2025 Harley-Davidson Fat Boy 117 vs 2018 Harley-Davidson Street Rod Dark Custom

The Harley-Davidson Fat Boy 117 records higher power, higher torque and larger displacement than the Harley-Davidson Street Rod Dark Custom. The Harley-Davidson Street Rod Dark Custom has the advantage in recorded weight where both recorded values are available.

Recorded specification differences

  • Model: Harley-Davidson Fat Boy 117 Harley-Davidson Fat Boy 117, Harley-Davidson Street Rod Dark Custom Harley-Davidson Street Rod Dark Custom
  • Year: Harley-Davidson Fat Boy 117 2025, Harley-Davidson Street Rod Dark Custom 2018
  • Displacement: Harley-Davidson Fat Boy 117 1917, Harley-Davidson Street Rod Dark Custom 749
  • Power: Harley-Davidson Fat Boy 117 104, Harley-Davidson Street Rod Dark Custom 70
  • Torque: Harley-Davidson Fat Boy 117 170.9, Harley-Davidson Street Rod Dark Custom 65
  • Weight: Harley-Davidson Fat Boy 117 314.8, Harley-Davidson Street Rod Dark Custom 238
  • Seat height: Harley-Davidson Fat Boy 117 65.8, Harley-Davidson Street Rod Dark Custom 77
Harley-Davidson Fat Boy 117 vs Harley-Davidson Street Rod Dark Custom key specifications
SpecHarley-Davidson Fat Boy 117Harley-Davidson Street Rod Dark Custom
Year20252018
CategoryCruiserCruiser
Displacement1917749
Power10470
Torque170.965
Weight314.8238

Power

The Harley-Davidson Fat Boy 117 records 104 hp, 34 hp (48.6%) more than the Harley-Davidson Street Rod Dark Custom at 70 hp.

Torque

The Harley-Davidson Fat Boy 117 records 170.9 Nm of torque, 105.9 Nm (162.9%) more than the Harley-Davidson Street Rod Dark Custom at 65 Nm.

Weight

The Harley-Davidson Street Rod Dark Custom records a lower wet weight of 238 kg, 76.8 kg less than the Harley-Davidson Fat Boy 117 at 314.8 kg.

Displacement

The Harley-Davidson Fat Boy 117 records 1917 cc, 1168 cc (155.9%) more than the Harley-Davidson Street Rod Dark Custom at 749 cc.

Seat height

The Harley-Davidson Street Rod Dark Custom has a higher recorded seat height (77) than the Harley-Davidson Fat Boy 117 (65.8), a difference of 11.2.

Power-to-weight

The Harley-Davidson Fat Boy 117 has the higher power-to-weight figure at 0.330 hp/kg, compared with 0.294 hp/kg for the Harley-Davidson Street Rod Dark Custom.

Frequently asked questions

Which motorcycle records more power, the Harley-Davidson Fat Boy 117 or the Harley-Davidson Street Rod Dark Custom?

The Harley-Davidson Fat Boy 117 records 104 hp, 34 hp (48.6%) more than the Harley-Davidson Street Rod Dark Custom at 70 hp.

Which motorcycle records more torque, the Harley-Davidson Fat Boy 117 or the Harley-Davidson Street Rod Dark Custom?

The Harley-Davidson Fat Boy 117 records 170.9 Nm of torque, 105.9 Nm (162.9%) more than the Harley-Davidson Street Rod Dark Custom at 65 Nm.

Which motorcycle records the lower weight, the Harley-Davidson Fat Boy 117 or the Harley-Davidson Street Rod Dark Custom?

The Harley-Davidson Street Rod Dark Custom records a lower wet weight of 238 kg, 76.8 kg less than the Harley-Davidson Fat Boy 117 at 314.8 kg.

Which motorcycle records larger displacement, the Harley-Davidson Fat Boy 117 or the Harley-Davidson Street Rod Dark Custom?

The Harley-Davidson Fat Boy 117 records 1917 cc, 1168 cc (155.9%) more than the Harley-Davidson Street Rod Dark Custom at 749 cc.

How do the recorded seat heights of the Harley-Davidson Fat Boy 117 and the Harley-Davidson Street Rod Dark Custom compare?

The Harley-Davidson Street Rod Dark Custom has a higher recorded seat height (77) than the Harley-Davidson Fat Boy 117 (65.8), a difference of 11.2.

Which motorcycle has the higher power-to-weight figure, the Harley-Davidson Fat Boy 117 or the Harley-Davidson Street Rod Dark Custom?

The Harley-Davidson Fat Boy 117 has the higher power-to-weight figure at 0.330 hp/kg, compared with 0.294 hp/kg for the Harley-Davidson Street Rod Dark Custom.

VS
HA

Harley-Davidson Fat Boy 117

2025Cruiser

Displacement1917 cc
Power104 hp
HA

Harley-Davidson Street Rod Dark Custom

2018Cruiser

Displacement749 cc
Power70 hp

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Better
Worse

Harley-Davidson Fat Boy 117

2025 • Cruiser

Harley-Davidson Street Rod Dark Custom

2018 • Cruiser

Engine & Performance

Engine Displacement
1917 cc
749 cc
Power
104 hp
70 hp
Torque
170.9 Nm
65 Nm
Engine Type
-
V-Twin
Engine Details
DOHC
V-Twin | SOHC | Cylinder: 2
Power / Weight
0.3417 hp/kg
0.306 hp/kg
Valves / Cylinder
-
4
Compression Ratio
10.3:1
12.0:1

Fuel & Capacity

Fuel System
Injection
Injection
Cooling System
Air-cooled
Liquid-cooled
Starter
Electric
Electric

Transmission & Drive

Gearbox
Manual 6-speed
Manual 6-speed
Transmission
Belt
Belt

Chassis & Suspension

Front Suspension
Telescopic
Telescopic
Rear Suspension
Monoshock
Twin-Shock

Brake System

Front Brakes
Disc x2 ABS
Disc ABS
Rear Brakes
Disc ABS
Disc ABS

Tires & Wheels

Front Tyre
160/60-R18
120/70-R17
Rear Tyre
240/40-R18
160/60-R17

Dimensions & Weight

Length
236.5 cm
213 cm
Seat Height
65.8 cm
77 cm
Wheelbase
165.1 cm
151 cm
Ground Clearance
11.4 cm
21 cm
Dry Weight
304.4 kg
229 kg
Wet Weight
314.8 kg
238 kg

Disclaimer: The technical specifications, performance values, ride profile analyses, match scores, and other data presented on this page are compiled for informational purposes and processed through algorithmic calculations. Their source, license, and commercial-use rights are not fully documented. This information does not constitute a definitive, official, or binding reference. Actual values may vary depending on the model year, market, equipment options, riding conditions, and individual use. Before making a purchase decision, we strongly recommend consulting an authorized dealer or the manufacturer for verified and up-to-date specifications. RPMVault assumes no liability for any decisions made based on the information provided on this page.