Quick Analysis
KTM 50 SX
3.5 pts
Unweighted: 2 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
KTM 250 DUKE
33.5 pts
Unweighted: 25 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | — | Liquid cooling with radiator |
| Displacement | 49.9 cc | 249.07 cc |
| Engine Type | 1-cylinder, 2-stroke engine | Single Cylinder, Liquid Cooled, FI Engine |
| Power | 5.3 bhp @ 11500 rpm | 22.8 kW @ 9250 rpm |
| Torque | 5.2 Nm @ 7500 rpm | 25 Nm @ 7250 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 2.3 L | 15 L |
| Mileage | 30 kmpl | 30.08 kmpl |
Dimensions & Weight |
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| Kerb Weight | 41 kg | 162.8 |
| Seat Height | 653 mm | 800 |
Brakes & Suspension |
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| ABS | — | Supermoto ABS |
| Front Brake | Disc 160 mm | 320 mm Disc with Radially mounted calliper |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | WP APEX USD forks, 43mm diameter |
| Rear Brake | Disc 160 mm | 240 mm Disc with Floating calliper |
| Rear Suspension | XACT WP mono shock | WP APEX Monoshock, 10-step preload adjustable |
Tyres & Wheels |
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| Front Tyre | 60/100 - 12 | 110/70 - R17 |
| Rear Tyre | 2.75 - 10 | 150/60 - R17 |
| Tyre Type | Tubed | Tubeless |
| Wheel Type | Spoke | Alloy |
Features & Technology |
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| Headlight | — | Full Split LED Headlamp |
Other Specifications |
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| Battery | — | 12 V, 8 AH MF battery |
| Bike Image 1 | — | https://motoautiv.com/wp-content/uploads/2025/11/250duke-blue.webp |
| Bike Image 2 | — | https://motoautiv.com/wp-content/uploads/2025/11/250duke-ebony-black.webp |
| Bike Image 3 | — | https://motoautiv.com/wp-content/uploads/2025/12/Metallic-Silver.avif |
| Cluster | — | 5" LCD display |
| Color Options | Electronic Orange | Ebony Black | #0A0A0A Electronic Orange | #FF5A00 Atlantic Blue | #1F3F8B Metallic Silver | #8A8F98 |
| 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. | Firm seat may not be comfortable on very long rides Mileage could be better compared to 200cc rivals Slightly aggressive riding posture not ideal for everyone High service & maintenance cost compared to non-premium 250cc bikes Engine can feel a bit vibey at higher RPMs |
| 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. | The KTM 250 Duke has built a reputation as one of the most exciting quarter-liter motorcycles in India, and the latest version takes this legacy even further. Known for its aggressive styling, powerful engine, and premium components, the 250 Duke continues to stand tall as a motorcycle that combines performance and practicality in a way very few bikes in its segment manage to do. At the heart of the KTM 250 Duke is a 248.8cc single-cylinder, liquid-cooled engine, delivering strong power with quick throttle response. The mid-range punch is especially impressive, making it ideal for overtaking, quick city rides, and even some spirited highway runs. Whether you’re accelerating out of traffic or enjoying weekend rides, the bike never feels underpowered. The 6-speed transmission paired with a slipper clutch ensures smoother gear shifts and reduces rear-wheel hopping during aggressive downshifts — a feature that adds both performance and safety. One of the standout aspects of the KTM 250 Duke is its dynamic handling. The lightweight trellis frame, paired with WP Apex suspension, offers sharp, confidence-inspiring control in corners. It feels planted at high speeds and agile in tight city streets. Braking performance is equally impressive, thanks to the front and rear disc brakes with dual-channel ABS, offering reliable stopping power even in unexpected situations. In terms of design, the 250 Duke looks every bit like a modern streetfighter. The aggressive styling, angular lines, muscular tank, and bright paint schemes give it a premium and attention-grabbing appearance. KTM has always been known for offering bold designs, and the 250 Duke stays true to that identity. The LED headlamp setup (in newer variants) not only enhances night visibility but also adds to the overall visual appeal. The bike also gets a fully digital LCD console with essential information like gear position, fuel range, average mileage, and more. It’s not as advanced as the TFT unit found on the 390 Duke, but still offers plenty of useful features for daily commuting and touring. However, the KTM 250 Duke isn’t without its shortcomings. The seat is on the firmer side, which may lead to discomfort on longer journeys. Also, the riding posture is slightly sporty, which might take time to get used to, especially for beginners. The mileage, which hovers around 30–35 kmpl, is decent but not the best in the segment. Maintenance costs are also slightly higher due to premium components — something buyers should keep in mind. Despite these minor drawbacks, the KTM 250 Duke remains one of the best 250cc performance bikes in India, offering a near-perfect mix of power, agility, design, and modern features. Whether you’re a college rider looking for a stylish machine or an enthusiast seeking an exciting city performer, the 250 Duke continues to be a compelling choice. |
| Expert Review | MotoAutiv Team | The KTM 250 Duke stands out as a strong option for riders who want a mix of performance and everyday usability without going overboard. It carries the same sharp and aggressive design that KTM is known for, which gives it a sporty road presence even when standing still. The engine feels smooth and refined for a single-cylinder setup, and it has enough power to make city rides fun while still being comfortable on highways. One of its biggest strengths is the way it handles, light, quick to respond, and easy to control, especially in traffic. The suspension setup leans slightly towards the firmer side, which helps in corners but can feel a bit stiff on rough roads. Braking is confident and predictable, adding to the overall sense of control. The riding position is sporty but not too demanding, so it works well for daily use. While it may not feel as exciting as bigger KTMs, it strikes a good balance between performance, efficiency, and practicality, making it a sensible choice for riders upgrading from smaller bikes or looking for something engaging yet manageable., 4.5, 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 the KTM 250 Duke? A: The KTM 250 Duke is powered by a 248.8cc, single-cylinder, liquid-cooled engine. Q: What is the mileage of the KTM 250 Duke? A: The KTM 250 Duke delivers a mileage of around 30–35 kmpl, depending on riding style and conditions. Q: What is the top speed of the KTM 250 Duke? A: The top speed of the KTM 250 Duke is approximately 142 km/h. Q: Does the KTM 250 Duke come with riding modes? A: No, the KTM 250 Duke does not offer riding modes; however, it does come with advanced features like ABS, LCD display, and slipper clutch. Q: Is the KTM 250 Duke suitable for long rides? A: Yes, the 250 Duke can handle long rides due to its refined engine and strong mid-range, but some riders may find the seat slightly firm for extended touring. Q: What type of brakes does the KTM 250 Duke have? A: The bike features disc brakes on both ends with dual-channel ABS for enhanced safety. Q: What is the seat height of the KTM 250 Duke? A: The seat height is approximately 823 mm, making it accessible for most riders. Q: What are the available colours in the KTM 250 Duke? A: KTM usually offers the 250 Duke in multiple sporty colours, commonly Orange and Black, but availability may vary by year and region. Q: Is the KTM 250 Duke good for beginners? A: Yes, it is suitable for beginners who want a powerful yet manageable motorcycle, though its aggressive power delivery may require some experience. Q: What is the price of the KTM 250 Duke? A: The price typically ranges between ₹2.30 lakh–₹2.50 lakh (ex-showroom), depending on city and variant. |
| Fuel System | — | Electronic Fuel Injection |
| Price Variants | | 475000 | Standard | 217401 |
| 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. | Powerful 250cc Engine with strong mid-range performance Sharp, aggressive design inspired by larger Dukes Excellent handling thanks to WP suspension and lightweight chassis High-quality components like slipper clutch, dual-channel ABS Sporty riding dynamics ideal for spirited riding Feature-rich LCD display with modern readouts Impressive braking performance with strong bite Good for city & occasional highway rides |
| Starter | — | Self Start Only |
| Transmission | Manual | 6 Speed Manual |
