Quick Analysis
Aprilia Storm 125
26.0 pts
Unweighted: 18 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
KTM 50 SX
10.5 pts
Unweighted: 8 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | Air‑cooled | Liquid Cooled |
| Displacement | 124.45 cc | 49.9 cc |
| Engine Type | Single‑cylinder, 4‑stroke, air‑cooled, 3‑valve | 1-cylinder, 2-stroke engine |
| Power | 9.92 PS @ 7700 rpm | 5.3 bhp @ 11500 rpm |
| Torque | 9.7 Nm @ 6000 rpm | 5.2 Nm @ 7500 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 6.5 L | 2.3 L |
| Mileage | 40 kmpl | 30 kmpl |
Dimensions & Weight |
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| Kerb Weight | 118 | 41 |
| Seat Height | 780 | 653 |
Brakes & Suspension |
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| ABS | No, CBS | — |
| Front Brake | Ø 220 mm disc with hydraulic control assisted by CBS | Disc 160 mm |
| Front Suspension | Hydraulic double-telescopic fork | XACT 35 WP Upside-Down fork, Ø 35 mm |
| Rear Brake | Ø 140 mm drum brake | Disc 160 mm |
| Rear Suspension | Mono Shock Absorber | XACT WP mono shock |
Tyres & Wheels |
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| Front Tyre | 120/80‑12 | 60/100 - 12 |
| Rear Tyre | 130/80‑12 | 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 | 12 V / 5 Ah | — |
| Bike Image 1 | https://motoautiv.com/wp-content/uploads/2025/12/sr_storm_yellow-scaled.webp | — |
| Cluster | Analogue + digital console | — |
| Color Options | Matte Red | #e3292f Matte Yellow| #ffff00 | Electronic Orange | #F2771A |
| Cons | The seat is firm and compact, which can feel less comfortable on longer rides or with a pillion. The suspension is firm, so rough or pothole-laden roads transmit more bumps to the rider. Fuel tank capacity is modest at 6.5 litres, limiting range for longer trips. Storage space is limited, restricting the ability to carry larger items or full-face helmets comfortably. Being a smaller-displacement scooter, highway cruising is limited, and top speeds are moderate. | 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. Parts Cost & Availability: As a race‑oriented bike, some parts can be expensive or harder to source for older models. |
| Detailed Overview | The Aprilia Storm 125 is positioned as a 125cc scooter that combines everyday usability with a slightly rugged and sporty design approach. At its core, it uses a 124.45cc, single-cylinder, air-cooled engine that produces close to 10 PS of power and around 9.7 Nm of torque. This engine is paired with a CVT automatic transmission, which keeps the riding experience simple and smooth, especially in city traffic. The throttle response feels linear, and while it is not tuned for aggressive performance, it delivers enough power for regular commuting, short bursts of acceleration, and occasional overtakes. One of the distinguishing aspects of the Storm 125 is its design and tyre setup. Unlike most scooters in this segment, it features chunkier, wider tyres that are intended to offer better grip on uneven or broken roads. This, combined with its slightly upright riding stance, gives the scooter a more planted feel when riding over rough patches or poorly maintained streets. The suspension setup consists of telescopic forks at the front and a monoshock at the rear, which is tuned to handle typical urban road conditions. It manages bumps reasonably well, although sharper potholes can still be felt depending on speed. The overall dimensions and weight make it manageable for a wide range of riders. Its lightweight construction helps with maneuverability in traffic and makes it easier to handle at low speeds. The seat height is accessible, and the riding posture is neutral, allowing riders to sit upright without putting too much strain on the back or wrists. This makes it suitable for daily commutes, short errands, and general urban usage. In terms of braking, the Storm 125 comes with a front disc brake and a rear drum brake, supported by a combined braking system (CBS). This setup provides adequate stopping power for city riding conditions and helps maintain stability during braking. The 12-inch wheels also contribute to balance and control, especially when navigating through crowded streets. The feature list on the Storm 125 is relatively simple compared to some of its competitors. It includes a semi-digital instrument cluster that displays essential information such as speed, fuel level, and trip details. The lighting setup is conventional, and there are no advanced connectivity features like Bluetooth or navigation. Storage space is also fairly standard, with under-seat storage that is enough for basic daily items but not particularly spacious. From a practical standpoint, the scooter focuses on ease of use and straightforward functionality. The fuel tank capacity is around 6.5 litres, which, combined with its efficiency, provides a reasonable riding range for city use. Maintenance requirements are similar to other scooters in this category, and the mechanical simplicity helps keep things uncomplicated for everyday ownership. Overall, the Aprilia Storm 125 presents itself as a scooter that blends a slightly rugged design with city-friendly performance and handling, offering a different approach compared to more feature-focused or comfort-oriented options in the 125cc segment. | 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 | The Aprilia Storm 125 comes across as a sporty-looking 125cc scooter that focuses more on rugged styling and everyday usability than outright performance. It is powered by a 124cc three-valve engine producing around 9.5–10 PS, which feels smooth and refined for city riding, though not the quickest when compared to rivals like the Ntorq. Acceleration is decent for daily traffic, but it requires a bit of throttle input to feel lively, especially during overtakes. The standout element is its chunkier tyres and upright riding stance, which give it better grip and confidence on rough or broken roads, making it slightly more versatile than typical scooters. Suspension is tuned for comfort, and the lightweight body helps with easy handling in urban conditions. However, the feature list remains basic, with a simple semi-digital console and no advanced connectivity, while practicality is average with limited storage space., 4, MotoAutiv Team | The KTM 50 SX is powered by a 49.9cc liquid-cooled two-stroke engine producing 5.4 PS at 11,500 rpm, designed as an entry-level mini motocross bike for young riders aged 7 and above beginning their competitive racing journey. The engine uses a 3-shaft design with the crankshaft positioned near the center of gravity, and features a centrifugal automatic clutch that reduces complexity and boosts riding confidence for inexperienced riders. The chassis features a chromium-molybdenum steel frame paired with a state-of-the-art WP XACT AER fork and fully adjustable monoshock, providing precision handling suitable for learning racing technique. In the Indian context, the 50 SX serves as an ideal entry platform for children with access to organized motocross training facilities in urban centers, though its competitive pricing and maintenance requirements make it best suited for families committed to structured racing programs rather than casual riding., 4.5, MotoAutiv Team |
| FAQ (Manual Override) | Q: What is the mileage of the Aprilia Storm 125? A: The scooter offers a real-world mileage of around 35–40 km/l, depending on traffic and riding style. Q: Is the Aprilia Storm 125 good for daily commuting? A: Yes, it works well for city commuting due to its smooth engine, lightweight body, and easy handling in traffic. Q: How is the performance of the Aprilia Storm 125? A: The 124cc engine produces around 10 PS and offers decent performance for city use, though it is not the quickest in its segment. Q: What makes the Aprilia Storm 125 different from other scooters? A: Its chunky tyres and slightly rugged design give it better grip and confidence on uneven or rough roads compared to typical scooters. Q: Is the Aprilia Storm 125 comfortable for long rides? A: It is more suited for short to medium rides, as the seat and overall setup are designed mainly for city use rather than long-distance comfort. Q: What is the top speed of the Aprilia Storm 125? A: The scooter has a top speed of around 90 km/h, which is adequate for urban riding. Q: Does the Aprilia Storm 125 come with modern features? A: It gets a semi-digital console and basic features, but it lacks advanced connectivity or smart features seen in some rivals. Q: Is the Aprilia Storm 125 suitable for beginners? A: Yes, it is easy to ride with automatic transmission and predictable performance, making it beginner-friendly. | 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: What is the fuel tank capacity of KTM 50 SX? A: The fuel tank capacity is 2.3 litres. Q: What is the seat height of KTM 50 SX? A: The seat height is 653 mm. Q: What is the weight of KTM 50 SX? 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 KTM 50 SX 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 KTM 50 SX 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 of KTM 50 SX? 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 in KTM 50 SX? A: Some owners report carburetor tuning issues |
| Fuel System | Petrol, fuel‑injected | — |
| Price Variants | STD | 107196 | STD | 475000 |
| Pros | The Storm 125 has nimble and agile handling, making it easy to weave through city traffic and park in tight spaces. Its sporty and aggressive design stands out, giving it a premium, performance-oriented look compared with regular scooters. The engine delivers smooth, usable performance, with enough punch for urban commuting and occasional highway bursts. Front disc and rear drum brakes with CBS provide reliable stopping power and enhance rider confidence. Automatic CVT transmission makes it very easy to ride in stop-and-go traffic without the hassle of manual gear changes. LED lighting and combined analogue-digital cluster improve visibility and modernize the riding experience. Lightweight (118 kg) and compact dimensions make the scooter easy to maneuver, even for newer riders. | 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. |
| Starter | Kick + Electric self‑start | Kick Start Only |
| Transmission | Automatic | Manual |
