Harley-Davidson FLSTFB Fat Boy Lo - 2011 Specifications and Reviews

The 2011 Harley-Davidson FLSTFB Fat Boy Lo is a low-slung custom cruiser designed for riders seeking aggressive styling with accessible ergonomics. Its 1584cc Twin Cam 96B engine delivers substantial torque for effortless cruising, while the lowered stance and classic fat-tire aesthetic define the model's iconic character and appeal to traditional cruiser enthusiasts.

2011
Not Rated stars Average rating: Not Rated from 0 votes
.

General information

CategoryCustom / cruiser
Year2011
ModelHarley-Davidson FLSTFB Fat Boy Lo
 
 

Engine and Transmission Specifications

Exhaust systemOver/under shotgun exhaust with dual mufflers and
DrivelinePrimary Drive: Chain, 34/46 ratio. Final Drive: Belt, 32/66 ratio
Clutch9-plate, wet
Gearbox6-speed
Cooling systemAir
Lubrication systemPressurized, dry-sump
Fuel controlDOHC
Fuel systemInjection. Electronic Sequential Port Fuel Injection
Valves per cylinder2
Bore x stroke95.3 x 111.1 mm (3.8 x 4.4 inches)
Compression9.2:1
Torque127.00 Nm (12.9 kgf-m or 93.7 ft.lbs) @ 3000
Engine detailsTwin Cam 96B
Engine typeV2, four-stroke
Capacity:1584.00 ccm (96.66 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsBlack, Bullet Hole Disc Cast Aluminum
Rear brakes diameter292 mm (11.5 inches)
Rear brakesSingle disc. 2-piston
Front brakes diameter292 mm (11.5 inches)
Front brakesSingle disc. 4-piston
Rear tyre dimensions200/55-R17
Front tyre dimensions140/75-R17
Rear suspension travel91 mm (3.6 inches)
Rear suspensionHidden, horizontal-mounted, coil-over
Front suspension travel130 mm (5.1 inches)
Front suspension41.3mm telescopic, beer can covers
Trail147 mm (5.8 inches)
Rake (fork angle)32.0°
Frame typeMild steel tubular frame; rectangular section backbone; stamped, cast, and forged junctions; forged fender supports; MIG welded.

Physical measures and capacities

Oil capacity3.10 litres (0.20 quarts)
Fuel capacity19.70 litres (5.20 gallons)
Wheelbase1,638 mm (64.5 inches)
Ground clearance122 mm (4.8 inches)
Overall length2,395 mm (94.3 inches)
Seat height669 mm (26.3 inches) If adjustable, lowest setting.
Dry weight317.5 kg (700.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsVivid Black, Brilliant Silver Pearl, Black Denim, White Hot Denim
ElectricalSealed, maintenance-free, 12V battery.
InstrumentsTank-mounted electronic speedometer with odometer, time-of-day clock on odometer, dual tripmeter, fuel gauge with low fuel warning light and countdown feature, low oil pressure indicator light, engine diagnostics readout, LED indicator lights, 6-speed ind
StarterElectric

Performance Profile & Rider Fit

5.8s
0-60 mph (est.)

Best For

Track5%
City50%
Cornering25%
Daily Riding60%
Touring45%
Passenger40%

Rider Profile

Best ForSuited to riders who already have experience handling heavy, low-slung cruisers at low speeds.
PurposeBuilt for laid-back boulevard cruising and making a bold styling statement rather than outright performance.
Rider FitThe very low seat height makes it easy to flat-foot, but the substantial dry weight demands strength and confidence at parking-lot speeds.
CharacterA classic, chopped-look Fat Boy Lo with deep torque delivery, heavy chrome-and-black styling, and a thumping air-cooled V-twin soundtrack.
Not Ideal ForNot the right choice for riders wanting agile cornering, high-speed touring comfort, or any off-road capability.

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

Rider Fit Visualizer

2011 Harley-Davidson FLSTFB Fat Boy Lo Rider Ergonomics Assessment

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

Feet:

At 669mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2011 Harley-Davidson FLSTFB Fat Boy Lo, 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.

Find bikes that fit your height →

Rider Reviews

Add a Comment


Please Login or Register if you would like to leave a comment.