Quick Analysis
Bajaj CT125x
13.5 pts
Unweighted: 13 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
YAMAHA Aerox 155 Version S
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 | 45 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/Racing-Blue-2.avif |
| Bike Image 2 | https://motoautiv.com/wp-content/uploads/2025/07/Ebony-red-1.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 |
| 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. | Stiff suspension - This is probably the most common complaint. Riders often mention that potholes and broken roads are felt more sharply compared to scooters like the Activa or Jupiter. Large turning radius - Because of its sporty geometry and longer wheelbase, maneuvering in tight spaces and U-turns can require extra effort. Limited footboard practicality - Unlike conventional scooters, the Aerox has a central tunnel. Owners who regularly carry grocery bags or larger items on the floorboard find this inconvenient. Rear seat comfort - While the rider seat is generally comfortable, some pillion riders complain that the rear seat is a bit high and firm for long journeys. Higher maintenance costs - Compared to a typical 110cc or 125cc scooter, service costs and spare parts can be slightly more expensive due to the liquid-cooled engine and premium components. |
| 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 Version S is a maxi-scooter that combines the convenience of an automatic scooter with engineering elements typically found in Yamaha’s performance-oriented motorcycles. Its design follows a sporty and aerodynamic approach, featuring a sharp front apron, centrally mounted LED headlamp, muscular body panels, and a stepped seat layout. The overall proportions are noticeably larger than those of conventional scooters, giving it a distinctive road presence while also accommodating a sizeable under-seat storage compartment. Powering the Aerox 155 Version S is a 155cc, single-cylinder, liquid-cooled, fuel-injected engine that produces approximately 15 PS of power and 13.9 Nm of torque. The engine incorporates Yamaha’s Variable Valve Actuation (VVA) technology, which adjusts valve timing to help maintain performance across different engine speeds. Unlike smaller commuter scooters that prioritize low-speed operation, the Aerox’s engine is designed to deliver a broader powerband, allowing it to handle city riding as well as sustained highway speeds. Power is transmitted through a CVT automatic gearbox, eliminating the need for manual gear changes and making operation straightforward in varying traffic conditions. The scooter is built around an underbone frame that contributes to structural rigidity and handling stability. Suspension duties are managed by telescopic front forks and twin shock absorbers at the rear. This setup is intended to balance everyday usability with responsive handling characteristics. The Aerox rides on 14-inch alloy wheels at both ends, which are larger than those found on many scooters in the segment. The larger wheel size can influence stability and road feedback, particularly at higher speeds. Braking performance is handled by a front disc brake and a rear drum brake. The scooter is equipped with a single-channel Anti-lock Braking System (ABS) for the front wheel, helping reduce the likelihood of wheel lock-up during sudden braking situations. The Version S variant also features Traction Control System (TCS), a technology that monitors wheel slip and adjusts power delivery when necessary to maintain traction on low-grip surfaces. In terms of features, the Aerox 155 Version S includes a fully digital LCD instrument console that displays information such as speed, fuel level, trip data, and other riding information. Bluetooth connectivity through Yamaha’s Y-Connect application enables smartphone integration, allowing riders to access call alerts, message notifications, maintenance reminders, and fuel consumption data. The Smart Key system offered on the Version S variant introduces keyless operation, enabling ignition control and scooter access without physically inserting a key. The fuel tank capacity stands at 5.5 litres, while the kerb weight is approximately 126 kg. The seat height of 790 mm and wheelbase of 1,350 mm contribute to the scooter’s riding ergonomics and stability. Storage practicality is supported by a large under-seat compartment that can accommodate daily essentials and certain helmet types depending on their size and shape. Additional equipment includes LED lighting throughout, an automatic start-stop system designed to reduce fuel consumption during idle periods, and a side-stand engine cut-off feature. Together, these specifications position the Yamaha Aerox 155 Version S as a feature-rich scooter that blends modern technology, performance-focused engineering, and everyday commuting functionality within a single package. |
| 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 Version S occupies a unique space in the Indian scooter market by combining the practicality of a scooter with performance characteristics that are more commonly associated with entry-level motorcycles. Its 155cc liquid-cooled engine delivers strong acceleration throughout the rev range, while the rigid chassis and larger wheels contribute to confident handling at both city and highway speeds. The riding position feels sporty yet relaxed enough for daily commuting, though the firm suspension setup tends to transmit road imperfections more noticeably on rough surfaces. Features such as traction control, Smart Key technology, and Bluetooth connectivity add to the modern appeal, while the maxi-scooter design provides a distinct road presence. However, the focus on performance and styling does bring certain compromises in everyday practicality, particularly when compared to conventional family-oriented scooters. The Aerox ultimately presents a different approach to scooter design, emphasizing riding dynamics and high-speed composure alongside everyday usability., 4.4, 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 Version S? A: Most Yamaha Aerox 155 Version S owners report a real-world fuel efficiency of around 38-45 km/l, depending on riding style, traffic conditions, and maintenance. Q: Is the Yamaha Aerox 155 Version S suitable for long rides? A: Yes, the Yamaha Aerox 155 Version S is considered one of the better scooters for highway touring due to its powerful engine, stable chassis, and comfortable cruising ability. Q: What is the top speed of the Yamaha Aerox 155 Version S? A: The Yamaha Aerox 155 Version S can achieve a top speed of approximately 115-120 km/h under favorable riding conditions. Q: Does the Yamaha Aerox 155 Version S have traction control? A: Yes, the Yamaha Aerox 155 Version S comes equipped with Traction Control System (TCS), which helps improve grip during acceleration on slippery surfaces. Q: Can a full-face helmet fit inside the Yamaha Aerox 155 Version S under-seat storage? A: The Yamaha Aerox 155 Version S offers a large under-seat storage compartment, but whether a full-face helmet fits depends on the helmet's size and shell design. Q: Is the Yamaha Aerox 155 Version S comfortable for a pillion rider? A: The Yamaha Aerox 155 Version S provides adequate pillion space, though some users feel the elevated rear seat and firm suspension can affect comfort on longer journeys. Q: Does the Yamaha Aerox 155 Version S have keyless ignition? A: Yes, the Version S variant of the Yamaha Aerox 155 comes with a Smart Key system that enables keyless ignition and additional convenience features. Q: What are the service costs of the Yamaha Aerox 155 Version S? A: Yamaha Aerox 155 Version S service costs are generally higher than those of typical 125cc scooters because of its liquid-cooled engine and premium components. Q: Is the Yamaha Aerox 155 Version S good for daily commuting? A: Yes, the Yamaha Aerox 155 Version S can be used for daily commuting, although its sporty setup and central tunnel make it slightly less practical than traditional family scooters. |
| Fuel System | Carburetor | Fuel Injection |
| Price Variants | Drum | 73702 Disc | 76902 | | 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 and exciting performance - The 155cc liquid-cooled engine borrowed from the Yamaha R15 is the biggest highlight. Owners frequently mention that the Aerox feels significantly quicker than traditional scooters, especially during overtakes and highway riding. Excellent highway capability - Unlike most scooters that feel stressed at higher speeds, the Aerox can comfortably cruise at 80–100 km/h. Many users appreciate its stability on long rides. Sporty handling - The motorcycle-like frame and larger wheels give the scooter a planted feel around corners. Riders often say it feels more like a lightweight bike than a conventional scooter. Good fuel efficiency for the performance - Most owners report real-world mileage between 38–45 km/l depending on riding style, which is considered respectable for a 155cc performance scooter. Premium styling - The aggressive maxi-scooter design attracts a lot of attention. Many buyers choose the Aerox simply because it looks different from every other scooter on the road. Feature-rich Version S - The Smart Key system, answer-back function, automatic start-stop system, Bluetooth connectivity, and traction control add a premium touch that owners appreciate. |
| Starter | Kick and Self Start | Electric starter |
| Transmission | 5‑speed | Automatic |
