Quick Analysis
Harley Davidson Fat Boy
13.5 pts
Unweighted: 9 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
TRIUMPH SPEED 400 MY25
20.0 pts
Unweighted: 12 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | Air-cooled | Liquid-cooled |
| Displacement | 1,923 cc | 349.0 cc |
| Engine Type | Milwaukee-Eight™ 117 Custom | 4 valve, DOHC, single-cylinder |
| Power | 103 HP / 77 kW @ 5020 rpm | 37 PS / 27.21 kW @ 8500 rpm |
| Torque | 168 Nm @ 3000 rpm | 32 Nm @ 7000 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 18.9 litres | 13 L |
| Mileage | 18.18 Kmpl | 29 L |
Dimensions & Weight |
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| Kerb Weight | 315 | 179 |
| Seat Height | 675 | 803 |
Brakes & Suspension |
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| ABS | Dual-channel ABS | Dual Channel ABS |
| Front Brake | Disc | Single 300mm fixed disc, ByBreTM four-piston radial caliper, ABS |
| Front Suspension | Dual-bending valve 49 mm telescopic with aluminum fork triple clamps, dual rate spring | 43mm upside down Big Piston forks. 140mm wheel travel |
| Rear Brake | Disc | Single 230mm fixed disc, ByBreTM single piston floating caliper, ABS |
| Rear Suspension | Hidden, free piston, coil-over monoshock; 43mm stroke, hydraulic preload adjustment | Gas monoshock RSU with external reservoir and pre-load adjustment. 120mm wheel travel |
Tyres & Wheels |
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| Front Tyre | 160/60 R18 | 110/80 R17 |
| Rear Tyre | 240/40 R18 | 150/70 R17 |
| Tyre Type | Tubeless | Tubeless |
| Wheel Type | Cast aluminum (Lakester) | Alloy |
Features & Technology |
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| Headlight | LED | DRL s LED |
Other Specifications |
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| Bike Image 1 | https://motoautiv.com/wp-content/uploads/2025/06/Blue.avif | https://motoautiv.com/wp-content/uploads/2025/10/speed400pearlmetallicwhitepewtergrey.webp |
| Bike Image 2 | https://motoautiv.com/wp-content/uploads/2025/06/Grey.avif | https://motoautiv.com/wp-content/uploads/2025/10/speed400phantomblackpewtergrey.webp |
| Bike Image 3 | https://motoautiv.com/wp-content/uploads/2025/06/Whiskey-fire.avif | https://motoautiv.com/wp-content/uploads/2025/10/speed400racingyellowpearlmetallicwhite.webp |
| Cluster | Analog with LCD | — |
| Color Options | Billiard Gray | #6B7074 Vivid Black | #0F0F10 Blue Burst | #1E4D8C Whiskey Fire / Vivid Black | #7A2D1B, #0F0F10 | Racing Red / Pearl Metallic White | #B11226, #F5F5F5 Racing Yellow / Pearl Metallic White | #F2B600, #F5F5F5 Phantom Black / Pewter Grey | #0F0F0F, #6B6B6B Pearl Metallic White / Pewter Grey | #F5F5F5, #6B6B6B |
| Cons | The Weight Is Impossible to Ignore – Parking, reversing, or making tight U-turns requires more effort than on most motorcycles. The bike feels considerably lighter once moving, but the weight is always present at low speeds. Not a Motorcycle That Enjoys Tight Corners – The Fat Boy is happiest on flowing roads. When the road becomes tight and twisty, its size and geometry become more noticeable. Wind Hits You Directly at Highway Speeds – Without a fairing or windscreen, long highway rides can become tiring because the rider takes the full force of the wind. Can Feel Warm in Traffic – Sitting in slow-moving traffic on a hot day makes the large V-twin's heat more noticeable around the legs. Passenger Comfort Is Average – The stock setup feels more focused on the rider. For frequent two-up riding, many owners look at accessory seats and backrests. Not Built Around Practicality – There is no meaningful storage space, and carrying luggage usually requires additional accessories. Running Costs Are Higher Than Average – Tyres, servicing, insurance, and genuine accessories can all add up compared to smaller motorcycles. Requires Some Experience to Get the Best Out of It – The combination of weight, engine size, and physical dimensions can feel intimidating for riders who are new to large-capacity cruisers. Floorboards Touch Down Earlier Than You Might Expect – Riders who push harder through corners will eventually find the limits of the cruiser-style setup. | Mileage can drop in city traffic - Some users report mileage going as low as 20–23 km/l in heavy traffic, depending on riding style. Heat in traffic conditions - Engine heat is noticeable in slow-moving traffic, especially in crowded city conditions. Vibrations at higher speeds - While smooth at low speeds, some riders feel vibrations creeping in above 100–110 km/h. Seat comfort could be better - The seat is slightly narrow, which may cause discomfort on longer rides. Limited features for the price - Some users feel that the feature list is not as extensive as expected, especially compared to some competitors. Minor quality or usability issues (reported by some users) - A few users have reported issues like slight engine noise, heating, or small glitches early on, though these are not universal. |
| Detailed Overview | Even among Harley-Davidson’s own motorcycles, the Fat Boy has always been difficult to mistake for anything else. The solid-disc Lakester wheels, broad fuel tank, chunky tyres, and low stance give it a silhouette that looks substantial from every angle. While many cruisers rely on chrome and visual complexity to create an impression, the Fat Boy’s design is built around simple, oversized elements that have remained part of its identity for decades. The motorcycle is based on Harley-Davidson’s Softail platform, which uses a hidden rear suspension arrangement beneath the seat area. From the side, the frame still resembles the rigid hardtail cruisers that inspired it, but underneath there is a modern monoshock setup responsible for absorbing road imperfections. The front suspension uses telescopic forks designed to support the motorcycle’s considerable weight while maintaining stability over varying road surfaces. A 1,923cc Milwaukee-Eight 117 V-twin engine sits prominently in the center of the motorcycle. Rather than encouraging riders to explore the upper reaches of the rev range, the engine develops much of its performance lower down, which influences how the Fat Boy behaves in everyday riding. The motorcycle can accelerate with relatively little throttle input, and the six-speed gearbox allows the engine to remain relaxed during highway travel. The large displacement and V-twin configuration are also major contributors to the motorcycle’s mechanical character and riding feel. Dimensionally, the Fat Boy is a substantial machine. Wide tyres at both ends, a long wheelbase, and a low seat height all contribute to its proportions. The low seating position places the rider close to the ground, while forward-mounted foot controls create the stretched riding posture commonly associated with large American cruisers. Combined with the wide handlebar, the rider’s position is very different from what would be experienced on a roadster or sport motorcycle. The Lakester wheels remain one of the defining visual features of the Fat Boy. Unlike conventional alloy wheels, their solid-disc-inspired design creates a unique appearance that has become closely associated with the model over the years. Alongside the broad tyres and muscular bodywork, these wheels play a significant role in shaping the motorcycle’s overall identity. Technology is present, although it is integrated more discreetly than on Harley-Davidson’s touring motorcycles. Modern versions include selectable riding modes, traction control, and ABS, with certain markets also receiving cornering-sensitive rider-assistance systems. Instead of a large touchscreen display, the Fat Boy uses a compact instrument setup focused primarily on essential riding information. An 18.9-litre fuel tank sits above the engine and forms one of the largest visual elements of the motorcycle. Lighting throughout the motorcycle uses LED technology, while the overall design remains intentionally uncluttered. There are few body panels, minimal visual distractions, and a clear emphasis on exposing the mechanical components that define the motorcycle. The Fat Boy’s specifications reveal a motorcycle shaped around traditional cruiser principles: a large-capacity V-twin engine, long-wheelbase chassis, low seating position, and substantial physical presence. Although modern electronics and engineering have been incorporated over time, the underlying layout remains closely tied to the formula that has defined the model for decades. | The Triumph Speed 400 MY25 (349cc) comes with a single-cylinder, liquid-cooled engine that is designed to offer smooth and easy performance for everyday riding. The engine produces around 37 PS of power and 32 Nm of torque, which means it has enough strength for city use as well as occasional highway rides. The power delivery is kept linear, so it does not feel sudden or difficult to control. This helps riders maintain better control in traffic and while riding at lower speeds. The bike is paired with a 6-speed gearbox, which allows it to handle both slow-moving city conditions and moderate highway speeds without much effort. The chassis of the bike is built to keep the overall weight manageable while maintaining stability. It uses a steel frame that helps in keeping the bike balanced, especially while riding through traffic or taking turns. The suspension setup includes upside-down front forks and a rear monoshock. This setup is designed to absorb bumps and uneven roads commonly found in India. It works well for regular road conditions, though sharper bumps can still be felt slightly. The bike runs on 17-inch alloy wheels at both ends, which are more suitable for road use and provide stable handling. The braking system includes disc brakes at both the front and rear, along with dual-channel ABS. This helps in providing controlled braking, especially during sudden stops or slippery road conditions. The braking performance is designed to be predictable rather than overly aggressive, which suits daily riding needs. The tyres are road-focused and provide decent grip under normal riding conditions. In terms of dimensions, the seat height is around 803 mm, which makes it accessible for a wide range of riders. The upright seating position, combined with a wide handlebar, allows the rider to sit comfortably without putting too much strain on the back or wrists. The fuel tank capacity is around 13 litres, which is sufficient for city use and short highway trips. However, the bike does not have any wind protection, so riding at higher speeds for long durations can feel tiring. The Triumph Speed 400 MY25 also comes with a mix of basic and modern features. It includes ride-by-wire throttle, switchable traction control, and dual-channel ABS, which add to rider safety and control. The instrument cluster is semi-digital, combining an analogue speedometer with a small digital display that shows information like fuel level, gear position, and trip data. The lighting system is fully LED, which helps with better visibility during night rides. Overall, the specifications of the Triumph Speed 400 MY25 are focused on providing a smooth, controlled, and easy riding experience, with a balance between performance, comfort, and everyday usability. |
| Expert Review | The Fat Boy has always been a motorcycle that prioritizes presence as much as performance. Even by cruiser standards, it feels substantial, whether you're looking at it parked or riding it down the road. The Milwaukee-Eight 117 engine suits the character of the bike perfectly, producing the kind of effortless torque that allows you to ride without constantly thinking about gear selection or engine speed. What stands out most is how planted the motorcycle feels once it's moving. The wide tyres, long wheelbase, and considerable weight create a sense of stability that encourages a relaxed riding style rather than an aggressive one. At the same time, those same traits mean the Fat Boy asks for a bit more effort in slow-speed situations and doesn't feel particularly eager when the road becomes tight and technical. The riding experience is less about chasing performance figures and more about the way the motorcycle delivers its power, carries its weight, and settles into a steady rhythm on open roads. Modern electronics have improved safety and usability, but they remain secondary to the traditional cruiser character that continues to define the Fat Boy., 4.4, MotoAutiv Team | The Triumph Speed 400 MY25 (349cc) is a modern-retro roadster that focuses more on everyday usability than outright performance. The updated 349cc single-cylinder engine delivers smooth and predictable power, especially in the low and mid-range, which makes it easy to ride in city traffic and manageable for most riders. While the performance is slightly lower compared to the earlier 398cc version, the difference is not very noticeable in regular riding conditions, and the bike still feels responsive enough for occasional highway use. The upright riding posture and wide handlebar offer good comfort and control, though the narrow seat can become uncomfortable on longer rides. The suspension setup handles typical road conditions well, providing a stable and composed ride, while the handling remains neutral rather than aggressive. Braking performance is adequate for daily use but does not feel very sharp under hard braking. The build quality and finish give it a premium feel, although the feature list is relatively simple compared to some competitors, and engine heat in traffic along with mild vibrations at higher speeds are still present. Overall, the bike is designed to offer a smooth, balanced, and easy riding experience suited for daily use., 4.5, MotoAutiv Team |
| FAQ (Manual Override) | Q: What type of motorcycle is the Harley-Davidson Fat Boy? A: The Fat Boy is classified as a heavyweight cruiser motorcycle, designed around relaxed riding ergonomics, a large V-twin engine, and long-distance road comfort. Q: Which engine powers the Fat Boy? A: The latest model uses the Milwaukee-Eight 117 V-twin engine paired with a 6-speed gearbox. Q: Is the Fat Boy suitable for long-distance rides? A: Yes. The relaxed ergonomics and torque-rich engine make it capable of covering long distances, although many owners add touring accessories for greater comfort. Q: What is the seat height of the Fat Boy? A: The seat height is approximately 675 mm, making it accessible to a wide range of riders. Q: Does the Fat Boy have cruise control? A: Availability depends on market and model year. Some versions include cruise control, while others may offer it as an accessory. Q: What is the fuel tank capacity of the Fat Boy? A: The motorcycle is equipped with an 18.9-litre fuel tank. Q: Does the Fat Boy have riding modes? A: Yes. Modern versions include selectable riding modes and electronic rider-assistance systems. Q: Is the Fat Boy comfortable for a passenger? A: Occasional two-up riding is possible, but the stock setup is more rider-focused than dedicated touring motorcycles. Q: How is the Fat Boy different from the Breakout? A: The Fat Boy focuses on a broad, muscular cruiser character with solid-disc wheels, while the Breakout adopts a stretched custom-cruiser design with a much wider rear tyre. Q: Does the Fat Boy have traction control and ABS? A: Yes. Modern versions include ABS, traction control, and other rider-assistance technologies. Q: What is the kerb weight of the Harley-Davidson Fat Boy? A: The motorcycle weighs approximately 315 kg in running condition, depending on market specification. Q: Is the Fat Boy beginner-friendly? A: The low seat height helps with accessibility, but the weight, engine size, and overall dimensions make it better suited to riders with some experience. Q: Does the Fat Boy support smartphone connectivity? A: The Fat Boy uses a relatively simple instrumentation setup compared to Harley's touring models, so smartphone integration is limited. Q: What body type does the Fat Boy belong to? A: It is categorized as a cruiser motorcycle, specifically a heavyweight cruiser designed around comfort, torque delivery, and road presence. | Q: What is the engine capacity of the Triumph Speed 400 MY25? A: The Triumph Speed 400 MY25 comes with a 349cc, single-cylinder, liquid-cooled engine. Q: Is the Triumph Speed 400 MY25 good for daily commuting? A: Yes, the Triumph Speed 400 MY25 is suitable for daily commuting due to its smooth engine, manageable power delivery, and comfortable upright riding posture. Q: What is the difference between the Triumph Speed 400 MY25 and the older Speed 400? A: The Triumph Speed 400 MY25 uses a 349cc engine focused more on efficiency and usability, while the older version had a 398cc engine with slightly higher performance. Q: What mileage does the Triumph Speed 400 MY25 offer? A: The Triumph Speed 400 MY25 typically delivers around 28–32 km/l in real-world conditions, depending on riding style and traffic. Q: Is the Triumph Speed 400 MY25 beginner-friendly? A: Yes, the Triumph Speed 400 MY25 is considered beginner-friendly because of its smooth throttle response, predictable power delivery, and balanced handling. Q: Does the Triumph Speed 400 MY25 have traction control and ride-by-wire? A: The Triumph Speed 400 MY25 offers basic electronic features but does not focus heavily on advanced electronics compared to some competitors. Q: Is the Triumph Speed 400 MY25 comfortable for long rides? A: The Triumph Speed 400 MY25 can handle occasional long rides, but the narrow seat and lack of wind protection may reduce comfort on longer journeys. Q: How is the performance of the Triumph Speed 400 MY25 engine? A: The Triumph Speed 400 MY25 engine delivers smooth and linear performance with a focus on low and mid-range usability rather than aggressive acceleration. Q: Are there vibrations or heating issues in the Triumph Speed 400 MY25? A: Some riders may notice engine heat in traffic and mild vibrations at higher speeds, which are common in this segment. Q: What type of riding is the Triumph Speed 400 MY25 best suited for? A: The Triumph Speed 400 MY25 is best suited for city riding and occasional highway use, rather than aggressive performance riding or off-road use. |
| Fuel System | Fuel Injection | Electronic fuel injection |
| Price Variants | STD | 2803000 | Standard | 231890 |
| Pros | Instantly Recognizable Design – Few motorcycles are as easy to identify from a distance as the Fat Boy. The solid-disc wheels, wide stance, and muscular proportions give it a presence that stands out even among other cruisers. Torque-Rich Engine Character – The Milwaukee-Eight 117 doesn't need to be revved hard to make progress. A small twist of the throttle is usually enough to get the bike moving with very little effort. Relaxed Riding Position – The low seat, wide handlebar, and stretched-out foot controls create a laid-back riding posture that suits cruising and long hours in the saddle. Feels Stable on Open Roads – Once the bike is moving, its weight starts working in its favour. It feels planted at highway speeds and doesn't get unsettled easily. High-Quality Finish – From the paintwork to the chrome detailing and metal components, the overall fit and finish reflects the premium nature of the motorcycle. Low Seat Height Helps at Stops – Despite being a large motorcycle, the low seat makes it easier for many riders to place both feet firmly on the ground. Modern Electronics Without Changing the Character – Features such as ABS, traction control, and riding modes work in the background without taking away from the traditional cruiser feel. Comfortable Engine for Cruising – The engine settles into a relaxed rhythm at highway speeds and rarely feels stressed during normal riding. | Smooth and refined engine - Many users say the Triumph Speed 400 MY25 feels very smooth in daily riding, with clean throttle response and easy power delivery. It works well in traffic and doesn’t feel stressful to ride. Strong performance for its segment - Riders often mention that the bike feels quick and responsive, with enough power for both city rides and highway cruising. It can comfortably maintain speeds around 80–100 km/h. Good handling and stability - Users highlight that the bike feels stable at higher speeds and confident in corners. The shorter wheelbase and chassis setup make it easy to handle in city traffic. Comfortable for everyday use - The upright riding posture, light clutch, and balanced ergonomics make it suitable for daily commuting and short rides. Premium build quality - Many owners appreciate the fit and finish, saying the bike feels well-built compared to others in the segment. Decent real-world mileage - Users report around 28–30 km/l in mixed riding, which is considered reasonable for this level of performance. |
| Starter | Electric | Self Start Only |
| Transmission | 6-speed manual | 6 Speed Manual |
