Quick Analysis
KTM 50 SX
9.5 pts
Unweighted: 4 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
TRIUMPH SCRAMBLER 400 X
27.5 pts
Unweighted: 19 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | — | Liquid-cooled |
| Displacement | 49.9 cc | 398.15 cc |
| Engine Type | 1-cylinder, 2-stroke engine | 4 valve, DOHC, single-cylinder |
| Power | 5.3 bhp @ 11500 rpm | 40 PS / 39.5 bhp (29.4 kW) @ 8,000 rpm |
| Torque | 5.2 Nm @ 7500 rpm | 37.5 Nm @ 6,500 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 2.3 L | 13 l |
| Mileage | 30 kmpl | 27 kmpl |
Dimensions & Weight |
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| Kerb Weight | 41 kg | 185 kg |
| Seat Height | 653 mm | 835 mm |
Brakes & Suspension |
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| ABS | — | Switchable ABS |
| Front Brake | Disc 160 mm | 320mm fixed disc, four-piston radial caliper, ABS |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | 43mm upside down Big Piston forks. 150mm wheel travel |
| Rear Brake | Disc 160 mm | 230mm fixed disc, ByBreTM single piston floating caliper, ABS |
| Rear Suspension | XACT WP mono shock | Gas monoshock RSU with external reservoir and pre-load adjustment. 150mm wheel travel |
Tyres & Wheels |
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| Front Tyre | 60/100 - 12 | 100/90-19 |
| Rear Tyre | 2.75 - 10 | 140/80-17 |
| Tyre Type | Tubed | Tubeless |
| Wheel Type | Spoke | Alloy |
Features & Technology |
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| Headlight | — | DRLs LED |
Other Specifications |
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| Bike Image 1 | — | https://motoautiv.com/wp-content/uploads/2025/10/Screenshot-2025-10-27-115646.webp |
| Bike Image 2 | — | https://motoautiv.com/wp-content/uploads/2025/10/Screenshot-2025-10-27-115631.webp |
| Bike Image 3 | — | https://motoautiv.com/wp-content/uploads/2025/10/Screenshot-2025-10-27-115616.webp |
| Color Options | Electronic Orange | Matt Khaki Green / Fusion White Carnival Red/ Phantom Black Phantom Black/ Silver Ice Pearl Metallic White / Phantom Black |
| 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. | Tall seat & heavier stance: Seat height is about 835 mm and kerb weight around ~185 kg, which may be challenging for shorter riders or in tight urban traffic. Feature omissions & cost premium: Some expected features missing (e.g., connected tech, riding modes, adjustable levers) and the price/service costs are higher than many in the 400cc class. Vibrations and urban compromise: Some users report noticeable vibration at higher RPMs, and in heavy traffic the tall stance may be less comfortable. Practical limitations: The split rear seat is compact; tyres/brakes designed for dual-terrain but may trade off slightly on pure street use; service network/maintenance costs may be higher for premium brand. |
| 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 Triumph Scrambler 400 X represents a bold entry in the mid-size adventure-scrambler segment, combining British craftsmanship with rugged, go-anywhere capability. Built under the Triumph-Bajaj partnership, the Scrambler 400 X is designed to bring Triumph’s legendary scrambler DNA to a wider audience — offering classic styling, off-road practicality, and refined performance in a lightweight, accessible package. At first glance, the Scrambler 400 X captures attention with its authentic scrambler design — high-mounted exhaust finishers, wire-spoke wheels, a muscular fuel tank, sump guard, hand guards, and long-travel suspension. It carries a sense of adventure and heritage that closely resembles its larger siblings, the Scrambler 900 and 1200. The bike’s upright stance, high ground clearance, and purposeful proportions instantly set it apart from roadsters and commuters in its class. Powering the Scrambler 400 X is a 398 cc, liquid-cooled, single-cylinder engine from Triumph’s new TR-series platform. This engine produces 39.5 bhp at 8,000 rpm and 37.5 Nm of torque at 6,500 rpm, paired with a 6-speed gearbox and slip-and-assist clutch. The performance is refined, tractable, and full of character — making it ideal for both city rides and adventurous weekend escapes. The power delivery is smooth and linear, and the engine’s mid-range torque ensures effortless overtakes, even on steep terrain or highways. In terms of riding dynamics, the Scrambler 400 X truly shines. It features longer suspension travel (150 mm at both ends), 19-inch front and 17-inch rear wire-spoke wheels, and dual-purpose tyres for better control on rough terrain. The seat height of 835 mm gives riders a commanding view of the road, while the wide handlebar and neutral ergonomics make it comfortable for long rides. Though slightly tall and heavier at around 185 kg, the weight distribution is balanced, making it stable both on-road and off-road. The bike’s ride quality is among the best in its class. The suspension soaks up bumps and potholes effectively, providing confidence over broken Indian roads. Braking performance is handled by disc brakes at both ends with dual-channel ABS, which can be switched off for the rear wheel during off-road use. The ride-by-wire throttle, switchable traction control, and off-road ABS mode make the Scrambler 400 X a technologically advanced machine without overwhelming new riders. Feature-wise, Triumph offers a premium package: LED headlight, tail-light and indicators, a semi-digital instrument cluster with gear position indicator, USB-C charging port, and high-quality switchgear. Every component feels well-built, reflecting Triumph’s attention to detail and quality. In terms of performance, the Scrambler 400 X delivers real-world mileage of 27 km/l, a top speed of around 150 km/h, and strong mid-range performance for highway cruising. While the tall seat height and kerb weight might be challenging for shorter riders, taller riders will find it perfectly balanced for both urban commuting and trail riding. Priced at around ₹2.84–2.94 lakh (ex-showroom), the Triumph Scrambler 400 X may not be the most affordable option in its class, but it offers unmatched premium feel, solid build quality, and versatility. It’s ideal for riders seeking a stylish motorcycle that can handle daily rides, weekend tours, and light off-road adventures with ease. In summary, the Triumph Scrambler 400 X is a near-perfect blend of heritage design, refined performance, and practical versatility — a motorcycle that not only looks timeless but also performs with modern precision. |
| 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 the Triumph Scrambler 400 X? A: The Scrambler 400 X is powered by a 398 cc, liquid-cooled, single-cylinder engine. Q: How much power does the Scrambler 400 X produce? A: It delivers 39.5 bhp at 8,000 rpm and 37.5 Nm of torque at 6,500 rpm. Q: What is the mileage of the Triumph Scrambler 400 X? A: The Scrambler 400 X offers a real-world mileage of around 27 km/l. Q: Is the Scrambler 400 X suitable for off-road riding? A: Yes, it’s designed for light off-road use with long-travel suspension, dual-purpose tyres, and switchable ABS. Q: What is the seat height of the Scrambler 400 X? A: The seat height is 835 mm, offering a tall and commanding riding position. Q: Does the Triumph Scrambler 400 X have traction control? A: Yes, it comes with switchable traction control and ride-by-wire technology for enhanced safety and control. Q: What is the top speed of the Triumph Scrambler 400 X? A: The Scrambler 400 X can reach a top speed of approximately 150 km/h. Q: What is the price of the Triumph Scrambler 400 X in India? A: The ex-showroom price ranges between ₹2,67,731, depending on the city and variant. |
| Price Variants | | 475000 | SCRAMBLER 400 X | 267731 |
| 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. | Strong off-road-ready hardware: It has a 19″ front / 17″ rear wheel setup, long suspension travel (~150 mm front & rear) and gets features like knuckle guards, headlight grille, sump guard — true to its scrambler DNA. Refined, torque-rich engine: The 398 cc single-cylinder engine delivers around 39.5 bhp / 37.5 Nm, with good low-end pull and smooth delivery for both city and trail use. Premium build & features: High quality finish, ride-by-wire throttle, switchable traction control, dual-channel (switchable) ABS, split seat and modern instrumentation. Versatility: Works well as a street bike with scrambler/dual-terrain capabilities thanks to the chassis/suspension set-up. Reviewers say it “still a hoot to ride despite taller stance”. |
| Transmission | Manual | 6 Speed Manual |
