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Harley Davidson Softail Fat Boy

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Make Model

Harley Davidson Softail Fat Boy

Year

2017

Engine

Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler

Capacity

1690 cc / 103.1 cub in.
Bore x Stroke 98.4 x 111.1 mm
Cooling System Air cooled
Compression Ratio 9.6:1
Exhaust Chrome, over/under shotgun exhaust with dual mufflers

Induction

Electronic Sequential Port Fuel Injection (ESPFI)

Ignition

Single-fire, non-wasted, map-controlled spark ignition

Starting

Electric

Max Torque

132 Nm / 13.4 kgf-m / 98.2 ft. lbs @ 3250 rpm

Transmission 

6 Speed 
Primary Drive Chain, 34/46 ratio
Final Drive Belt
Gear Ratio 1st 9.311 / 2nd 6.454 / 3rd 4.793 / 4th 3.882 / 5th 3.307 / 6th 2.79
Frame Mild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded

Lean Angle, Left

27º

Lean Angle, Right

26.2º

Front Suspension

41.3 mm telescopic, chrome dust covers

Rear Suspension

Hidden, horizontal-mounted, coil-over shock

Front Brakes

2x Discs 4 piston caliper

Rear Brakes

Single disc 2 piston caliper
Wheels Optional Style Type Mirror Polished Chrome, Bullet Hole Disc Cast Aluminum (front and rear)
Front Wheel Mirror chrome aluminum, bullet hole disc
Rear Wheel Mirror chrome aluminum, bullet hole disc

Front Tyre

140/75R17 67V

Rear Tyre

200/55R17 78V
Rake (steering head) 31°
Trail 147 mm / 5.8 in
Dimensions Length 2390 mm / 94.1 in
Wheelbase 1630 mm / 64.2 in
Seat Height Laden     635 mm / 25.0 in
Unladen  690 mm / 27.1 in
Ground Clearance 120 mm / 4.7 in
Gross Vehicle Weight Rating 526.0 kg / 1160 lbs

Dry Weight

319 kg / 704 lbs
Wet Weight 332 kg / 733 lbs

Fuel Capacity 

18.9 Litres / US 5.0 gal

Output Twin Cam 103B™ engine, to the curve of its distinctive rear fender, this machine is built to make an impact. Ride one and you’ll understand.

The original fat custom and the very definition of a heavyweight bike, the Fat Boy® model is big, beefy, and rolls with a stature that’s second to none. This original turns heads wherever it rolls with its fat forks, fat tire, a fat fender, and fat bars. The legendary bike keeps the hardtail chopper spirit alive and stronger than ever.

SOFTAIL®

A rigid mounted engine and twin hidden rear shocks give Softail models the clean look of a vintage hardtail, while cutting-edge technology delivers the smooth ride and comfort expected from a modern Harley-Davidson motorcycle. The counter-balanced High Output Twin Cam 103B engine delivers pounding torque, and the 6-Speed Cruise Drive® transmission provides smooth delivery of power.

Family features:

High Output Twin Cam 103 counter balanced engine
6-speed Cruise Drive transmission
ABS available on all models

Battery tender harness

Paint color options

MODEL UNIQUE FEATURES
Style

• Mirror Chrome Aluminum Bullet Hole Disc wheels, 17-inch front and rear
• Custom trimmed front fender
• Chrome front fork nacelle
• Chrome nostalgic 7-inch ball headlamp
• Giant, bare-knuckle chrome riser
• Fat Bob® fuel tank with nostalgic chrome console
• Chrome bullet-studded seat valance and tank strap
• Black powder-coated engine with chrome treatment covers
• Air cleaner cover with High Output 103 badging
• Chrome over/under shotgun exhaust with dual mufflers
• Chrome horseshoe oil tank with chrome external oil lines
• Hardtail styling with hidden horizontal rear shocks
• Beefy, 200 mm wide rear tire

Fit
• Low, narrow-cut seat
• Two-piece, two-up Softail® classic removable seat pillion
• Low-profile, ergonomic 1.25-inch internally-wired handlebar
• Full-length rider footboards with heel/toe shift levers
• Standard passenger footpegs

Function
• Electronic throttle control
• Tank-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
• Self-canceling turn signal controls
• Start, engine cutoff, left/right turn signals, horn, hi/low beam, odometer trip switch and hazard warning hand controls
• Barrel key, tank console-mounted ignition; fork lock common with ignition key
• Electric power accessory connector under seat

Performance
• Rigid-mounted, Air-cooled, 1690 cc High Output Twin Cam 103B™ counter-balanced engine with Automatic Compression Release (ACR)
• 6-Speed Cruise Drive® transmission
• Electronic Sequential Port Fuel Injection (ESPFI) with heated O2 sensors
• Anti-lock Braking System (ABS)1, standard

AVAILABLE OPTIONS
• Electronic cruise control (factory installed option)
• Smart Security System2 with proximity-based, hands-free security fob (factory installed option)
• Engine Idle Temperature Management Strategy (EITMS) (dealer-activated)

Authentic Styling

Get an eyeful of a Softail® motorcycle and you see more than some weepy-eyed exercise in nostalgia. You’re looking at the kind of style that has the power to defy time. Honest. Uncluttered. Unaffected by the fad of the moment. There’s a good reason for this. We’ve used our long decades on the road, riding, wrenching, talking to other custom bike fanatics, to discover what works. Then we stick with it, and use it to push the boundaries of motorcycle design ever further. Take a look at the horseshoe oil tank adorning our Softail models. It’s the same one you’d see on a restored dresser from the ‘50s, or a radical Panhead chopper from the ‘70s. And you’ll find it right now on future Harley-Davidson® models that still on the drawing board. Other companies may be content to imitate bits and pieces from our long history. On a Softail motorcycle every part down to the axle nut cover comes from an authentic tradition. With a genuine reason for looking the way it looks.

Iconic Engine

The air-cooled 45° V-Twin engine at the heart of every Softail model is a prime example of what makes a Harley-Davidson motorcycle more satisfying than anything else. Its clean, uncluttered shape fits perfectly in the downtubes of the frame. Twist the throttle and the surge of torque hits you exactly where it counts. The knowledge of what makes an engine truly move a rider runs deep at The Motor Company, and it’s been put to particular good use to power the Softail family. We counterbalance the engine, which means we can bolt it directly to the frame. It keeps the styling tight at the center of the bike. It lets the rider feel the pulse of the V-Twin. With the High Output Twin Cam 103B™ engine, there aren’t any vibrations rattling the fillings out of your teeth. More power is always a Harley-Davidson tradition.

Handling

If you’ve never experienced a Harley-Davidson® Softail® motorcycle, it’s time to find out what you’ve been missing. The venerable Softail frame has logged untold millions of miles, and we’ve put every one of them to good use. The result: one of the most fun rides in all of motorcycling. We’ve spent the years making the frame stiffer, the geometry more balanced and the braking more precise. The dazzling wheels are wrapped in premium Dunlop rubber. The low seats give you a confident feeling of being a part of the motorcycle. Get out on a rolling stretch of backcountry highway and it all comes together. The crisp and responsive ride. The killer looks. As long as we build motorcycles like this having a good time will never go out of style.

Comfort

The authentic look of a Softail motorcycle comes from the days before anyone knew much about building a suspension. The rigid hardtail frames of yesteryear had a pure, uncluttered look that riders still love. But the bone-rattling ride meant your grandpa needed to strap on a kidney belt to keep his internals intact. The Softail family uses modern technology to consign the kidney belt to the museum. We've kept all the modern comforts where they belong—below the surface of a rad bike loaded with authentic style. You get the classic lines of a vintage "hardtail" frame with the horizontal rear shocks hidden in the guts. It's a signature rigid look, and you'll only find it on a Softail model.

STYLING

Fat Custom Style

Recalling the "hardtail" choppers of the '60s and '70s, the Fat Boy® motorcycle keeps that heritage alive more than forty years later. This is the original "fat custom" bike - ??laid-back and luxurious with an unmistakable profile on the road. But the nostalgic style isn't just about the confident stance, chrome and old-school detail. It's how you look riding it. It's how it feels. It's the classic, relaxed riding position. You're not just cruising. You're in charge - ??kicked back on a throne of machined metal surveying your domain.

Fat Features

Big in all the right places. The 17-inch wheels of silver, bullet-hole, disc-cast aluminum definitely make an impression—especially with rubber 140mm wide in front and a beefy 200mm in back. And check out the chopsticks up front—fat front fork behind the huge, gorgeous headlamp. The handlebars are wide, giant stainless steel with bare-knuckle chrome risers. Plus, the fuel tank medallion boasts a generous slab of mirror chrome finish—noticeable on any stretch of road. It's a lot of fat in one tight bike. Definitely meaty. Wide. Big-boned. A bruiser. Call it what you want. Just admit that you want it.

Fat Custom Tank Details

This tank makes a statement with its leather tank strap, chrome side badges, and chrome speedometer and ignition switch console. The Fat Boy® model speedometer face boasts a big, bold display for the odometer and an ancillary display for gear and rpm, so all the info you need on the fly is yours at a glance.

Mirror Chrome Wheels

These Mirror Chrome Bullet Hole Disc wheels speak for themselves. So this is the iconic look for the Fat Boy® model. You can roll with gleaming eye-appeal that'??s thick with legendary Fat attitude, right off the lot.

Hidden Rear Shocks

If you want a comfortable bike but love that rigid-suspension look, you've come to the right bike. We've kept all the modern comforts where they belong: ??below the surface of a rad, vintage-looking bike. You get the classic lines of a vintage "hardtail" frame with the horizontal rear shocks hidden in the guts. It's a signature rigid look, and you'll only find it on a Softail® model.

 ENGINE

Air Cooled, High Output Twin Cam 103B™

The knowledge of what makes an engine truly move a rider runs deep at The Motor Company, and it was put to good use when we created the High Output Twin Cam 103B™ engine. We sweated bullets perfecting every cubic inch, pushing design and technology forward. And we did it all without compromising one bit of Harley-Davidson's unique styling. Evolved, yet carrying on the legacy of the Flathead, Knucklehead, Panhead, Shovelhead, Evolution® and High Output Twin Cam 88® and High Output Twin Cam 96® engines that came before. The performance and durability are a direct result of the untold miles logged on the V-Twin since 1909 and the proud heritage that comes from a century's worth of commitment to life on two wheels.

Pure Harley-Davidson Styling

Feast your eyes on the High Output Twin Cam 103B™ engine and there's no mistaking its roots. This is authentic Harley-Davidson style through and through with an attention to detail you won't find from any other motorcycle company. Black powder-coated heads and cylinders are highlighted by machined cooling fin tips and chrome rocker covers. It's a jewel machined out of metal. Pure. Dripping with power. From the classic edge of the cooling fins to the clean lines of cases and covers, ??the High Output Twin Cam 103B™ engine makes an ironclad statement about holding on to what's right and staying true to what satisfies.

High Output Twin Cam 103B™ Engine Power

Asking riders if they'??d like more power is like asking them "??Would you like more beer in the pitcher?"?¯ when they've reached the end of a long day tearing up the roads. Everybody wants it, and the High Output Twin Cam 103B™ engine is 103 cubic inches of Harley-Davidson V-Twin you can rely on to deliver it. The airbox increases intake airflow and the cam optimizes phase and duration. The result: better low-end torque and faster 60 to 80 mph 5th gear roll-on to get you around that 18-wheeler. In other words, it gets you motivated in a hurry. In the tradition of the legendary Harley iron that came before it, the High Output Twin Cam 103B™ engine is once again raising the bar for the feeling an engine delivers to the rider. There'??s a reason we're called the Harley-Davidson Motor Company. Once you send some fuel to this engine, you'??ll have no doubt whose it is.

High Output Twin Cam 103B™ Engine Innovation

Fire up the High Output Twin Cam 103B™ engine and feel the low-end torque unleashed. Thanks to the lightweight piston design, delivery of the added power is more refined than ever. Then put your foot on the shifter and feel how the engine and 6-Speed Cruise Drive® Transmission were designed to work together. Six speeds. A strong driveline and strong internal parts. Low routine maintenance. And a low cruising rpm that couldn't feel better.

6-Speed Cruise Drive® Transmission

You want a ride that rumbles—not begs for mercy—when you lean on it a little. The 6-Speed Cruise Drive® Transmission provides smooth, quiet shifting and reduces engine speed on the highway, so you get a better match between engine turnover and road speed. It's a rare ride when a bike responds like this, and a low growl goes a long way when you're opening up the road ahead.

 HANDLING

Fat Dunlop® Tires

Fatter is better. Rubber 140mm wide up front mitigates feedback from the street for a smoother ride. And the beefy 200mm rear tire provides a confident feeling of sure contact with the road and excellent traction under braking. And since they're from Dunlop®, you know you're wrapping your premium rollers in quality rubber.

Front Brake System

The front brake system on the Softail® models delivers a 40 percent reduction in the amount of lever force required at peak braking. The handlebar master and front cylinders have been restyled. There's a 4-piston fixed caliper with 32 and 34 mm pistons, premium caliper piston coating to minimize initial displacement and a larger 300 mm rotor. It all adds up to more stopping power with less effort.

Electronic Throttle Control

The pure heavyweight style of the Fat Boy® motorcycle gets even cleaner with the addition of electronic throttle control. Take a look. There's no cable cluttering up the handlebars. Plus, the electronic set-up makes it a simple no-fuss-no-muss procedure to install Harley-Davidson® cruise control.

 COMFORT

Low Profile Chrome Handlebars

These beefy 1-1/4-inch bars not only add to the overall Fat styling, with internally-routed wiring for a bold clean look, their ergonomic design and reduced-reach positioning provide comfort and confidence as you guide your ride whether you're heading across town or onward to the horizon.

Narrow Seat

To go along with the low seat height, we've added some ergos to make sure every inch of low pays off in pleasurable riding. We've slimmed up the seat itself. With the seat shape, lowdown frame and rigid powertrain, you can be sure you'll feel a solid, comfortable connection with the bike and road.

Convertible Two-Piece Seat

Cruise the boulevard in style with the classic Softail® two-piece seat. It's comfort for you or two. The classic, old-school styling includes a chrome bullet-studded seat valance, and the seat pillion is removable. Just ditch it for stripped-back, solo profiling. Or leave it on and bring your better half along for the ride.

Full-Length Rider Footboards

Your boots were made for riding, in any way you see fit. Our full-length footboards boast a tried and true design that's stood the test of time. Plenty of foot positions for your taste and comfort. Rubber vibration isolation for a comfortable ride. And heel-toe shifting for confident shifting every time. It takes a few rides, but once you've gotten used to the smooth heel-toe rhythm, you'll never give it up. The toes of your boots won't take the same beating, either.