Quick Analysis
Bajaj Dominar 400
21.0 pts
Unweighted: 15 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
YAMAHA Aerox 155
7.0 pts
Unweighted: 4 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
||
| Cooling System | Liquid‑cooled | Liquid Cooled |
| Displacement | 349.13 cc | 155 CC |
| Engine Type | Single cylinder, DOHC, 4‑valve, Fuel Injected | Liquid cooled, 4-stroke, SOHC, 4-valve |
| Power | 40.6 PS @ 9000 rpm | 11.0kW(15.0PS)/8000r/min |
| Torque | 33.2 Nm @ 7500 rpm | 13.9N.m(1.4kgf.m)/6500r/min |
Performance & Efficiency |
||
| Fuel Tank Capacity | 13 L | 5.5 L |
| Mileage | — | 48.62 Kmpl |
Dimensions & Weight |
||
| Kerb Weight | 190 | 126 |
| Seat Height | 800 | 790 |
Brakes & Suspension |
||
| ABS | Dual‑channel ABS | Single Channel ABS |
| Front Brake | Disc (320 mm) with dual-channel ABS | Disc Brake(230mm) with ABS |
| Front Suspension | Telescopic, 43 mm USD Fork, Wheel Travel - 135 mm | Telescopic fork |
| Rear Brake | Disc (230 mm) with dual-channel ABS | Drum(130mm) |
| Rear Suspension | Multi-step Adjustable Mono Shock with Nitrox, Wheel Travel - 110 mm | Unit swing |
Tyres & Wheels |
||
| Front Tyre | 110/70‑17 tubeless | 110/80-14M/C 53P |
| Rear Tyre | 150/60‑17 tubeless | 140/70-14M/C 62P |
| Tyre Type | Tubeless | Tubeless |
| Wheel Type | Alloy | Alloy |
Features & Technology |
||
| Headlight | Full‑LED with Auto Headlamp On (AHO) | LED (Class D) |
Other Specifications |
||
| Battery | 12 V, 8 Ah VRLA | 12 V, 6.0 Ah |
| Bike Image 1 | https://motoautiv.com/wp-content/uploads/2025/07/D400-Green.avif | https://motoautiv.com/wp-content/uploads/2025/05/Metallic-Black-2.avif |
| Bike Image 2 | — | https://motoautiv.com/wp-content/uploads/2025/05/Racing-Blue-4.avif |
| Cluster | Bonded digital LCD with turn‑by‑turn navigation | Digital |
| Color Options | Aurora Green | #4A5D23 Charcoal Black | #232323 | Racing Blue | #0047AB Ice Fluo Vermillion | #F5F5F5, #FF5A36 Metallic Black | #1C1C1C |
| Cons | Heavy Kerb Weight – The motorcycle remains noticeably heavier than many rivals, especially during parking manoeuvres, low-speed riding, and congested city traffic. Heat Felt in Slow Traffic – The larger liquid-cooled engine can generate noticeable heat around the rider's legs during prolonged stop-and-go conditions. Fuel Efficiency Lower Than Smaller Motorcycles – Compared to 250cc and commuter-oriented motorcycles, fuel consumption is relatively higher, particularly during aggressive riding. Less Agile in Urban Conditions – While highly stable on highways, the motorcycle can feel less nimble than lighter street bikes in tight traffic situations. 13-Litre Fuel Tank Could Be Larger for Touring – Riders covering long highway distances may prefer a larger fuel tank to reduce the frequency of refuelling stops. Weight May Challenge New Riders – The motorcycle's size, power output, and kerb weight can take time to get used to for inexperienced riders. Premium Maintenance Costs – Tyres, brake components, and routine servicing generally cost more than those of smaller-capacity motorcycles. Advanced Electronics Still Limited – Some competitors now offer ride-by-wire throttles, TFT displays, multiple riding modes, and traction control systems that are absent on the Dominar 400. Suspension Setup Prioritizes Stability Over Agility – The motorcycle focuses more on highway comfort and stability than sharp cornering responsiveness. | Firm Suspension Setup - The most common complaint from owners is the stiff ride quality. Rough roads, potholes, and broken surfaces can be felt more noticeably compared to comfort-focused scooters. Limited Floorboard Practicality - Unlike conventional scooters, the Aerox has a central tunnel, which eliminates the flat floorboard. This can reduce convenience when carrying shopping bags or larger items. Large Turning Radius - Some riders find U-turns and tight-space maneuvering less convenient due to the scooter's longer wheelbase and sporty geometry. Premium Pricing - The Aerox 155 is positioned above many mainstream scooters, making it one of the more expensive options in the category. Pillion Comfort Could Be Better - While acceptable for city use, some pillion riders report that the rear seat can feel firm during longer journeys. Heavier Than Typical Scooters - At approximately 126 kg, the Aerox is noticeably heavier than most 125cc scooters, which can be felt while parking or pushing the scooter manually. |
| Detailed Overview | Long highway stretches are where the Bajaj Dominar 400 feels most at home. Unlike motorcycles that focus primarily on urban commuting or outright sport riding, the Dominar 400 is built around the idea of covering distance while maintaining comfort and stability. Its substantial dimensions, muscular fuel tank, upright riding posture, and touring-oriented equipment create a motorcycle that is equally capable of handling daily travel and extended weekend rides. At the heart of the motorcycle is a 349cc single-cylinder, liquid-cooled DOHC engine that produces around 40 PS of power and 33.2 Nm of torque. Paired with a six-speed gearbox, the engine delivers performance across a broad rev range, allowing riders to accelerate confidently, maintain highway cruising speeds, and overtake slower traffic without frequent downshifts. The liquid-cooling system helps regulate engine temperatures during demanding riding conditions, while fuel injection contributes to smooth throttle response and consistent power delivery. The motorcycle’s overall design reflects its touring-focused nature. A compact windscreen sits above the LED headlamp, helping reduce wind pressure on the rider during highway travel. The sculpted fuel tank, split-seat arrangement, and exposed perimeter frame give the motorcycle a muscular appearance, while LED lighting throughout the motorcycle adds a modern touch. The bodywork remains functional rather than overly aggressive, prioritizing rider comfort and practicality over track-inspired styling. Supporting the engine is a perimeter frame chassis combined with upside-down front forks and a rear monoshock suspension system. This setup is designed to provide stability at higher speeds while maintaining comfort across varying road conditions. Whether travelling on smooth highways or encountering uneven road surfaces, the suspension works to absorb impacts and maintain composure. The motorcycle’s relatively long wheelbase further contributes to its planted feel during long-distance riding. Stopping power comes from disc brakes at both ends, assisted by dual-channel ABS. The braking system is intended to provide controlled deceleration while reducing the chances of wheel lock-up under hard braking conditions. An assist-and-slipper clutch is also included, helping reduce clutch effort in everyday riding and improving stability during rapid downshifts. Technology and convenience features form another important part of the package. The digital instrument cluster displays essential riding information, including speed, fuel level, trip readings, gear position, and navigation-related data. Bluetooth connectivity allows integration with compatible smartphones for call alerts, message notifications, and turn-by-turn navigation. These features are aimed at riders who spend extended periods on the road and require easy access to travel information. Comfort remains central to the riding experience. A wide handlebar, upright seating position, and spacious seat help reduce fatigue during longer journeys. The 800 mm seat height accommodates a broad range of riders, while the 13-litre fuel tank provides a practical riding range between fuel stops. Together, these elements create a motorcycle that combines touring capability, modern technology, and everyday usability within the premium sports tourer segment. | The Yamaha Aerox 155 is a maxi-scooter that brings together scooter practicality and motorcycle-inspired engineering in a package designed for both urban commuting and higher-speed riding. Unlike conventional scooters that primarily focus on convenience and comfort, the Aerox 155 incorporates several performance-oriented components, giving it a distinct identity within the Indian scooter market. Its design features a sharp and aerodynamic body structure, aggressive front styling, twin LED headlamps, sculpted side panels, and a stepped seat arrangement that reflects its sporty character. The overall proportions are larger than those of most traditional scooters, contributing to its maxi-scooter appearance and road presence. At the heart of the Yamaha Aerox 155 is a 155cc, single-cylinder, liquid-cooled, fuel-injected engine. This powerplant produces approximately 15 PS of power and 13.9 Nm of torque and is paired with a continuously variable transmission (CVT). The engine incorporates Yamaha’s Variable Valve Actuation (VVA) technology, which adjusts valve timing according to engine speed to maintain performance across a wider rpm range. This allows the engine to deliver smooth low-speed operation in city traffic while retaining strong performance at higher speeds. Fuel injection technology further helps optimize throttle response, fuel delivery, and engine efficiency under varying riding conditions. The Aerox 155 is built on an underbone frame that contributes to structural rigidity and handling stability. One of its notable characteristics is the use of 14-inch alloy wheels at both the front and rear, which are larger than those found on many scooters in the segment. These larger wheels work alongside wide tubeless tyres to enhance stability, road grip, and overall handling dynamics. Suspension duties are handled by telescopic front forks and twin rear shock absorbers, forming a setup intended to balance comfort and riding control across different road conditions. Braking performance is managed by a front disc brake and rear drum brake combination. The front wheel is equipped with a single-channel Anti-lock Braking System (ABS), which helps reduce the chances of wheel lock-up during sudden braking situations. The scooter also includes a Traction Control System (TCS), a feature that monitors wheel slip and adjusts power delivery when traction levels are reduced, particularly on slippery road surfaces. The Yamaha Aerox 155 offers a fuel tank capacity of 5.5 litres and has a kerb weight of approximately 126 kg. Its seat height of 790 mm makes it accessible to a broad range of riders, while the long wheelbase contributes to stability during higher-speed riding. The scooter also provides approximately 24.5 litres of under-seat storage space, allowing riders to carry daily essentials and certain helmet types depending on their dimensions. Technology plays a significant role in the Aerox 155 package. The scooter features a fully digital LCD instrument cluster that displays speed, fuel level, trip information, and other riding data. Bluetooth connectivity through Yamaha’s Y-Connect application allows riders to access call alerts, message notifications, maintenance updates, fuel consumption statistics, and smartphone connectivity functions. The Version S variant additionally includes a Smart Key system, enabling keyless ignition and other convenience features. Additional equipment includes full LED lighting, an automatic start-stop system designed to reduce fuel consumption during idle periods, a side-stand engine cut-off function, and an electric starter system. These features contribute to the scooter’s modern equipment list while supporting everyday usability. Overall, the Yamaha Aerox 155 combines a liquid-cooled VVA engine, large wheels, traction control, ABS, modern connectivity features, and maxi-scooter styling into a package that differs significantly from conventional commuter scooters. Its specifications emphasize performance, stability, and technology while retaining the practicality expected from an automatic scooter. |
| Expert Review | Built around an updated 349cc single-cylinder, liquid-cooled DOHC engine, the Bajaj Dominar 400 continues to focus on long-distance touring capability while balancing everyday usability. The engine delivers strong mid-range performance and relaxed highway cruising characteristics, supported by a 6-speed gearbox and assist-and-slipper clutch. Its perimeter frame, upside-down front forks, and well-balanced chassis contribute to stable high-speed behaviour, while the upright riding position and spacious seating arrangement enhance rider comfort during extended journeys. Touring-oriented elements such as the windshield, wide handlebar, and luggage compatibility further reinforce its highway-focused nature. Modern features including LED lighting, Bluetooth connectivity, navigation support, and digital instrumentation add practicality for daily riding and touring alike. The motorcycle's heavier kerb weight improves stability at speed but can feel noticeable during low-speed manoeuvres and dense traffic conditions. Overall, the Dominar 400 combines strong touring ability, refined performance, premium hardware, and everyday practicality within the sports tourer motorcycle segment., 4.5, MotoAutiv Team | The Yamaha Aerox 155 stands apart from conventional scooters by focusing heavily on performance and handling rather than pure practicality. Its 155cc liquid-cooled engine, derived from the Yamaha R15 platform, delivers strong acceleration, smooth power delivery, and impressive highway cruising ability for a scooter. The chassis feels rigid and composed, while the 14-inch wheels and wide tyres provide a level of stability and cornering confidence that is uncommon in this segment. The Aerox remains one of the few scooters that feels equally comfortable filtering through city traffic and maintaining triple-digit highway speeds. However, this sporty character comes with compromises. The rear suspension is noticeably firm on broken roads, the central tunnel reduces floorboard utility, and the rear drum brake feels less sophisticated than the rest of the package. The feature list, including traction control, Bluetooth connectivity, LED lighting, and Smart Key technology on the Version S, adds a premium touch, but the scooter's overall appeal is defined more by its riding dynamics than by outright practicality. Multiple long-term reviews and owner experiences consistently highlight the Aerox's combination of refinement, high-speed stability, and engaging handling, while ride comfort and everyday utility remain the most frequently cited drawbacks., 4.5, MotoAutiv Team |
| FAQ (Manual Override) | Q: What is the engine capacity of the Bajaj Dominar 400? A: The latest Dominar 400 is powered by a 349cc single-cylinder, liquid-cooled, DOHC engine paired with a 6-speed gearbox. Q: Is the Bajaj Dominar 400 suitable for touring? A: Yes. The motorcycle is designed with touring in mind and offers comfortable ergonomics, stable highway manners, a windshield, and support for touring accessories. Q: What mileage does the Dominar 400 deliver? A: Most owners can expect a real-world fuel efficiency of approximately 28–35 kmpl, depending on riding style, speed, and road conditions. Q: What is the fuel tank capacity of the Dominar 400? A: The motorcycle comes with a 13-litre fuel tank. Q: Does the Dominar 400 have dual-channel ABS? A: Yes. Dual-channel ABS is offered as standard equipment. Q: What is the seat height of the Bajaj Dominar 400? A: The seat height is approximately 800 mm, making it accessible to a wide range of riders. Q: Does the Dominar 400 have Bluetooth connectivity and navigation? A: Yes. Recent versions include Bluetooth connectivity and turn-by-turn navigation through the digital instrument console. Q: What is the top speed of the Dominar 400? A: Under suitable conditions, the motorcycle can achieve approximately 150–160 km/h, depending on rider weight, weather, and road conditions. Q: Is the Dominar 400 comfortable for long highway rides? A: Yes. The upright riding position, spacious seat, windscreen, and stable chassis make it suitable for covering long distances. Q: Does the Dominar 400 have a slipper clutch? A: Yes. An assist-and-slipper clutch is provided to reduce clutch effort and improve stability during downshifts. Q: Is the Dominar 400 beginner-friendly? A: Riders with some experience can adapt to it comfortably, but its weight and performance may require a learning period for complete beginners. Q: How does the Dominar 400 differ from the Dominar 250? A: The Dominar 400 offers a larger and more powerful engine, stronger acceleration, and enhanced highway performance, while sharing a similar touring-focused design philosophy. Q: What type of motorcycle is the Bajaj Dominar 400? A: It is classified as a sports tourer motorcycle, combining long-distance comfort, highway stability, and everyday usability. Q: Are spare parts and service support easily available? A: Yes. Bajaj's widespread dealership and service network across India generally ensures convenient maintenance and spare parts availability. Q: Does the Dominar 400 support luggage and touring accessories? A: Yes. The motorcycle is commonly fitted with saddle stays, top racks, luggage carriers, tank bags, and other touring accessories, making it suitable for long-distance travel. | Q: What is the real-world mileage of the Yamaha Aerox 155? A: Most Yamaha Aerox 155 owners report real-world fuel efficiency between 38 and 45 km/l, depending on riding style, traffic conditions, and maintenance. Q: What is the top speed of the Yamaha Aerox 155? A: The Yamaha Aerox 155 can achieve a top speed of approximately 115-120 km/h under suitable riding conditions. Q: Does the Yamaha Aerox 155 use the same engine as the Yamaha R15? A: Yes, the Yamaha Aerox 155 uses a version of the same 155cc liquid-cooled, VVA-equipped engine found in the Yamaha R15 V4, adapted for scooter use. Q: Is the Yamaha Aerox 155 suitable for long-distance touring? A: Yes, the Yamaha Aerox 155 is often considered one of the most highway-capable scooters in India due to its powerful engine, stable chassis, and comfortable cruising characteristics. Q: Does the Yamaha Aerox 155 have traction control? A: Yes, the Yamaha Aerox 155 comes equipped with a Traction Control System (TCS), which helps improve stability on low-grip surfaces. Q: Does the Yamaha Aerox 155 have keyless ignition? A: The Version S variant of the Yamaha Aerox 155 features a Smart Key system that provides keyless ignition and additional convenience functions. Q: Can a full-face helmet fit in the Yamaha Aerox 155 under-seat storage? A: The Yamaha Aerox 155 offers approximately 24.5 litres of under-seat storage. Many full-face helmets can fit, although compatibility depends on the helmet's size and shell design. Q: What is the fuel tank capacity of the Yamaha Aerox 155? A: The Yamaha Aerox 155 is equipped with a 5.5-litre fuel tank. Q: Is the Yamaha Aerox 155 comfortable for daily commuting? A: Yes, the Yamaha Aerox 155 can be used for daily commuting, though its sporty ergonomics, firm suspension, and central tunnel make it less practicality-focused than traditional family scooters. Q: What is the seat height of the Yamaha Aerox 155? A: The Yamaha Aerox 155 has a seat height of 790 mm, making it accessible to a wide range of riders. Q: Does the Yamaha Aerox 155 have ABS? A: Yes, the Yamaha Aerox 155 comes with a front-wheel Anti-lock Braking System (ABS) as standard. Q: Why is the Yamaha Aerox 155 more expensive than many 125cc scooters? A: The Yamaha Aerox 155 features a larger liquid-cooled engine, traction control, ABS, Bluetooth connectivity, premium chassis components, and performance-oriented engineering, which contribute to its higher pricing compared to conventional 125cc scooters. |
| Fuel System | Fuel Injection | Fuel Injection |
| Price Variants | STD | 203214 | STD | 143120 S | 146120 |
| Pros | Strong Touring Performance – The updated 349cc liquid-cooled engine delivers strong acceleration and highway cruising ability, making long-distance riding more effortless. Improved Mid-Range Power Delivery – The engine offers better tractability and stronger mid-range performance, helping with overtakes and relaxed highway riding. Excellent Highway Stability – The motorcycle feels planted at higher speeds due to its weight, chassis setup, and long wheelbase, contributing to rider confidence during touring. Comfortable Riding Ergonomics – The upright seating posture, wide handlebars, and spacious seat help reduce fatigue on extended rides. Premium Touring-Oriented Hardware – Upside-down front forks, perimeter frame, dual-channel ABS, assist and slipper clutch, and LED lighting contribute to the motorcycle's equipment package. Refined Engine Character – The liquid-cooled DOHC engine delivers smoother power delivery and better refinement across varying riding conditions. Touring-Friendly Design – The windshield, luggage mounting capability, and stable chassis make the motorcycle suitable for highway travel and touring accessories. Feature-Rich Instrumentation – Bluetooth connectivity, navigation support, digital consoles, and ride information displays add convenience for touring and everyday riding. Good High-Speed Cruising Comfort – The engine remains relaxed at cruising speeds, helping riders cover long distances with less strain. | Powerful 155cc Engine - The Aerox 155 is widely praised for its performance. Its liquid-cooled, fuel-injected engine with Variable Valve Actuation (VVA) delivers strong acceleration and feels significantly more energetic than most scooters in the segment. Excellent Highway Capability - Many owners highlight the scooter's ability to cruise comfortably at highway speeds. The engine remains relaxed at higher speeds, making longer journeys more manageable than on typical 125cc scooters. Stable Handling - The rigid chassis, larger 14-inch wheels, and longer wheelbase contribute to confident handling. Riders often appreciate its stability while cornering and riding on open roads. Sporty Design - The maxi-scooter styling receives positive feedback for its aggressive appearance, sharp bodywork, and premium road presence. Feature-Rich Package - Features such as traction control, Smart Key technology (Version S), Bluetooth connectivity, LED lighting, side-stand engine cut-off, and a digital instrument console add modern functionality. Large Under-Seat Storage - The spacious storage compartment is capable of accommodating daily essentials and certain full-face helmets, adding practicality to the sporty design. Refined Engine Performance - Owners frequently mention the smoothness of the liquid-cooled engine, especially during high-speed cruising and longer rides. |
| Starter | Electric | Electric starter |
| Transmission | 6‑speed manual (with slipper clutch) | V-belt automatic |
