Quick Analysis
ATHER 450 Apex
26.0 pts
Unweighted: 34 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
KTM 50 SX
20.5 pts
Unweighted: 10 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Displacement | — | 49.9 cc |
| Engine Type | — | 1-cylinder, 2-stroke engine |
| Power | 7.0 kW | 5.3 bhp @ 11500 rpm |
| Torque | 26 Nm | 5.2 Nm @ 7500 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | — | 2.3 L |
| Mileage | — | 30 kmpl |
| Top Speed (km/h) | 100 | — |
Dimensions & Weight |
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| Kerb Weight | 111.6 | 41 kg |
| Seat Height | 780 | 653 mm |
Brakes & Suspension |
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| ABS | Combined braking system & regenerative braking | — |
| Front Brake | Hydraulically actuated triple-piston calliper disc, 200mm | Disc 160 mm |
| Front Suspension | Telescopic forks | XACT 35 WP Upside-Down fork, Ø 35 mm |
| Rear Brake | Hydraulically actuated single-piston calliper disc, 190mm | Disc 160 mm |
| Rear Suspension | Symmetrically mounted progressive monoshock | XACT WP mono shock |
Tyres & Wheels |
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| Front Tyre | 90/90 - 12 | 60/100 - 12 |
| Rear Tyre | 100/80 - 12 | 2.75 - 10 |
| Tyre Type | Tubeless | Tubed |
| Wheel Type | Alloy | Spoke |
Features & Technology |
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| Headlight | LED | — |
Other Specifications |
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| 0–40 km/h (s) | 2.9 | — |
| Anti-Theft / IoT Tracking | Yes | — |
| App Connectivity | Yes | — |
| Battery | 3.7 kWh Lithium-ion | — |
| Battery Capacity (kWh) | 3.7 | — |
| Battery Chemistry | Li-ion | — |
| Battery Warranty (Years) | 5 | — |
| Built-in GPS Navigation | Yes | — |
| Charger Output Power (kW) | 0.7 | — |
| Charging Port Type | Proprietary | — |
| Charging Time (Fast) | 1–1.5h | — |
| Charging Time (Standard) | 5.45 | — |
| Color Options | Indium Blue | #2A4B8D, #F04E23 | Electronic Orange |
| Connectivity Features | Bluetooth, Wi-Fi, 4G, navigation, call/music control | — |
| Cons | Relatively expensive — might feel like overkill if you only need basic commuting. Suspension and ride comfort may feel a bit firm on rough or potholed roads. Storage and seating/space may feel limited if you need more room or are a taller rider. Real-world range drops noticeably with aggressive riding or heavy load — and reliability depends on having charging access. The premium features and extra cost may not feel “worth it” for riders who don’t use them often. | High Maintenance: As a 2-stroke engine, it requires frequent servicing and tuning. Small Fuel Tank: Limited capacity means more frequent refills. Kick-Start Only: No electric start, which can be tricky for very young riders. Limited Power for Older Kids: The 50cc engine may not be enough as the rider grows or becomes more skilled. Sensitive to Tuning: Owners report issues like fouling spark plugs or needing to frequently re-jet the carb: “Used to run great … then started fowling plugs … Moved to a 95 main jet … About 15 kph slower …” Parts Cost & Availability: As a race‑oriented bike, some parts can be expensive or harder to source for older models. |
| Detailed Overview | The Ather 450 Apex is an electric scooter designed with a focus on performance and advanced features for urban use in India. It is powered by a permanent magnet synchronous motor paired with a 3.7 kWh battery pack. The motor produces around 7 kW of peak power and about 26 Nm of torque, which allows the scooter to accelerate quickly, especially at lower speeds. It can reach a top speed of around 100 km/h, and the 0–40 km/h acceleration is approximately 2.9 seconds. The scooter offers multiple riding modes such as SmartEco, Eco, Ride, Sport, and Warp+, which adjust how power is delivered depending on riding conditions and preferences. The battery is fixed and uses lithium-ion chemistry, and it is charged using a portable home charger or through Ather’s fast-charging network. A full charge using a standard charger takes around 5 hours and 45 minutes, while fast charging can reduce the time significantly for partial charging. The claimed range is around 157 km under IDC conditions, although real-world range typically varies between 110 and 120 km depending on speed, riding mode, and traffic conditions. In terms of design, the Ather 450 Apex includes a unique look with translucent side panels that partially reveal the internal structure. The scooter maintains a compact and sporty form factor, which helps in city riding and maneuverability. The overall weight is balanced to keep it manageable in daily conditions. The suspension setup includes telescopic front forks and a rear monoshock, which are tuned to provide stability, although bumps and uneven roads can still be felt. The braking system includes disc brakes at both ends with a combined braking system to improve control during sudden stops. The scooter is equipped with a touchscreen TFT display that shows speed, battery status, navigation, and ride data. It supports smartphone connectivity through Bluetooth and internet features like navigation, call alerts, and ride statistics. Over-the-air updates are also available, allowing the system software to be updated without visiting a service center. Additional features include reverse mode, side-stand sensor, and different levels of regenerative braking. The seating position is slightly forward but still comfortable for daily use, and the overall ergonomics are suited for urban commuting. Storage space is limited compared to larger scooters, which may affect practicality for carrying bigger items. The Ather 450 Apex is built to offer a combination of performance, technology, and everyday usability, with its overall experience depending on factors like charging access, road conditions, and traffic in India. | The KTM 50 SX is a purpose-built mini motocross bike, tailored primarily for very young and beginner racers who want to get a genuine motocross experience without jumping straight to bigger bikes. It’s more than just a “toy” — KTM has packed serious race-bike DNA into this 50cc model, making it a standout choice for youth motocross training and competitive racing. At the heart of the 50 SX is a 49.9 cc single-cylinder 2-stroke engine, which delivers a punchy yet manageable power output. According to KTM’s specs, this engine is paired with a centrifugal automatic clutch, meaning there’s no manual clutch lever to worry about — the clutch engages automatically, which is ideal for young riders still building coordination and confidence. The engine uses a Seletra 2p D36 system for fuel delivery (on some models), which helps in precise tuning and reliable performance. KTM has thoughtfully designed the chassis for both strength and agility. The frame is made from chromoly steel, which keeps it light but sturdy. The overall design ensures that the bike is highly maneuverable, making it easier for young riders to learn balance and control on a real race-ready structure. The 50 SX isn’t just about motor and frame — it comes with serious suspension too: a WP XACT 35 mm upside-down fork at the front and a WP mono‑shock at the rear.The front suspension travel is around 200 mm and the rear is close to 190 mm, giving enough give for track bumps and jumps. In terms of ergonomics, the seat height is just 653 mm, making it very accessible for younger riders. Ground clearance is around 233 mm, giving the bike enough space to handle uneven terrain without scraping too much.The fuel tank capacity is modest — 2.3 liters — but that’s more than enough for short motocross sessions that young riders typically do. For braking, KTM hasn’t compromised: the 50 SX is equipped with disc brakes both front and rear, each 160 mm in size. This provides good stopping power and control, which is very important for safety and learning advanced braking techniques. On the wheels front, the bike uses spoke wheels, keeping things light and rugged for off-road racing. Despite its small size, the 50 SX is very race-focused. The frame has been redesigned to mimic the flex and rigidity characteristics of full-size MX bikes. The new frame also comes with frame protectors, which help reduce damage in case of falls — a common occurrence when young riders are learning. The handlebars are lightweight aluminum, with a bend that suits smaller riders, and the footpegs are designed to give a solid grip even when things get muddy or rough. KTM also includes power-reduction kits in its parts catalog for the 50 SX. These kits let parents or coaches limit the power output while the rider is still learning, which is a smart way to scale the bike’s performance to the rider’s ability — and once they’re better, the full power can be unlocked. When it comes to reliability, the 50 SX has a liquid cooling system for better thermal management. The engine’s central crankshaft design helps in keeping the mass well-balanced, which contributes to smoother handling. As for maintenance, like all 2-stroke motorcycles, it does need regular care — but KTM has made key parts (like the clutch) durable, using a reinforced clutch basket for longevity. Overall, the KTM 50 SX is a very well-engineered youth motocross bike that brings real race performance to younger riders. It balances power, weight, and control in a way that helps beginners grow into serious racers. Whether for track training, competitive racing, or just building early riding skills, it’s absolutely one of the top choices in the mini-moto world. |
| Drive Modes | SmartEco, Eco, Ride, Sport, Warp+ | — |
| Expert Review | The Ather 450 Apex is positioned as a performance-focused electric scooter in India, aimed at riders who want quicker acceleration and higher top speed than regular EVs. Its motor delivers strong initial pickup, which is noticeable in city traffic as well as on open roads. The ride quality is slightly firm, so rough roads and potholes can be felt more clearly. It comes with a detailed electronics and connectivity package, which may take some time for new users to fully understand. Range and charging still depend on usage patterns and access to charging infrastructure. It is more relevant for riders who prioritize performance and features over simple commuting needs., 4.5, MotoAutiv Team | MotoAutiv Team |
| FAQ (Manual Override) | Q: What is the top speed of the Ather 450 Apex? A: The top speed is around 100 km/h. Q: How fast does the Ather 450 Apex accelerate from 0–40 km/h? A: It accelerates from 0–40 km/h in about 2.9 seconds. Q: What is the battery capacity of the Ather 450 Apex? A: It comes with a 3.7 kWh lithium-ion battery. Q: What is the real-world range of the Ather 450 Apex? A: You can typically expect around 110–130 km in mixed riding, and about 75–95 km in hard riding. Q: What is the certified range of the Ather 450 Apex? A: The official IDC-certified range is up to 157 km per charge. Q: How long does it take to charge the Ather 450 Apex? A: A full charge through the home charger takes roughly 5.75 hours. Q: What kind of motor does the Ather 450 Apex use? A: It uses a 7.0 kW PMSM motor that produces up to 26 Nm of torque. Q: Does the Ather 450 Apex have fast charging? A: It supports Ather fast charging, letting you top up quickly on compatible chargers. Q: What ride modes are available on the Ather 450 Apex? A: Modes include SmartEco, Eco, Ride, Sport, and Warp+. Q: What type of brakes does the Ather 450 Apex have? A: It has disc brakes at both front and rear, with combined braking and regenerative braking. Q: What is Magic Twist on the Ather 450 Apex? A: Magic Twist is a regenerative braking system that slows the scooter when you release the throttle. Q: How much does the Ather 450 Apex weigh? A: It weighs around 111.6 kg. Q: What is the under-seat storage capacity? A: It offers 22 litres of under-seat storage. Q: Does the Ather 450 Apex have navigation? A: Yes, it has onboard navigation integrated into the touchscreen display. Q: What size is the instrument display? A: It has a 7-inch touchscreen dashboard. | Q: What is the engine capacity of the KTM 50 SX? A: It has a 49.9 cc 2-stroke engine. Q: What kind of transmission does it use? A: The KTM 50 SX has a single-speed automatic transmission. Q: How is the KTM 50 SX started? A: It uses a kick-start. Q: Does it have a clutch? A: Yes — a centrifugal (adjustable) clutch, so the rider doesn’t have to use a manual clutch lever. Q: What is the fuel tank capacity? A: The fuel tank capacity is 2.3 litres. Q: What is the seat height? A: The seat height is 653 mm. Q: What is the weight of the bike? A: The dry (or “without fuel”) weight is about 43.5 kg for recent models. Q: What kind of suspension does the KTM 50 SX use? A: It comes with WP XACT suspension — a 35 mm upside-down fork in the front and a WP mono-shock at the rear. Q: What brakes does it have? A: It has disc brakes both at the front and rear, each 160 mm. Q: What power does the KTM 50 SX produce? A: The KTM 50 SX produces around 5.3–5.4 PS at ~11,500 rpm. Q: Is the KTM 50 SX road legal? A: No — it's designed for off-road / motocross use, not for street-legal riding. Q: What kind of clutch does it have for young riders? A: It uses a centrifugal clutch, which automatically engages at high RPM — good for beginners or young riders who don’t manually operate a clutch. Q: What is the ground clearance? A: The ground clearance is 233 mm. Q: Is there a guarantee or warranty for KTM 50 SX? A: According to specs, it has a 2-year standard warranty. Q: What is the typical maintenance challenge or issue to watch for? A: Some owners report carburetor tuning issues |
| Fast Charging Supported | Yes | — |
| Final Drive Type | belt | — |
| Ingress Protection (IP Rating) | IP67 | — |
| Motor Power (Continuous, kW) | -0.1 | — |
| Motor Power (Peak, kW) | 7 | — |
| Motor Type | PMSM | — |
| OTA Updates | Yes | — |
| Price Variants | Standard | 189946 | | 475000 |
| Pros | Strong, responsive acceleration — fun and confident around city traffic or during quick overtakes. Good top speed for an electric scooter, making it usable not just for city commutes but occasional longer or faster rides. Smart, modern features and a connected dashboard — adds convenience, navigation, and a premium feel. Adequate real-world battery range for daily commuting and moderate longer rides. Low maintenance compared with petrol scooters — simpler upkeep, no fuel hassles. | Very Lightweight: Makes it easy for young riders to handle and build confidence. Automatic Transmission: The centrifugal clutch and automatic gearbox simplify riding for beginners. Adjustable Suspension: High-quality WP fork and shock can be tuned to rider weight and track conditions. Racing‑Oriented Build: Frame and components are derived from KTM’s full-size SX range, giving a race-ready feel. Power-Reduction Kits Available: Helps beginners by limiting power until they’re ready for more. Good Cooling: Liquid cooling ensures the engine stays healthy even under hard off‑road use. Tool-Free Adjustability: Seat height, suspension, and other parts can be adjusted without special tools. |
| Range (Claimed, km) | 157 | — |
| Starter | Push Button Start | — |
| Torque (Electric, Nm) | 26 | — |
| Transmission | — | Manual |
| Vehicle Warranty (Years) | 3 | — |
