2008 Harley-Davidson FXDB Dyna Street Bob Technical Analysis & Specification Breakdown
Built around Harley-Davidson's custom - cruiser motorcycle platform, the 2008 Harley-Davidson FXDB Dyna Street Bob relies on a 1573.3 cc (96 cu in) air-cooled v2, four-stroke powerplant. In factory specification, maximum torque reaches 123.4 Nm (91 lb-ft) at 3,125 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 95.3 x 111.3 mm (3.8 x 4.4 inches) with a 9.2:1 compression ratio.
On the scales, the FXDB Dyna Street Bob measures 302.5 kg (667 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 681 mm (26.8 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,631 mm (64.2 in) wheelbase engineered for planted straight-line stability. The 18.16-liter (4.8 US gal) fuel tank paired with a rated consumption of 4.35 L/100 km provides an estimated theoretical range of roughly 417 km (259 miles) between fill-ups.
Within MotoLibrary's Harley-Davidson archive, this model family spans 3 indexed model years from 2007 to 2009, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~417 km (259 mi)
Engine
Displacement1573.3 ccm (96.00 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Torque123.4 Nm (12.6 kgf-m or 91.0 ft.lbs) @ 3125 RPM
Compression9.2:1
Bore x Stroke95.3 x 111.3 mm (3.8 x 4.4 inches)
Fuel SystemInjection. Electronic Sequential Port Fuel Injection
CoolingAir
Transmission
Gearbox6-speed
Final DriveBelt (final drive)
ClutchMulti-plate with diaphragm spring in oil bath
Performance
Fuel Consumption4.35 litres/100 km (23.0 km/l or 54.07 mpg)
Greenhouse Gases100.9 CO2 g/km. (CO2 - Carbon dioxide emission)
Seat Height681 mm (26.8 inches) If adjustable, lowest setting.
Overall Length2357 mm (92.8 inches)
Fuel Capacity18.16 litres (4.80 US gallons)
Other
StarterElectric
Color OptionsVivid Black, Black Denim, Pewter Denim, Crimson Red Denim (New), Dark Blue Denim (New), Two-Tone Olive Pearl Denim/Black Denim (New)
Notes
Mini ´ape-hanger´ handlebar; Fat Bob® fuel tank; black and polished powertrain; low seat height-25.8´; ribbed solo seat; single, tank-mounted speedometer; wrinkle black fuel tank console with indicator lights
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
