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2018 Harley-Davidson Fat Boy® 107
2018 Harley-Davidson Fat Boy® 107

Specs

General Information

Manufacturer
Harley-Davidson
Harley-Davidson
Model Year
2018
2018
Model
Fat Boy® 107
Fat Boy® 107
Model Code
FLFB
FLFB
Color
Vivid Black
Vivid Black

Brakes/Wheels/Tires

Brakes

Front - 4-piston fixed

Rear - 2-piston floating

Front - 4-piston fixed

Rear - 2-piston floating

Wheels
Front and rear - Machined, Lakester cast aluminum
Front and rear - Machined, Lakester cast aluminum
Tires

Front - 160/60R18,70V,BW

Rear - 240/40R18,79V,BW

Front - 160/60R18,70V,BW

Rear - 240/40R18,79V,BW

Dimensions

Length
93.3 in.
93.3 in.
Weight

As shipped - 670 lb.

In Running Order - 699 lb.

As shipped - 670 lb.

In Running Order - 699 lb.

Ground Clearance
4.5 in.
4.5 in.
Wheelbase
65.6 in.
65.6 in.
Seat Height

Laden - 25.9 in.

Unladen - 26.6 in.

Laden - 25.9 in.

Unladen - 26.6 in.

Electrical

Lighting
High beam, turn signals, neutral, low oil pressure, engine diagnostics, ABS, security, low battery voltage, low fuel
High beam, turn signals, neutral, low oil pressure, engine diagnostics, ABS, security, low battery voltage, low fuel

Engine

Engine
Milwaukee-Eight® 107
Milwaukee-Eight® 107
Displacement
1,746 cc (107 cu. in.)
1,746 cc (107 cu. in.)
Bore x Stroke
3.937 x 4.374 in.
3.937 x 4.374 in.
Torque
109 ft. / lb. @ 3,000 rpm
109 ft. / lb. @ 3,000 rpm
Gear Ratio

Overall

1st - 9.311

2nd - 6.454

3rd - 4.793

4th - 3.882

5th - 3.307

6th - 2.79

Overall

1st - 9.311

2nd - 6.454

3rd - 4.793

4th - 3.882

5th - 3.307

6th - 2.79

Fuel System
Electronic Sequential Port Fuel Injection (ESPFI)
Electronic Sequential Port Fuel Injection (ESPFI)
Exhaust
2-into-2 staggered; catalyst in header
2-into-2 staggered; catalyst in header
Fuel Capacity
5 gal.
5 gal.
MPG Rating
Estimated City / Hwy - 47 mpg
Estimated City / Hwy - 47 mpg

Operational

Rake
30°
30°
Trail
4.1 in.
4.1 in.

Other

Additional Colors

Black Tempest

Bonneville Salt Pearl

Industrial Gray

Vivid Black

Wicked Red / Twisted Cherry

Black Tempest

Bonneville Salt Pearl

Industrial Gray

Vivid Black

Wicked Red / Twisted Cherry

Features

Styling + Features

  • RIPPED, REFINED, AND READY FOR ITS CLOSE-UP: It’s got solid-disc wheels, a 240 mm rear tire, and jaw-dropping satin chrome finishes.
  • 31 POUNDS LIGHTER. MASSIVE ENGINE POWER: You’ll feel the difference the first time you lift it up off its side stand, throw a leg over and hit the throttle. The ride will thrill you.
  • SATIN CHROME FINISHES: An all-you-can-eat portion of sculpted satin chrome gives the Fat Boy® a look that’ll make a big impact.
  • STEAMROLLER STANCE: A muscular look thanks to all-new solid-disc Lakester wheels wrapped in the widest front tire we’ve ever offered from the factory at 160 mm combined with a 240 mm rear tire.
  • MILWAUKEE-EIGHT® BIG TWIN ENGINE: A powerful, smooth-running engine with crisp throttle response and a pure, soul-satisfying rumble. Available in 107 and 114 engine displacements.
  • SIGNATURE LED FORWARD LIGHTING: Darkness-defying lighting that gives you greater visibility at night.
  • SOFTAIL® FRAME: A lighter, stiffer frame (compared to the prior Softail® and Dyna® models) that takes the idea of form and function to a place it’s never been before. It’s the look of a hard tail from a bygone era that delivers a thoroughly modern ride.
  • HIGH PERFORMANCE FRONT SUSPENSION: Showa® SDBV® suspension technology provides the performance of a racing-style cartridge fork for reduced weight with linear damping characteristics.
  • HIGH PERFORMANCE REAR MONO SHOCK: Easily adjustable mono-shock rear suspension allows for dynamic cornering capability while preserving the hardtail look.

Styling + Features

  • RIPPED, REFINED, AND READY FOR ITS CLOSE-UP: It’s got solid-disc wheels, a 240 mm rear tire, and jaw-dropping satin chrome finishes.
  • 31 POUNDS LIGHTER. MASSIVE ENGINE POWER: You’ll feel the difference the first time you lift it up off its side stand, throw a leg over and hit the throttle. The ride will thrill you.
  • SATIN CHROME FINISHES: An all-you-can-eat portion of sculpted satin chrome gives the Fat Boy® a look that’ll make a big impact.
  • STEAMROLLER STANCE: A muscular look thanks to all-new solid-disc Lakester wheels wrapped in the widest front tire we’ve ever offered from the factory at 160 mm combined with a 240 mm rear tire.
  • MILWAUKEE-EIGHT® BIG TWIN ENGINE: A powerful, smooth-running engine with crisp throttle response and a pure, soul-satisfying rumble. Available in 107 and 114 engine displacements.
  • SIGNATURE LED FORWARD LIGHTING: Darkness-defying lighting that gives you greater visibility at night.
  • SOFTAIL® FRAME: A lighter, stiffer frame (compared to the prior Softail® and Dyna® models) that takes the idea of form and function to a place it’s never been before. It’s the look of a hard tail from a bygone era that delivers a thoroughly modern ride.
  • HIGH PERFORMANCE FRONT SUSPENSION: Showa® SDBV® suspension technology provides the performance of a racing-style cartridge fork for reduced weight with linear damping characteristics.
  • HIGH PERFORMANCE REAR MONO SHOCK: Easily adjustable mono-shock rear suspension allows for dynamic cornering capability while preserving the hardtail look.