Harley-Davidson FXDF Dyna Fat Bob - 2008 Specifications and Reviews

The 2008 Harley-Davidson FXDF Dyna Fat Bob is a muscular custom cruiser built for riders seeking aggressive styling and commanding presence. Its 96-cubic-inch V-twin engine delivers strong low-end torque through a smooth 6-speed transmission, making it ideal for cruising and laid-back highway riding. Known for its fat tires and minimalist design, the Fat Bob appeals to riders wanting classic Harley character with modern fuel injection reliability.

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General information

CategoryCustom / cruiser
Year2008
ModelHarley-Davidson FXDF Dyna Fat Bob
 
 

Engine and Transmission Specifications

ClutchMulti-plate with diaphragm spring in oil bath
Transmission typefinal driveBelt
Gearbox6-speed
Cooling systemAir
StarterElectric
Fuel systemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Bore x stroke95.3 x 111.3 mm (3.8 x 4.4 inches)
Compression9.2:1
Torque123.39
Stroke4
Engine typeV2
Capacity:1573.25 ccm (96.00 cubic inches)

Physical measures and capacities

Wheelbase1,621 mm (63.8 inches)
Ground clearance124 mm (4.9 inches)
Overall length2,329 mm (91.7 inches)
Seat height688 mm (27.1 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc318.9 kg (703.0 pounds)
Dry weight303.8 kg (669.7 pounds)
 
 

Harley-Davidson FXDF Dyna Fat Bob dimensions and frame

Exhaust systemChrome, 2-1-2 collector exhaust w/ dual mufflers
Rear brakesSingle disc. 2-piston torque-free calipers
Front brakesSingle disc. 4-piston calipers
Rear tyre dimensions180/70-B16
Front tyre dimensions130/90-B16
Trail114 mm (4.5 inches)
Rake (fork angle)29.0°

Speed and acceleration

Color optionsVivid Black, Black Pearl, Dark Blue Pearl (New), Black Denim, Pewter Denim, Crimson Red Denim (New), Candy Red Sunglo (New)
Fuel consumption pr. 10 km (6.2 miles)4.43 litres (1.17 gallons)
Fuel capacity19.30 litres (5.10 gallons)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

4.8s
0-60 mph (est.)

Best For

Track15%
City55%
Cornering45%
Daily Riding60%
Touring45%
Passenger55%

Rider Profile

Best ForBest suited to riders with at least some experience handling a heavy, torque-heavy cruiser at low speeds.
PurposeBuilt for style-driven boulevard cruising and short blasts rather than outright speed or long-distance touring.
Rider FitIts low seat height and wide bars make it accessible, but the substantial wet weight demands confident strength at parking-lot speeds.
CharacterA muscular, fat-tired custom cruiser that trades cornering agility for big V-twin torque and unmistakable Dyna attitude.
Not Ideal ForNot a good fit for riders seeking sharp cornering performance, off-road capability, or dedicated long-haul touring comfort.

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

Rider Fit Visualizer

2008 Harley-Davidson FXDF Dyna Fat Bob Rider Ergonomics Assessment

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

Feet:

At 688mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2008 Harley-Davidson FXDF Dyna Fat Bob, with a cramped knee angle of around 75 degrees and an upright 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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⚠ Safety Recalls (1)

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE Nov 2007 · 07V535000

ON CERTAIN MOTORCYCLES BUILT AND SHIPPED TO CALIFORNIA, THE CATALYTIC MUFFLER PROTECTIVE HEAT SHIELD WAS NOT INSTALLED. THIS CONDITION COULD ALLOW DIRECT CONTACT WITH THIS MUFFLER AND CAUSE INJURY.

Risk: IF CONTACT OCCURS WHILE RIDING, IT COULD CAUSE LOSS OF CONTROL OF THE MOTORCYCLE, LEADING TO INJURY OR DEATH.

Remedy: DEALERS WILL INSTALL THE HEAT SHIELDS TO THE MUFFLERS FREE OF CHARGE. THE RECALL BEGAN ON NOVEMBER 26, 2007. OWNERS MAY CONTACT HARLEY DAVIDSON AT 1-414-343-4056.

Source: NHTSA. View all Harley-Davidson recalls →

Rider Reviews

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