Quick Analysis
KTM 50 SX
12.0 pts
Unweighted: 7 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
SUZUKI Avenis
20.0 pts
Unweighted: 16 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Displacement | 49.9 cc | 124 cm³ |
| Engine Type | 1-cylinder, 2-stroke engine | 4- Stroke, 1-Cylinder, Air Cooled |
| Power | 5.3 bhp @ 11500 rpm | 8.7 ps @ 6750 rpm |
| Torque | 5.2 Nm @ 7500 rpm | 10 Nm @ 5500 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 2.3 L | 5.2 L |
| Mileage | 30 kmpl | 49.6 kmpl |
Dimensions & Weight |
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| Kerb Weight | 41 kg | 106 kg |
| Seat Height | 653 mm | 780 mm |
Brakes & Suspension |
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| Front Brake | Disc 160 mm | Disc Front Brake Size - Caliper - Front 1 Piston |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | Telescopic |
| Rear Brake | Disc 160 mm | Drum |
| Rear Suspension | XACT WP mono shock | Swing Arm |
Tyres & Wheels |
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| Front Tyre | 60/100 - 12 | 90/90 - 12 |
| Rear Tyre | 2.75 - 10 | 90/100 – 10 |
| Tyre Type | Tubed | Tubeless |
| Wheel Type | Spoke | Alloy |
Features & Technology |
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| Headlight | — | LED |
Other Specifications |
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| Battery | — | Maintenance Free 12V, 4Ah |
| Bike Image 1 | — | https://motoautiv.com/wp-content/uploads/2025/11/avenis125championyellowno2glossysparkleblack.webp |
| Bike Image 2 | — | https://motoautiv.com/wp-content/uploads/2025/11/avenis125metallicmatblackandmetallicmattitaniumsilver.webp |
| Bike Image 3 | — | https://motoautiv.com/wp-content/uploads/2025/11/avenis125metallicmatteplatinumsilverandglasssparkleblack.webp |
| Bike Image 4 | — | https://motoautiv.com/wp-content/uploads/2025/11/avenis125glossysparkleblack.webp |
| Bike Image 5 | — | https://motoautiv.com/wp-content/uploads/2025/11/avenis125glossysparkleblackpearlmirared.webp |
| Color Options | Electronic Orange | Metallic Matte Platinum Silver and Glass Sparkle Black Glossy Sparkle Black Champion Yellow No 2 Glossy Sparkle Black Glossy Sparkle Black Pearl Glacier White Glossy Sparkle Black Pearl Mira Red |
| Cons | 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. | Modest engine power — not ideal for high-speed highway rides or aggressive acceleration. Suspension and ride feel can show their limits on rough or poorly maintained roads. Braking and overall hardware are basic — fine for city speeds but not for aggressive riding. Storage space and long-ride comfort are limited compared with larger scooters or bikes. Less suitable for long-distance travel, heavy loads or frequent rough-road usage. |
| Detailed Overview | 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. | When you swing your leg over the Avenis and give it a twist, it’s immediately clear this isn’t a heavy-duty monster but a clever, city-smart scooter that feels sprightly and easy. The heart of it is a 124 cc, single-cylinder, air-cooled engine built by Suzuki. That might not sound like much compared to a full-size motorcycle, but for the kind of riding most of us do — weaving through traffic, darting between lanes, quick errands or short weekday commutes — it’s just about right. The engine puts out ~8.7 PS of power and around 10 Nm of torque, which translates to crisp, responsive throttle behavior. In practice, that means you get enough grunt to merge smoothly into traffic, nip through crowded streets, or cruise comfortably at moderate speeds. The Avenis doesn’t ask you to wrestle with clutch or shifting — it uses a CVT transmission, keeping acceleration linear and clutchless. That makes it ideal if your day involves lots of stop-and-go: you just twist and go. Kick-start and electric-start both come onboard, so you’ve got backup if battery is down — nice convenience for daily use. The combination of fuel-injection and efficient engine tuning also gives it a decent balance between performance and frugality, so you rarely feel like you’re abusing the engine. Ride-wise, the Avenis is compact and light. It weighs about 106 kg and has a seat height of roughly 780 mm, which makes mounting and stopping easy — even for shorter riders. The overall dimensions aren’t imposing, so manoeuvring in tight city gaps or parking in crowded streets doesn’t feel like a wrestling match. At the same time, the scooter carries enough solidity; it doesn’t feel fragile or flimsy on bumpy roads. The suspension — telescopic front fork and a swing-arm rear — is basic but adequate for what this scooter is meant to do: mostly city roads, potholes, small bumps, and occasional rough patches. It doesn’t deliver sport-bike stiffness or plush-tourer smoothness, but for urban commuting it provides a stable, predictable ride, absorbing the typical undulations of Indian streets without transmitting every tiny jerk. Stopping and control feel confident too: there’s a front disc brake, and rear-wheel braking via a drum, backed by a combined braking system (CBS). For a scooter of this class, this setup gives you a good margin of safety in city traffic — sudden braking or quick stops don’t feel scary, and you don’t need a sudden panic-response even in unpredictable traffic conditions. For daily practicality, the Avenis hits many right notes. The fuel tank is modest — about 5.2 litres — which matches its urban-use orientation. But given its efficiency and weight, that is enough for city commuting or short inter-city hops without frequent stops. The small fuel tank also helps keep overall weight down, which again helps in tight city riding. Features punch above what you’d expect from a basic commuter scooter. LED head-lamp up front gives a sharp, crisp beam — useful for night riding or dimly lit roads. In higher trims, there’s a digital instrument console that adds a modern touch and gives you clear, easy-to-read info. There are convenience touches like a wide floorboard (easy for placing feet or even small bags), an external fuel-cap hinge for easy refueling, and even practical storage options — ideal for daily errands or short trips. All this makes the Avenis feel like a well-rounded urban companion: light enough for traffic, easy to ride, efficient enough for everyday commuting, and feature-rich enough to feel modern and practical. It doesn’t pretend to be a highway-cruiser or a touring beast — it doesn’t have huge power or a massive fuel tank — but that’s not its aim. Its aim is to be a smart, nimble, fuss-free ride for city and suburban life. Of course, what you give up for this convenience is also clear. Because the engine is small and the power modest, you won’t enjoy high-speed overtaking bursts or highway thrills. It’s not built for long highway rides with heavy pillions or luggage. Similarly, the basic suspension and drum rear brake mean that comfort and braking feel are appropriate for city speeds — push it hard on rough roads and you’ll feel the limitations. The fuel tank doesn’t offer long-distance range; you’ll be stopping often if you head out beyond city limits. In simple terms: the Avenis isn’t a “go-anywhere-do-anything” scooter. It knows what it is — a smart, efficient, easy-to-live-with two-wheeler for city life. If you live in a busy town or city, commute daily, don’t need racing-bike speed, and value ease, low maintenance and convenience — it makes a lot of sense. It’s the sort of ride that feels natural, unobtrusive, and reliably useful every single day. |
| Expert Review | MotoAutiv Team | MotoAutiv Team |
| FAQ (Manual Override) | 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 | Q: What is the engine capacity of Avenis 125? A: The Avenis 125 has a 124 cc, air-cooled, single-cylinder engine. Q: What kind of transmission does it use? A: It uses a continuously variable transmission (CVT), so there’s no manual gear shifting — you just twist the throttle and go. Q: What power and torque does Avenis 125 produce? A: It produces modest but usable power and torque — enough for smooth city riding, lane-splitting, and short commutes. Q: What kind of brakes and wheels does it have? A: It comes with a front disc brake and a rear drum brake, along with alloy wheels — a setup that balances stopping performance with everyday practicality. Q: What is the fuel tank capacity and how fuel-efficient is it typically? A: The fuel tank is relatively small — suitable for city commuting rather than long tours — and the scooter delivers good fuel efficiency, making it economical for daily use. Q: What is the kerb weight and seat height? Is it manageable for most riders? A: The scooter is lightweight and has a moderate seat height, which makes mounting, stopping, and maneuvering easy for most riders, including those of average or slightly shorter height. Q: What type of suspension does it have and what does that mean for ride comfort? A: It uses a simple front fork and a rear swing-arm suspension, which is adequate for typical city roads — potholes, speed-breakers and regular urban bumps — giving a comfortable, predictable ride under everyday conditions. Q: What kind of speed can one expect from Avenis 125? A: It’s tuned more for city traffic and smooth urban commuting than for sports-bike performance — you can expect enough speed for everyday needs, overtakes and short highway stretches, but it won’t deliver highway-cruiser top speeds or high-speed thrills. Q: What convenience and comfort features does it offer for daily riders? A: The Avenis comes with a modern instrument console, efficient lighting, ample under-seat or built-in storage, and ergonomics suited to everyday commuting — all adding to its practicality and ease of use in urban conditions. |
| Fuel System | — | Fuel Injection |
| Price Variants | | 475000 | Avenis | 85441 Standard | 83793 Special | 86177 |
| Pros | 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. | Smart, modern look that stands out in city traffic. Light and easy to handle — good for weaving through traffic or parking in tight spots. Fuel efficient and affordable to run — nice for daily commuting and errands. Comfortable and practical for everyday city use — decent seat, manageable ride quality, and enough convenience for routine trips. Offers features that feel modern and useful for urban riders (good lighting, neat controls, convenient usability). |
| Transmission | Manual | CVT |
