Harley-Davidson Dyna Fat Bob - 2013 Specifications and Reviews

The 2013 Harley-Davidson Dyna Fat Bob is a custom cruiser built for riders seeking aggressive styling and raw V-twin power. Its 1688cc Twin Cam 103 engine delivers substantial torque ideal for low-end riding, while the fat tire design and low-slung stance define its rebellious character. Known for combining classic Harley cruiser heritage with modern performance, it appeals to experienced riders wanting commanding presence and straightforward thrills.

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General information

CategoryCustom / cruiser
Year2013
ModelHarley-Davidson Dyna Fat Bob

Engine and Transmission Specifications

Exhaust systemChrome, “Tommy Gun” 2-1-2 collector exhaust with dual mufflers
Greenhouse gases129.9 CO
Fuel consumption5.60 litres/100 km (17.9 km/l or 42.00 mpg)
DrivelinePrimary chain, 34/46 ratio
ClutchMulti-plate with diaphragm spring in oil bath
Transmission type,final driveBelt
Gearbox6-speed
Cooling systemAir
Fuel systemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Bore x stroke98.4 x 111.3 mm (3.9 x 4.4 inches)
Compression9.6:1
Torque135.60 Nm (13.8 kgf-m or 100.0 ft.lbs) @ 3500
Engine detailsAir-cooled, Twin Cam 103™
Engine typeV2, four-stroke
Capacity:1687.97 ccm (103.00 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsMachined, Aluminum Slotted Disc
Rear brakesSingle disc. 2-piston torque-free floating
Front brakesDouble disc. 4-piston fixed
Rear tyre dimensions180/70-B16
Front tyre dimensions130/90-B16
Trail124 mm (4.9 inches)
Rake (fork angle)29.0°

Physical measures and capacities

Oil capacity2.80 litres (0.18 quarts)
Fuel capacity18.93 litres (5.00 gallons)
Wheelbase1,621 mm (63.8 inches)
Ground clearance124 mm (4.9 inches)
Overall length2,329 mm (91.7 inches)
Seat height663 mm (26.1 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc320.2 kg (706.0 pounds)
Dry weight305.3 kg (673.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsNorth America security system includes immobilizer; outside North America the security system includes immobilizer and siren.
Color optionsMidnight Pearl, Candy Orange, Vivid Black, Black Denim.
LightHigh beam, directional light bar, neutral, low oil pressure, engine diagnostics, turn signals, security system(optional), 6-speed, low fuel warnings
InstrumentsTank-mounted electronic speedometer with odometer, time-of-day clock on odometer, dual tripmeter, RPM/Gear display, fuel gauge with low fuel warning light and countdown feature, low oil pressure indicator light, engine diagnostics readout, LED indicator lights, 6-speed indicator light
StarterElectric

Performance Profile & Rider Fit

80 hp
Peak Power
4.8s
0-60 mph

Best For

Track10%
City45%
Cornering35%
Daily Riding55%
Touring45%
Passenger50%

Rider Profile

Best ForBest suited to riders who already have some experience with heavy, low-slung cruisers and are comfortable managing weight at low speed.
PurposeBuilt for laid-back boulevard cruising and style-focused riding rather than outright performance or long-distance touring.
Rider FitThe low seat height and wide handlebar suit riders of average to tall height, but the substantial wet weight demands reasonable strength for maneuvering at a standstill.
CharacterA muscular, blacked-out custom cruiser with fat tires and a punchy V-twin that rewards relaxed, torque-driven riding over aggressive cornering.
Not Ideal ForNot a good fit for riders seeking sharp handling, off-road capability, or a nimble machine for tight, technical roads.

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

Rider Fit Visualizer

2013 Harley-Davidson Dyna Fat Bob Rider Ergonomics Assessment

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

Feet:

At 663mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2013 Harley-Davidson Dyna Fat Bob, with a cramped knee angle of around 70 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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