Quick Analysis
ATHER 450 Apex
5.5 pts
Unweighted: 7 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
KTM 50 SX
20.0 pts
Unweighted: 9 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
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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 |
Dimensions & Weight |
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| Kerb Weight | 111.6 kg | 41 kg |
| Seat Height | 780 mm | 653 mm |
Brakes & Suspension |
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| Front Brake | Hydraulically actuated triple-piston calliper disc | Disc 160 mm |
| Front Suspension | Telescopic forks | XACT 35 WP Upside-Down fork, Ø 35 mm |
| Rear Brake | Hydraulically actuated single-piston calliper disc | 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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| Battery | 3.7 kWh Lithium-ion | — |
| Color Options | Edium Blue | Electronic Orange |
| 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 | From the moment you swing a leg over the Ather 450 Apex, you quickly realize this isn’t just another electric scooter — it’s meant for people who care about performance, control and smart urban commuting. The heart of the ride is a well-tuned 7.0 kW Permanent Magnet Synchronous Motor (PMSM). Thanks to that, the Apex produces up to 26 Nm of torque and delivers brisk acceleration. The numbers are impressive on paper — 0 to 40 km/h in about 2.9 seconds — but on the road that translates to a quick launch off the traffic light, a feeling of immediacy and confidence in start-stop city traffic. What really stands out is the top-end power: the Apex can push beyond the 100 km/h mark, which is rare for an electric scooter in everyday commuter territory. That means the scooter doesn’t just shine in stop-and-go traffic — it’s also capable enough for longer rides, smoother expressway bursts, or overtaking with composure, rather than relying on brute throttle. Under the floorboard lies a 3.7 kWh lithium-ion battery pack. According to the maker, a full charge delivers a certified “IDC” range of up to 157 km — though real-world results will depend heavily on riding style, mode selected, and load (rider + pillion + cargo). In everyday mixed use, you might see somewhere between 110–130 km on a charge if riding moderately, or closer to 75–95 km if you’re leaning on the scooter’s performance edge with aggressive acceleration or using “Warp+” mode. That makes the Apex genuinely practical for daily commuting and occasional long-ish rides. Recharging doesn’t take forever either: with the standard home charger, going from zero to full takes roughly 5¾ hours. For many users, that means a single overnight charge can give you more than a day’s worth of commuting — convenient and low-friction. Of course, power is nothing without control — and on that front, the Apex doesn’t disappoint. Braking is handled by disc brakes at both the front and rear, paired with a combined braking system plus regenerative braking. The regenerative braking is enhanced via a feature called “Magic Twist”: simply releasing the throttle initiates deceleration and regeneration, which smoothens urban rides and helps squeeze out a bit more from the battery. That also means less reliance on brake levers for everyday slowing, making riding more intuitive — especially in stop-heavy traffic. Ride quality strikes a balance between agility and comfort. The suspension setup — telescopic front forks and a monoshock rear — combined with relatively light kerb weight (about 111.6 kg) and compact 12-inch wheels, makes the scooter nimble and easy to manoeuvre through crowded lanes or narrow city roads. For you, that translates into easy overtakes, nippy turns, and less stress when weaving through traffic, while the suspension does enough to absorb most urban bumps and potholes without jarring you. Practicality isn’t ignored either: there’s an under-seat storage of generous 22 litres — handy for a helmet, groceries or a backpack — and seat height is accessible for most riders. In real life, that means you don’t have to worry about where to stash your stuff, and mounting or dismounting remains easy even in everyday use. But what really makes the Apex feel like a “modern scooter of 2025” is how connected and smart it is. A sharp 7-inch touchscreen dashboard offers smartphone connectivity, navigation (via Google Maps), music and call controls, notifications and more. You don’t need to dig out your phone for directions — just glance at the dash. Features such as auto-cancel indicators, “guide-me-home” lights, emergency stop signal, and even “infinite cruise” (cruise-like comfort for longer trips) lend the scooter a layer of convenience and modernity that gets appreciated in day-to-day life. For many riders, having multiple ride modes — ranging from Smart Eco and Eco to Sport and the aggressive Warp+ — is a big plus. It means you can tailor the ride depending on traffic, terrain or mood: ride efficiently during daily commutes, or unlock full power when you want a spirited ride. What this all adds up to — in simple human terms — is an electric scooter that doesn’t force compromises. You get the zippy agility and ease of a scooter tailored for city roads, combined with enough punch, speed, and sophistication to make longer or faster rides genuinely reasonable. Whether you’re weaving through street traffic in tight lanes, commuting to work, or taking a leisurely evening ride out of town, the Ather 450 Apex feels ready for it. | 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. |
| Expert Review | 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 |
| Price Variants | | 189999 | | 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. |
| Transmission | — | Manual |
