What category is the 2009 Big Dog Mastiff?

The 2009 Big Dog Mastiff has a Category of Custom / cruiser.

What is the engine size of the 2009 Big Dog Mastiff?

The 2009 Big Dog Mastiff has a Capacity: of 1917.00 ccm (116.98 cubic inches).

What type of engine does the 2009 Big Dog Mastiff have?

The 2009 Big Dog Mastiff has a Engine type of V2.

How many gears does the 2009 Big Dog Mastiff have?

The 2009 Big Dog Mastiff has a Gearbox of 6-speed.

How much does the 2009 Big Dog Mastiff weigh?

The 2009 Big Dog Mastiff has a Dry weight of 321.1 kg (708.0 pounds).

What is the seat height of the 2009 Big Dog Mastiff?

The 2009 Big Dog Mastiff has a Seat height of 616 mm (24.3 inches) If adjustable, lowest setting..

Big Dog Mastiff - 2009 Specifications and Reviews

Name: 2009 Big Dog Mastiff
Brand: Big Dog

The 2009 Big Dog Mastiff is a heavyweight custom cruiser powered by a massive 1917cc V-twin engine, designed for riders seeking aggressive styling and commanding presence. Known for its low-slung stance and imposing design, the Mastiff appeals to cruiser enthusiasts who prioritize attitude and visual impact. Its carbureted engine and substantial 321kg weight deliver a characterful, raw riding experience typical of American custom motorcycle culture.

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2009

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General information
Category	Custom / cruiser
Year	2009
Model	Big Dog Mastiff

Engine and Transmission Specifications
Transmission typefinal drive	Belt
Gearbox	6-speed
Starter	Electric
Ignition	Electronic Single Fire
Fuel control	OHV
Fuel system	Carburettor. Optional electronic injection.
Bore x stroke	104.8 x 111.1 mm (4.1 x 4.4 inches)
Compression	9.6:1
Stroke	4
Engine type	V2
Capacity:	1917.00 ccm (116.98 cubic inches)
Physical measures and capacities
Wheelbase	1,969 mm (77.5 inches)
Ground clearance	102 mm (4.0 inches)
Overall length	2,616 mm (103.0 inches)
Seat height	616 mm (24.3 inches) If adjustable, lowest setting.
Dry weight	321.1 kg (708.0 pounds)

Big Dog Mastiff dimensions and frame
Rear brakes	Single disc. 4-piston
Front brakes	Single disc. 4-piston diff bore
Rear tyre dimensions	300/35-18
Front tyre dimensions	120/70-21
Front suspension	Telescopic
Trail	122 mm (4.8 inches)
Rake (fork angle)	39.0°
Speed and acceleration
Oil capacity	2.80 litres (0.18 quarts)
Reserve fuel capacity	2.64 litres (0.70 gallons)
Fuel capacity	17.78 litres (4.70 gallons)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

5.5s

0-60 mph (est.)

Best For

Track10%

City35%

Cornering25%

Daily Riding45%

Touring50%

Passenger40%

Rider Profile

Best For	Best suited to riders who already have experience handling heavy, low-slung custom cruisers with a big stretched-out wheelbase.
Purpose	Built as a bold styling statement and boulevard cruiser rather than a performance or utility machine.
Rider Fit	The 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.
Character	A rumbling, big-inch V-twin custom with laid-back ergonomics, raked-out front end, and unmistakable American chopper-inspired presence.
Not Ideal For	Not 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

2009 Big Dog Mastiff Rider Ergonomics Assessment

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Inseam (optional)

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Feet:

At 616mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2009 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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