Ducati Diavel V4 vs Harley-Davidson Fat Boy

Last Updated: October 26, 2026

Harley-Davidson Fat Boy price starts at Rs. 28.03 Lakh, which is Rs. 1.63 Lakh cheaper than the base variant of Ducati Diavel V4, priced at Rs. 29.66 Lakh. In terms of mileage, the Diavel V4 offers a claimed 18.2 kmpl, while the Fat Boy delivers 18.18 kmpl. On the performance front, the Diavel V4 uses a 1158cc engine producing 170.33 PS @ 10750 rpm and the Fat Boy a 1923cc engine producing 104.69 PS @ 5020 rpm. If you're deciding between the Diavel V4 and Fat Boy, the Diavel V4 is the better pick for performance and a lighter kerb weight, while the Fat Boy stands out for affordability.

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Diavel V4 vs Fat Boy Comparison Summary

Specification Ducati Diavel V4Harley-Davidson Fat Boy
Ex-showroom price (base) Rs. 29.66 LakhRs. 28.03 Lakh
Mileage 18.2 kmpl18.18 kmpl
Engine 1158 cc1923 cc
Max power 170.33 PS @ 10750 rpm104.69 PS @ 5020 rpm
Kerb weight 236 Kg315 Kg

Diavel V4 vs Fat Boy Key Highlights

Basic Info Ducati Diavel V4 RedHarley-Davidson Fat Boy STD
Rating
2 reviews
2 reviews
Brand Name Ducati Harley-Davidson
Ex-Showroom Price Rs. 29.66 Lakh Check On Road Price Rs. 28.03 Lakh Check On Road Price
Engine Type V4 Granturismo, 4 valves per cylinder, counter-rotating crankshaft, Twin Pulse firing order, liquid cooled Milwaukee-Eight™ 117 Custom
Max Power 170.33 PS @ 10750 rpm 104.69 PS @ 5020 rpm
Fuel Type Petrol Petrol
Colors
Ducati Diavel V4 Colors
Harley Davidson Fat Boy Colors
Wheel Size Front :-431.8 mm,Rear :-406.4 mm Front :-457.2 mm,Rear :-457.2 mm
Wheels Type (Pressed Steel/ Alloy) Spoke Wheel Cast Aluminum
ABS Dual Channel Dual Channel
Starting Self Start Only Self Start Only
Speedometer Digital Analogue
EMI
Rs. 81,208 @ 6% (36 months)
Rs. 76,745 @ 6% (36 months)
Insurance Rs. 64,386 Diavel V4 Insurance Rs. 58,686 Fat Boy Insurance
Brochure N/A N/A

Valves (per cylinder)
4
4
Claimed Top Speed
299 kmph
177 kmph
Emission Norm Compliance
bs6.2
bs6.2
Engine Type
V4 Granturismo, 4 valves per cylinder, counter-rotating crankshaft, Twin Pulse firing order, liquid cooled
Milwaukee-Eight™ 117 Custom
Engine Displacement
1158 cc
1923 cc
Gear Box
6 Speed
6 Speed
Max Power
170.33 PS @ 10750 rpm
104.69 PS @ 5020 rpm
Max Torque
126 Nm @ 7500 rpm
168 Nm @ 3000 rpm
Bore
83 mm
103.5 mm
Stroke
53.5 mm
114.3 mm
Number Of Cylinders
4
2
Drive Type
Chain Drive
Chain Drive
Fuel System
Fuel Injection
Fuel Injection
Fuel Type
Petrol
Petrol
Compression Ratio
14.0:1
10.3:1

Front Brake
Disc
Disc
Rear Brake
Disc
Disc
Front Caliper
Not Available
4 Piston
Rear Caliper
Not Available
4 Piston

Mileage (Overall)
18.2 kmpl
18.18 kmpl
Fuel Gauge
Not Available
Digital

Suspension-Front
Ø 50 mm fully adjustable usd fork 120 mm
Dual-bending valve 49 mm telescopic with aluminum fork triple clamps; dual rate spring; "beer can" covers
Suspension-Rear
Fully adjustable monoshock, aluminium single-sided swingarm 145 mm
Hidden, free piston, coil-over monoshock; 43mm stroke; hydraulic preload adjustment

Tyre Size
Front :-120/70-R17 Rear :-240/45-R17
Front :-160/60-R18, Rear :-240/40-R18
Wheel Size
Front :-431.8 mm,Rear :-406.4 mm
Front :-457.2 mm,Rear :-457.2 mm
Tyre Make
Not Available
Michelin
Tyre Type
Tubeless
Tubeless
Radial Tyre
Not Available
Yes
Wheels Type (Pressed Steel/ Alloy)
Spoke Wheel
Cast Aluminum

Dry Weight
211 kg
304 kg
Seat height
790 mm
675 mm
Engine Oil Capacity
Not Available
4.7 L
Wheelbase
1593 mm
1650 mm
Length
Not Available
2365 mm
Ground Clearance
Not Available
125 mm
Width
Not Available
965 mm
Fuel Tank Capacity
20 L
18.9 L
Kerb Weight
236 Kg
315 Kg
Tail Light
LED
LED

USB charging port
Not Available
Yes
Music control
Yes
Not Available
Headlight
LED
LED
Power Modes
Yes
Not Available

Cruise Control
Yes
Yes
Frame Type
Aluminum monocoque frame
Stiffer Frame
Trip Meter
Digital
Digital
Navigation assist
Yes
Not Available
Riding Modes
Sports,Touring,Urban
Yes
Traction Control
Yes
Yes
Kill Switch
Not Available
Yes
Low battery alert
Not Available
Yes
Rear Footpegs
Yes
Yes
Daytime Running Lamps
Yes
Not Available
Additional Features/Information
Exhaust - Stainless steel exhaust muffler with 4 exit pipes, 2 catalytic converters and 4 lambda probes, Primary Drive - Straight cut gears; Ratio 1.80:1, Final Drive - Chain, front sprocket z16, rear sprocket z43, Rake - 26°, Trail - 112 mm, Cornering ABS, Ducati Wheelie Control, Ducati Quick Shift, Hands-Free, Ducati Multimedia System, Backlit Handlebar Switches, Dynamic Turn Indicators
Drag-Torque Slip Control System, Hand Controls, Tyre Pressure Monitoring System, Cornering Enhanced Anti-lock Brake System, Cornering Enhanced Traction Control System, Cornering Drag-Torque Slip Control System
Gear Position Indicator
Not Available
Yes
ABS Type
Dual Channel
Dual Channel
Side Stand Warning
Not Available
Yes
Launch Control
Yes
Not Available
ABS
Dual Channel
Dual Channel
Body Type
Super Bikes, Sports Naked Bikes, Sports Bikes
Cruiser Bikes
Instrument Console Type
Digital
Analogue and Digital
Bluetooth Connectivity
Bluetooth
Not Available
Starting
Self Start Only
Self Start Only
Seat Type
Split
Split
Pass Beam Switch
Not Available
Yes
Speedometer
Digital
Analogue
Tachometer
Digital
Digital
Low Fuel Warning Lamp
Not Available
Yes
Clock
Yes
Yes
Low Battery Indicator
Not Available
Yes
Low Oil Indicator
Not Available
Yes
Cooling System
Liquid Cooled
Air Cooled
Odometer
Digital
Digital
Navigation
Yes
Not Available
Switchable ABS
Not Available
Yes

Is Ducati Diavel V4 Better Than Harley-Davidson Fat Boy?

100% users have chosen Ducati Diavel V4 over Harley-Davidson Fat Boy in a survey being conducted on zigwheels.com.
Apart from this survey a total of 8 users have also rated Ducati Diavel V4 and Harley-Davidson Fat Boy on some really important factors like Mileage , performance, comfort, safety etc. and have given their personal opinions about these bikes.
On the basis of mileage, performance, comfort, maintenance and features user have rated both the bikes equally.
Before making your decision you should also consider the unbiased and thorough analysis of these bikes on every aspect by our auto experts who have summarised the analysis in pros, cons and final conclusion..

Ratings Factor Diavel V4 Fat Boy
Mileage 1.7 5.0
Performance 1.7 3.0
Comfort 5.0 5.0
Maintenance 1.7 5.0
Features 5.0 5.0
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Latest News on Ducati Diavel V4 and Harley Davidson Fat Boy

Ducati Diavel V4 Vs Harley-Davidson Fat Boy FAQs

Which bike is best between Ducati Diavel V4 vs Harley-Davidson Fat Boy?
On the basis of mileage, performance, comfort, maintenance and features user have rated both the bikes equally.
Which bike is cheaper Ducati Diavel V4 vs Harley-Davidson Fat Boy?
The Harley-Davidson Fat Boy is cheaper than Ducati Diavel V4 by ₹1.63 Lakh.
Which bike offers better performance Ducati Diavel V4 vs Harley-Davidson Fat Boy?
For the Red version, 1158 cc Petrol engine of Diavel V4 produces 170.33 PS @ 10750 rpm of power and 126 Nm @ 7500 rpm of torque. Whereas for the STD version, 1923 cc Petrol engine of Fat Boy produces 104.69 PS @ 5020 rpm of power and 168 Nm @ 3000 rpm of torque
As per the users experiences in terms of performance both are same.

Images of Harley-Davidson Fat Boy and Ducati Diavel V4

Which one do you like more?
Fat Boy
Fat Boy
Diavel V4
Diavel V4
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