Ducati Diavel V4 vs Harley-Davidson Fat Boy
Prices ex-showroom Delhi, checked 2026-09. On-road and running costs estimated for Delhi.
Ducati Diavel V4 and Harley-Davidson Fat Boy are both cruisers and turn up together on most shortlists. They are priced within ₹1,62,962 of each other, so this comes down to what each does with the money.
The Diavel V4 takes 3 of the 6 categories we score, so this is close and comes down to what you weight. Our overall ratings are 7/10 for the Diavel V4 and 6/10 for the Fat Boy.
Category by category
Price
Fat Boy
The Fat Boy starts ₹1,62,962 lower (₹28,03,000 against ₹29,65,962), about ₹5,170 a month less on a standard loan.
Running cost
Fat Boy
Fat Boy claims 18 kmpl against 15.6 kmpl. That is roughly ₹7,584 a year in fuel at 30 km a day.
Performance
Diavel V4
Diavel V4 has the better power-to-weight ratio: 705 against 296 bhp per tonne. It will feel quicker with a pillion and on overtakes.
Safety kit
Tie
Braking and safety equipment are matched.
Features
Diavel V4
Diavel V4 gets usd front forks, slipper clutch, projector headlamp and colour tft console and 2 more items.
City manners
Diavel V4
Diavel V4 is 81 kg lighter and taller in the seat (790 mm), which you feel in traffic and when parking.
Which one should you buy?
Buy the Diavel V4 if
- you ride two-up or on highways and want the stronger engine
- you are a new rider or shorter and want the lighter bike
- your priority is relaxed highway cruising
- your priority is long rides
Buy the Fat Boy if
- you want the lower purchase price and EMI
- mileage matters more to you than outright performance
- you live where Harley-Davidson's bigger service network matters
- your priority is relaxed highway cruising
What each really costs
Base variants, Delhi, 30 km a day. Servicing and insurance are class-typical estimates.
| Cost | Diavel V4 | Fat Boy |
|---|---|---|
| Ex-showroom | ₹29,65,962 | ₹28,03,000 |
| On-road, Delhi | ₹33,23,282 | ₹31,42,178 |
| Fuel, 5 years | ₹2,84,400 | ₹2,46,480 |
| Servicing, 5 years | ₹35,000 | ₹35,000 |
| Insurance renewals | ₹1,59,516 | ₹1,50,824 |
| Five-year total | ₹38,02,198 | ₹35,74,482 |
Full specification comparison
Better figure in each row is shown in green.
| Spec | DucatiDiavel V4 | Harley-DavidsonFat Boy |
|---|---|---|
| Price | ||
| Starting ex-showroom | ₹29,65,962 | ₹28,03,000 |
| Rough EMI / month | ₹94,060 | ₹88,890 |
| Engine | ||
| Engine | 1158 cc | 1868 cc |
| Engine type | 4 Cylinder, Liquid Cooled, 4 Valves | 2 Cylinder, Liquid Cooled, 4 Valves |
| Power | 166.3 bhp | 93.9 bhp |
| Torque | 126 Nm | 155 Nm |
| Claimed mileage | 15.6 kmpl | 18 kmpl |
| Cooling | Liquid-cooled | Liquid-cooled |
| Transmission | 6 Speed | 6 Speed |
| Electric | ||
| Top speed | 299 km/h | 177 km/h |
| Dimensions | ||
| Kerb weight | 236 kg | 317 kg |
| Fuel tank | 20 L | 18.9 L |
| Seat height | 790 mm | 675 mm |
| Ground clearance | — | 115 mm |
| Wheelbase | 1593 mm | 1665 mm |
| Length | — | 2370 mm |
| Width | — | 985 mm |
| Height | — | 1095 mm |
| Brakes & suspension | ||
| Front brake | Disc, 330 mm, 4 piston caliper | Disc, 300 mm, 4 piston caliper |
| Rear brake | Disc, 265 mm, 2 piston caliper | Disc, 292 mm, 2 piston caliper |
| ABS / CBS | Dual Channel ABS | Dual Channel ABS |
| Front suspension | Ø 50 mm fully adjustable usd fork | Dual-bending valve 49 mm telescopic with aluminum fork triple clamps |
| Rear suspension | Fully adjustable monoshock, aluminium single-sided swingarm | Hidden, free piston, coil-over monoshock; 43mm stroke |
| Tyres | ||
| Front tyre | 120/70-ZR17 | 160/60-R18 |
| Rear tyre | 240/45-ZR17 | 240/40-R18 |
Diavel V4 vs Fat Boy: questions people ask
- Which is cheaper, the Diavel V4 or the Fat Boy?
- The Fat Boy is cheaper by ₹1,62,962 at the base variant (₹28,03,000 against ₹29,65,962 ex-showroom Delhi).
- Which gives better mileage, the Diavel V4 or the Fat Boy?
- The Fat Boy claims 18 kmpl against 15.6 kmpl. Real-world figures for both will be lower.
- What is the on-road price difference between the Diavel V4 and Fat Boy in Delhi?
- About ₹1,81,104: roughly ₹33,23,282 for the Diavel V4 and ₹31,42,178 for the Fat Boy, base variants, including road tax, registration and insurance.
- Which costs less to own over five years?
- Our estimate for five years at 30 km a day in Delhi is ₹38,02,198 for the Diavel V4 and ₹35,74,482 for the Fat Boy, including purchase, fuel, servicing and insurance renewals. The Fat Boy comes out ₹2,27,716 ahead.
