Quick Analysis
Bajaj CT125x
13.0 pts
Unweighted: 12 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
YAMAHA Aerox 155
14.5 pts
Unweighted: 8 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | Air‑cooled | Liquid Cooled |
| Displacement | 124.45 cc | 155 CC |
| Engine Type | 4 stroke, Air cooled Single cylinder, SOHC, DTSi | Liquid cooled, 4-stroke, SOHC, 4-valve |
| Power | 10.9 PS @ 8000 rpm | 11.0kW(15.0PS)/8000r/min |
| Torque | 11 Nm @ 5500 rpm | 13.9N.m(1.4kgf.m)/6500r/min |
Performance & Efficiency |
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| Fuel Tank Capacity | 11 L | 5.5 L |
| Mileage | 59.6 Kmpl | 48.62 Kmpl |
Dimensions & Weight |
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| Kerb Weight | 130 | 126 |
| Seat Height | 810 | 790 |
Brakes & Suspension |
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| ABS | — | Single Channel ABS |
| Front Brake | 130 mm Disc/Drum | Disc Brake(230mm) with ABS |
| Front Suspension | Telescopic (125 mm travel) | Telescopic fork |
| Rear Brake | 130 mm Drum | Drum(130mm) |
| Rear Suspension | SNS with Nitrox (100 mm travel) | Unit swing |
Tyres & Wheels |
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| Front Tyre | 80/100–17 Tubeless | 110/80-14M/C 53P |
| Rear Tyre | 100/90–17 Tubeless | 140/70-14M/C 62P |
| Tyre Type | Tubeless | Tubeless |
| Wheel Type | Alloy | Alloy |
Features & Technology |
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| Headlight | Halogen | LED (Class D) |
Other Specifications |
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| Battery | — | 12 V, 6.0 Ah |
| Bike Image 1 | https://motoautiv.com/wp-content/uploads/2025/07/Ebony-green.avif | https://motoautiv.com/wp-content/uploads/2025/05/Metallic-Black-2.avif |
| Bike Image 2 | https://motoautiv.com/wp-content/uploads/2025/07/Ebony-red-1.avif | https://motoautiv.com/wp-content/uploads/2025/05/Racing-Blue-4.avif |
| Cluster | — | Digital |
| Color Options | Ebony Black with Red Decals | #111111, #A00000 Ebony Black with Blue Decals | #111111, #2456A6 Ebony Black with Green Decals | #111111, #2F6B3D | Racing Blue | #0047AB Ice Fluo Vermillion | #F5F5F5, #FF5A36 Metallic Black | #1C1C1C |
| Cons | Despite the larger engine, performance remains commuter-oriented and does not feel particularly exciting at higher speeds. The motorcycle uses a front disc and rear drum brake setup, but braking performance is still tuned more for regular commuting than aggressive riding. The design is functional rather than premium, and some buyers may find the styling too utilitarian compared to modern 125cc commuters. The instrument cluster is basic and lacks features such as Bluetooth connectivity, navigation, or advanced digital displays. Engine vibrations can become noticeable when the motorcycle is ridden near its top speed for extended periods. The suspension is comfort-focused, which means handling feels stable but not especially sharp during fast cornering. Highway cruising ability is better than smaller commuter bikes, but the motorcycle is still primarily designed for daily transportation rather than long-distance touring. Since the model has been discontinued in India, availability of certain body panels, graphics, or model-specific cosmetic parts may become more limited over time compared to current-production motorcycles. | 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 | The Bajaj CT 125X is a commuter motorcycle that has been developed with an emphasis on practicality, durability, and everyday usability. While it shares the basic purpose of most commuter bikes, providing economical transportation, it introduces several design elements that make it stand apart from conventional city-focused commuters. Features such as a metal bash plate, fork gaiters, crash guards, and semi-knobby tyres give the motorcycle a more rugged appearance and highlight its focus on handling rough road conditions alongside regular urban commuting. Powering the motorcycle is a 124.4cc single-cylinder, air-cooled engine paired with a 5-speed gearbox. The engine is tuned to deliver usable low and mid-range performance rather than aggressive acceleration. This tuning allows the motorcycle to respond smoothly in city traffic and makes it easier to ride at everyday speeds. Compared to smaller 100cc commuter motorcycles, the additional engine capacity provides improved pulling power, which can be useful when carrying a pillion rider, transporting luggage, or riding on inclines. The 5-speed transmission also helps maintain a more relaxed engine speed during longer rides and moderate highway usage. Fuel efficiency remains an important part of the motorcycle’s overall character. Real-world mileage generally falls in the range of approximately 55–65 km/l depending on riding habits, traffic conditions, and maintenance. Combined with its 11-litre fuel tank, the motorcycle offers a riding range that suits riders who cover substantial distances as part of their daily routine. The riding posture is designed around comfort and control. A wide handlebar, upright seating position, and neutral footpeg placement create a natural riding triangle that does not place excessive strain on the rider. The seat is long and reasonably spacious, allowing both rider and pillion to sit comfortably during daily commutes. These ergonomics make the motorcycle suitable for prolonged periods of use in urban environments and on mixed road surfaces. Suspension duties are handled by telescopic front forks and dual rear shock absorbers. The setup is tuned primarily to absorb uneven surfaces and reduce the impact of potholes, speed breakers, and damaged roads. This suspension configuration works together with the motorcycle’s relatively high ground clearance, allowing it to travel over rough patches without frequent contact between the underside of the bike and the road surface. The semi-knobby tyre pattern further contributes to the motorcycle’s ability to maintain grip on mixed terrain, including gravel roads and less-developed routes. Visually, the CT 125X follows a straightforward and functional design philosophy. The bodywork remains simple, but the addition of protective elements and contrasting graphics creates a tougher appearance than a typical commuter motorcycle. Alloy wheels, tank pads, and practical utility-focused components contribute to the overall design theme without significantly increasing complexity. Braking performance varies depending on the variant, with front disc and drum brake options offered during its production run. The motorcycle uses Combined Braking System (CBS), which distributes braking force between the wheels to improve stability during braking. Tubeless tyres add another practical element by reducing inconvenience in the event of minor punctures. The feature list remains focused on essential functionality. The instrument cluster provides basic riding information in a simple and easy-to-read format, while electric start functionality improves convenience during daily use. Unlike premium motorcycles, the CT 125X does not rely heavily on advanced electronics or connected technologies, instead maintaining a straightforward mechanical setup aimed at routine transportation and ease of ownership. | 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 | The Bajaj CT 125X feels like a motorcycle developed for riders who need something tougher than a typical city commuter without moving into a larger or more expensive segment. Its 124.4cc engine provides a noticeable improvement in pulling power over most 100cc commuters, making daily riding with a pillion or luggage feel less demanding. The suspension setup is tuned for comfort, and the higher ground clearance, bash plate, fork gaiters, and semi-knobby tyres give the bike a practical advantage on broken roads and rural routes. The riding posture remains upright and relaxed, which helps during long hours of commuting. Rather than focusing on modern technology or sporty performance, the CT 125X prioritizes durability, simplicity, and ease of ownership. Features remain basic and highway performance is limited by commuter-bike standards, but the motorcycle is clearly aimed at riders who value robustness and everyday usability above everything else., 4.3, 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: Is the Bajaj CT 125X discontinued in India? A: Yes. Bajaj has discontinued the CT 125X from its current India lineup, although used models are still available in the pre-owned market. Q: What engine does the Bajaj CT 125X use? A: It is powered by a 124.4cc single-cylinder, air-cooled engine paired with a 5-speed gearbox. Q: What mileage does the Bajaj CT 125X deliver? A: Real-world mileage generally ranges between 55–65 km/l depending on riding conditions and maintenance. Q: What is the top speed of the CT 125X? A: The motorcycle can reach an approximate top speed of around 95–100 km/h. Q: What makes the CT 125X different from the CT 110X? A: The CT 125X gets a larger 124.4cc engine, a 5-speed gearbox, and stronger performance while retaining the rugged commuter design. Q: Does the Bajaj CT 125X have a front disc brake? A: Yes. Higher variants were offered with a front disc brake, while some versions used a drum brake setup. Q: Does the CT 125X have ABS? A: No. The motorcycle does not offer ABS and instead uses CBS (Combined Braking System). Q: What suspension setup does the CT 125X use? A: It uses telescopic front forks and dual rear shock absorbers. Q: What is the fuel tank capacity of the CT 125X? A: The motorcycle comes with an 11-litre fuel tank. Q: What is the kerb weight of the CT 125X? A: Depending on the variant, kerb weight is approximately 130 kg. Q: Does the CT 125X use tubeless tyres? A: Yes, it comes equipped with tubeless tyres mounted on alloy wheels. Q: Is the CT 125X suitable for rough roads? A: Yes. The higher ground clearance, semi-knobby tyres, bash plate, and comfort-oriented suspension help it handle rough surfaces more effectively than many standard commuters. Q: Does the CT 125X have electric start? A: Yes, electric start was available on the motorcycle. Q: Is the Bajaj CT 125X beginner-friendly? A: Yes. The upright ergonomics, predictable power delivery, and manageable weight make it easy for new riders to handle. | 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 | Carburetor | Fuel Injection |
| Price Variants | Drum | 73702 Disc | 76902 | STD | 143120 S | 146120 |
| Pros | The 124.4cc engine offers noticeably stronger pulling power than typical 100–110cc commuter motorcycles, making overtakes, pillion riding, and carrying luggage easier in everyday use. The motorcycle is built with rough-road practicality in mind. Features such as the metal bash plate, fork gaiters, crash guards, and higher ground clearance help it cope better with broken roads and rural routes. Ride comfort is a strong point. The suspension setup absorbs potholes, speed breakers, and uneven surfaces reasonably well, making long daily commutes less tiring. Fuel efficiency remains impressive for a 125cc motorcycle, with real-world mileage often ranging between 55–65 km/l depending on riding conditions. The upright riding posture, wide handlebar, and spacious seat create a comfortable riding position for both city commuting and longer daily journeys. The motorcycle feels mechanically simple, which helps keep maintenance costs affordable and servicing straightforward even in smaller towns. The rugged design gives it a tougher visual identity than most conventional commuter motorcycles in the segment. Tubeless tyres and electric start improve convenience for everyday ownership. | 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 | Kick and Self Start | Electric starter |
| Transmission | 5‑speed | V-belt automatic |
