Harley-Davidson FLSTFB Softail Fat Boy Lo

Harley-Davidson Softail Fat Boy
Manufacturer	Harley-Davidson
Also called	1340 Softail Fat Boy, Fat Boy Injection, FLSTFI Softail Fat Boy, FLSTFSE Screamin Eagle Fat Boy, FLSTFI Fat Boy, FLSTF Fat Boy Peace Officer, FLSTF Fat Boy Firefighter, FLSTFB Sportster Fat Boy Special, FLSTFB Fat Boy Lo, FLSTFB Softail Fat Boy Lo, FLSTF Softail Fat Boy, Fat Boy Lo110th Anniversary, Fat Boy Lo 110th Anniversary, Softail Fat Boy Special, Fat Boy S, Softail Fat Boy Lo, Softail Fat Boy S, 115th Anniversary Fat Boy114 (ANV), 115th Anniversary Fat Boy 114 (ANV), Softail Fat Boy114, Softail Fat Boy 114, FLSTFB Fat Boy Special, FLSTF Fat Boy, Fat Boy Special, Fat Boy
Production	2010 - 11
Engine	Four stroke, Twin Cam 96BTM Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
Compression ratio	9.2:1
Ignition	Single-fire, non-wasted, map-controlled spark ignition
Transmission	6 Speed
Frame	Mild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded
Suspension	Front: 41.3 mm telescopic, chrome dust covers Rear: Hidden, horizontal-mounted, coil-over shock
Brakes	Front: Single 292mm disc 4 piston caliper Rear: Single 292mm disc 4 piston caliper
Front Tire	140/75R17
Rear Tire	200/55R17
Wheelbase	1715 mm / 67.5 in
Seat Height	Laden 616 mm /24.3 in Unladen 669 mm / 26.4 in
Weight	317.5 kg / 700 lbs (dry), 331.70 kg / 731.25 lbs (wet)
Oil Capacity	3.3 Liters / 3.50 qts
Oil Filter	K&N KN-171
Fuel Capacity	18.9 Liters / 5.0 US gal
Manuals	Service Manual

Engine

The engine was a Air cooled cooled Four stroke, Twin Cam 96BTM Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder. The engine featured a 9.2:1 compression ratio.

Drive

Power was moderated via the Multi-plate, wet.

Chassis

It came with a 140/75R17 front tire and a 200/55R17 rear tire. Stopping was achieved via Single 292mm disc 4 piston caliper in the front and a Single 292mm disc 4 piston caliper in the rear. The front suspension was a 41.3 mm telescopic, chrome dust covers while the rear was equipped with a Hidden, horizontal-mounted, coil-over shock. The FLSTFB Softail Fat Boy Lo was fitted with a 18.9 Liters / 5.0 US gal fuel tank. The bike weighed just 317.5 kg / 700 lbs. The wheelbase was 1715 mm / 67.5 in long.

Photos

Overview

Harley Davidson FLSTFB Softail Fat Boy Lo

The popular Fat Boy gets new ergos, lowered suspension, and the blacked-out treatment in this new version. It starts with front and rear suspension that has been lowered by 1.15-inches. This dropped the seat height to 24.25 inches, the lowest of any stock Harley. To match its new low-riding seat height, the seat has a narrower cut as H-D looks to give the 2010 Fat Boy Lo more of an ‘in the bike’ feel.

Its dark side is represented by its gloss black finish on its triple clamp covers and nacelle, headlight bucket, air cleaner cover trim ring, rear fender supports, and floorboards. The frame, swingarm, front shock covers, oil tank, and air cleaner cover all have a denim black finish. Its Twin Cam 96B engine has black powdercoating, and the Bullet Hole Disc 17-inch cast aluminum wheels have black centers and machined outer rims.

Though not officially one of Harley’s Dark Customs that targets younger riders, the blacked-out treatment on the ’10 Fat Boy Lo follows in that vein. Its low seat height and narrower handlebar could be a direct appeal to women riders as well.

New Seat is lower and narrower for an easy reach to the ground New Leather tank panel with Harley-Davidson® medallion New Satin-chrome tank console and side badges New Bullet Hole Disc Cast Aluminum wheels with black centers and machined outer rims. New Denim Black frame, swingarm, front shock covers, derby cover, horn cover, coil cover, oil tank, and air cleaner cover New Gloss Black triple clamp covers and nacelle, headlight bucket, air cleaner cover trim ring, rear fender supports, footboards New Helical cut 5th gear for improved transmission sound • Black powder-coated powertrain with satin-chrome covers • Front and rear suspension lowered 1.15-inch • 200 mm rear tire • Over/under shotgun exhaust with satin-chrome mufflers and muffler shields, and flat-black header shields • Half-moon black rider floorboards • Stainless steel 1.25-inch, internally-wired handlebar • Rolled edge front fender • Full-coverage rear fender Darker and lower, the Fat Boy® Lo retains the bold presence of the Fat Boy® while offering a fresh interpretation of the motorcycle that still defines the segment. A re-shaped seat and lowered suspension combine to produce the lowest seat height of any Harley-Davidson® model, just 24.25 inches.

The Softail® rear suspension mimics the clean lines of a vintage hardtail frame but offers the comfort of a modern suspension that is hidden under the chassis. The rigid powertrain allows tight packaging of the engine and frame and creates a solid connection between the rider and the power that moves the motorcycle. • Rigid-mounted, counter-balanced Twin Cam 96B™ V-Twin engine with Electronic Sequential Port Fuel Injection (ESPFI) • 6-Speed Cruise Drive® Transmission • Horseshoe oil tank • Five-gallon fuel tank • Optional Harley-Davidson® Smart Security System with hands-free security fob

Make Model	Harley Davidson FLSTFB Softail Fat Boy Lo
Year	2010 - 11
Engine Type	Four stroke, Twin Cam 96BTM Valves Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
Displacement	1584 cc / 96 cu-in
Bore X Stroke	95.25 x 111.25 mm
Cooling System	Air cooled
Compression	9.2:1
Induction	Electronic Sequential Port Fuel Injection (ESPFI)
Ignition	Single-fire, non-wasted, map-controlled spark ignition
Starting	Electric
Max Torque	124.7 Nm / 92 ft. lbs @ 3000 rpm
Clutch	Multi-plate, wet
Transmission	6 Speed
Final Drive	Belt
Gear Ratio	1st 9.311 / 2nd 6.454 / 3rd 4.793 / 4th 3.882 / 5th 3.307 / 6th 2.790
Frame	Mild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded
Front Suspension	41.3 mm telescopic, chrome dust covers
Rear Suspension	Hidden, horizontal-mounted, coil-over shock
Front Brakes	Single 292mm disc 4 piston caliper
Rear Brakes	Single 292mm disc 4 piston caliper
Front Tire	140/75R17
Rear Tire	200/55R17
Rake	31.6°
Trail	147 mm / 5.7 in
Dimensions	Length 2445 mm / 96.2 in
Wheelbase	1715 mm / 67.5 in
Seat Height	Laden 616 mm /24.3 in Unladen 669 mm / 26.4 in
Gross Vehicle Weight Rating	526.0 kg / 1160 lbs
Dry Weight	317.5 kg / 700 lbs
Wet Weight	331.70 kg / 731.25 lbs
Oil Capacity	3.3 Liters / 3.50 qts
Fuel Capacity	18.9 Liters / 5.0 US gal