Harley-Davidson FXDB Dyna Street Bob - 2009 Specifications and Reviews

The 2009 Harley-Davidson FXDB Dyna Street Bob is a stripped-down custom cruiser designed for riders seeking classic styling with modern reliability. Powered by a 1584cc V-twin engine producing 123 lb-ft of torque, it delivers authentic Harley character with fuel injection efficiency. Known for its minimalist aesthetic, comfortable ergonomics, and accessible performance, it appeals to both experienced and newer cruiser enthusiasts.

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General information

CategoryCustom / cruiser
Year2009
ModelHarley-Davidson FXDB Dyna Street Bob

Engine and Transmission Specifications

Clutch9-plate, wet
Transmission typefinal driveBelt
Gearbox6-speed
Cooling systemAir
StarterElectric
Fuel systemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Bore x stroke95.3 x 111.1 mm (3.8 x 4.4 inches)
Compression9.2:1
Torque123.00
Stroke4
Engine typeV2
Capacity:1584.00 ccm (96.66 cubic inches)

Physical measures and capacities

Ground clearance142 mm (5.6 inches)
Overall length2,355 mm (92.7 inches)
Seat height655 mm (25.8 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc205.0 kg (451.9 pounds)
Dry weight290.0 kg (639.3 pounds)
 
 

Harley-Davidson FXDB Dyna Street Bob dimensions and frame

Exhaust systemChrome, staggered shorty exhaust with dual mufflers
Rear brakesSingle disc. 2-piston
Front brakesSingle disc. 4-piston
Rear tyre dimensions160/70-17
Front tyre dimensions100/90-19
Rear suspensionCoil-over shock
Front suspension49mm fork
Trail119 mm (4.7 inches)
Rake (fork angle)29.0°
Frame typeMild steel, tubular frame; rectangular section backbone; stamped,

Speed and acceleration

Color optionsVivid Black; Black Denim; Pewter Denim; Red Hot Denim; Dark Blue Denim
Fuel consumption pr. 10 km (6.2 miles)5.50 litres (1.45 gallons)
Fuel capacity18.20 litres (4.81 gallons)

Other specs

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

Performance Profile & Rider Fit

5.5s
0-60 mph (est.)

Best For

Track10%
City60%
Cornering45%
Daily Riding55%
Touring40%
Passenger35%

Rider Profile

Best ForSuits riders with at least some experience handling a heavy, torque-driven cruiser, though the low seat height keeps it approachable for newer riders too.
PurposeBuilt for stripped-down, stylish street cruising rather than outright speed or long-distance touring.
Rider FitThe low 655mm seat height and manageable dry weight for a big V-twin make it accessible to riders of varying statures, though the wide bars and low-slung stance suit taller riders best for relaxed ergonomics.
CharacterA bare-bones, blacked-out bobber persona with a big air-cooled V-twin rumble, favoring attitude and torque over refinement or high-speed thrills.
Not Ideal ForNot ideal for riders wanting sharp cornering agility, sport-level acceleration, or serious off-road or highway touring comfort.

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

Rider Fit Visualizer

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

Feet:

At 655mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2009 Harley-Davidson FXDB Dyna Street Bob, with a cramped knee angle of around 70 degrees and an upright riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). 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 (2)

STRUCTURE:MOTORCYCLE:KICKSTAND/CENTER STAND Dec 2008 · 08V659000

HARLEY-DAVIDSON IS RECALLING 3,285 MY 2009 FXD, FXDF, FXDC, FXDL, AND FXDB MOTORCYCLES. THE JIFFY STAND SPRING ANCHOR MAY HAVE BEEN BUILT WITH A DEFECTIVE WELD THAT MAY ALLOW THE JIFFY STAND ASSEMBLY TO NOT RETRACT AS INTENDED.

Risk: THIS CONDITION COULD LEAD TO A CRASH WHICH COULD CAUSE INJURY OR DEATH TO THE RIDER.

Remedy: DEALERS WILL REMOVE THE ORIGINAL JIFFY STAND SPRING ANCHOR AND REPLACE IT WITH A NEW SPRING ANCHOR FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT DECEMBER 22, 2008. OWNERS MAY CONTACT HARLEY-DAVIDSON AT 1-414-342-4680.

FUEL SYSTEM, GASOLINE:STORAGE Nov 2008 · 08V625000

HARLEY-DAVIDSON IS RECALLING 349 MY 2009 FXDB, FXDC, FXDF, AND FXDL MOTORCYCLES. THESE MOTORCYCLES HAVE A FUEL TANK VENT TUBE ASSEMBLY, PART NO. 27389-04A, WHICH MAY HAVE BEEN PRODUCED WITH A DEFECTIVE ULTRASONIC WELD ON THE ANTI-SLOSH VALVE.

Risk: IF THE VALVE SEPARATES AND THE BIKE IS TIPPED OVER, IT MAY LEAK FUEL. FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN A FIRE.

Remedy: DEALERS WILL INSPECT THE FUEL VENT TUBE ASSEMBLY AND, IF NECESSARY, REPLACE IT. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT DECEMBER 8, 2008. OWNERS MAY CONTACT HARLEY-DAVIDSON AT 1-414-343-4056.

Source: NHTSA. View all Harley-Davidson recalls →

Rider Reviews

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