CharacterA rumbling, big-inch V-twin custom with laid-back ergonomics, raked-out front end, and unmistakable American chopper-inspired presence.
Not Ideal ForNot a good fit for riders wanting agile cornering, off-road capability, or a sporty, high-rev riding experience.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2011 Big Dog Mastiff Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 616mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2011 Big Dog Mastiff, with a cramped knee angle of around 70 degrees and a slightly forward riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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