Comparing the Harley Davidson Fat Boy and the YAMAHA Aerox 155 Version S side by side helps you weigh how each motorcycle fits your riding needs before you decide. In terms of pricing, the Harley Davidson Fat Boy is available at ₹2,590,000, while the YAMAHA Aerox 155 Version S is priced at ₹153,433. On the engine front, the Harley Davidson Fat Boy comes with a 1,923 cc unit compared to the YAMAHA Aerox 155 Version S's 155 CC, producing 103 HP / 77 kW @ 5020 rpm and 11.0kW(15.0PS)/8000r/min respectively. Fuel efficiency stands at 18.18 Kmpl for the Harley Davidson Fat Boy versus 45 Kmpl for the YAMAHA Aerox 155 Version S. The full specification, pricing and feature breakdown for both motorcycles is available in the table below.
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | Air-cooled | Liquid-cooled |
| Displacement | 1,923 cc | 155 CC |
| Engine Type | Milwaukee-Eight™ 117 Custom | Liquid cooled, 4-stroke, SOHC, 4-valve |
| Power | 103 HP / 77 kW @ 5020 rpm | 11.0kW(15.0PS)/8000r/min |
| Torque | 168 Nm @ 3000 rpm | 13.9N.m(1.4kgf.m)/6500r/min |
Performance & Efficiency |
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| Fuel Tank Capacity | 18.9 litres | 5.5 L |
| Mileage | 18.18 Kmpl | 45 Kmpl |
Dimensions & Weight |
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| Kerb Weight | 315 | 126 |
| Seat Height | 675 | 790 |
Brakes & Suspension |
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| ABS | Dual-channel ABS | Single Channel ABS |
| Front Brake | Disc | Disc Brake(230mm) with ABS |
| Front Suspension | Dual-bending valve 49 mm telescopic with aluminum fork triple clamps, dual rate spring | Telescopic fork |
| Rear Brake | Disc | Drum(130mm) |
| Rear Suspension | Hidden, free piston, coil-over monoshock; 43mm stroke, hydraulic preload adjustment | Unit swing |
Tyres & Wheels |
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| Front Tyre | 160/60 R18 | 110/80-14M/C 53P |
| Rear Tyre | 240/40 R18 | 140/70-14M/C 62P |
| Tyre Type | Tubeless | Tubeless |
| Wheel Type | Cast aluminum (Lakester) | Alloy |
Features & Technology |
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| Headlight | LED | LED (Class D) |
Other Specifications |
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| Battery | — | 12 V, 6.0 Ah |
| Bike Image 1 |
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| Bike Image 2 |
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| Bike Image 3 |
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| Cluster | Analog with LCD | Digital |
| Color Options | Billiard GrayVivid BlackBlue BurstWhiskey Fire / Vivid Black | Racing BlueIce Fluo Vermillion |
| Fuel System | Fuel Injection | Fuel Injection |
| Price Variants | STD | 2803000 | | 146120 |
| Starter | Electric | Electric starter |
| Transmission | 6-speed manual | Automatic |








