Quick Analysis
KTM 50 SX
10.0 pts
Unweighted: 4 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
TRIUMPH BONNEVILLE BOBBER
27.0 pts
Unweighted: 18 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | — | Liquid cooled |
| Displacement | 49.9 cc | 1200 cc |
| Engine Type | 1-cylinder, 2-stroke engine | 8 valve, SOHC, 270° crank angle parallel twin |
| Power | 5.3 bhp @ 11500 rpm | 78 PS / 76.9 bhp (57.5 kW) @ 6100 rpm |
| Torque | 5.2 Nm @ 7500 rpm | 106 Nm @ 4000 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 2.3 L | 12 L |
| Mileage | 30 kmpl | 21.7 kmpl |
Dimensions & Weight |
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| Kerb Weight | 41 kg | 251 kg |
| Seat Height | 653 mm | 690 - 700 mm |
Brakes & Suspension |
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| ABS | — | Dual Channel ABS |
| Front Brake | Disc 160 mm | Twin Ø310mm disc, Brembo 2-piston sliding axial calipers, ABS |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | Ø 47 mm Showa cartridge forks |
| Rear Brake | Disc 160 mm | Single Ø255mm disc, Nissin single piston sliding axial caliper, ABS |
| Rear Suspension | XACT WP mono shock | Mono-shock RSU with linkage |
Tyres & Wheels |
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| Front Tyre | 60/100 - 12 | MT 90 B16 |
| Rear Tyre | 2.75 - 10 | 150/80 R16 |
| 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/2025/11/bonneville-bobber_my25_icon-edition_rhs_629px.webp |
| Bike Image 2 | — | https://motoautiv.com/wp-content/uploads/2025/11/bonneville_bobber_my24_jet_black_ash_gray_rhs_629px.webp |
| Bike Image 3 | — | https://motoautiv.com/wp-content/uploads/2025/11/bonnevillebobberjetblack.webp |
| Color Options | Electronic Orange | Matt Graphite / Matt Baja Orange Sapphire Black Aluminium Silver Jet Black Jet Black / Ash Gray |
| 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. | Limited ground clearance and suspension travel: The low clearance and modest suspension travel mean rough roads or poorly surfaced terrain can be problematic. Heavier and less nimble in traffic: The weight and the structural design make it more challenging in tight urban riding or slow-speed manoeuvres. Single-seat or limited pillion comfort: Many reviews point out the one-seat look (or minimal provision for a pillion) reduces practical usability for two-up riding. Premium cost and maintenance: As a high-end motorcycle, purchase cost, servicing and parts may be higher compared to more mass-market bikes. |
| 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 Bonneville Bobber** is one of the most iconic and characterful motorcycles in Triumph’s modern classic lineup, embodying pure craftsmanship, timeless design, and a perfect balance of power and style. Built around the heart of Triumph’s celebrated Bonneville range, the Bobber takes inspiration from post-war custom motorcycles with a minimalist aesthetic and a hardtail-style rear frame that delivers both vintage appeal and a raw, muscular stance. It is powered by a 1200cc liquid-cooled, parallel-twin, SOHC engine that produces 78 PS of peak power at 6,100 rpm and 106 Nm of torque at 4,000 rpm, offering a strong mid-range punch and a thrilling riding experience. The torque-rich engine is tuned specifically for the Bobber, providing smooth throttle response and deep exhaust notes that emphasize the motorcycle’s rebellious attitude. The Bonneville Bobber’s design language speaks directly to purists and enthusiasts who appreciate old-school craftsmanship blended with modern engineering. It features clean lines, a floating single seat, classic spoked wheels, wide flat handlebars, and minimal bodywork that gives it an unmistakable silhouette. Every detail, from the brushed aluminum covers to the blacked-out components and stylish fuel tank, adds to its authentic character. The seat height is kept extremely low at around 690 mm, making it accessible to a wide range of riders, while the ergonomics are designed for relaxed cruising with an aggressive edge. Triumph has also equipped the Bobber with modern technology like ride-by-wire throttle, two riding modes (Rain and Road), switchable traction control, and dual-channel ABS for enhanced safety and performance on all road conditions. On the suspension front, the Bobber uses a 47 mm Showa cartridge fork at the front and a hidden mono-shock at the rear, maintaining the classic “hardtail” appearance while ensuring a comfortable ride. Braking duties are handled by twin 310 mm discs with Brembo calipers at the front and a single 255 mm disc at the rear, offering strong and confident stopping power. The bike runs on 16-inch wire-spoked wheels with Avon Cobra tyres, giving it superior grip and stability. Although its 251 kg wet weight might seem hefty, the Bobber feels well-balanced and manageable even at lower speeds. The single-seat design, while enhancing the visual purity, limits practicality for pillion rides, making this motorcycle best suited for solo adventurers who value style and individuality. In terms of comfort and everyday usability, the Triumph Bonneville Bobber offers a surprisingly refined and relaxed ride for a motorcycle with such bold character. The clutch action is light, the gearbox is slick, and the torque delivery is smooth — all of which contribute to a confident and enjoyable experience both in the city and on open highways. The 12-liter fuel tank may not offer long touring range, but it suits the Bobber’s lifestyle-focused image. Overall, the Bonneville Bobber stands out as a masterpiece of modern engineering with classic soul — perfect for riders seeking a premium, head-turning motorcycle that combines vintage aesthetics, modern technology, and authentic British performance in a single, timeless package. |
| 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 engine does the Bonneville Bobber have? A: It is powered by a 1,200 cc liquid-cooled, 8-valve SOHC parallel-twin engine with a 270° crank, producing around 78 PS at 6,100 rpm and 106 Nm of torque at 4,000 rpm. Q: What is the seat height and wet weight of the Bobber? A: The seat height is approximately 690-700 mm and the wet weight is around 251 kg. Q: What is the fuel tank capacity and expected mileage of the Bobber? A: The fuel tank capacity is 12 litres. Real-world mileage may vary, but official consumption is around 4.5 L/100 km (~60.9 mpg) in test conditions. Q: What rider aids and features does the Bonneville Bobber include? A: It features ride-by-wire throttle, two riding modes (Road & Rain), switchable traction control, dual-channel ABS, LED lighting and a single analogue/digital instrument display. Q: What type of wheels and front suspension does the Bobber use? A: It uses 16-inch wire-spoke wheels (16×2.5” front, 16×3.5” rear) and a 47 mm Showa cartridge front fork. Q: What is the ex-showroom price of the Bobber in India? A: The price starts from around ₹ 13,37,500 in India for the latest variant. Q: Is the Bonneville Bobber suitable for commuting and city rides? A: Yes — its low seat height (≈ 690 mm) and retro cruiser styling make it accessible, although its weight and single-seat bobber layout may make heavy-traffic manoeuvres slightly more demanding. Q: How often does the Bobber need servicing? A: The service interval is every 10,000 miles (≈ 16,000 km) or 12 months, whichever comes first. |
| Price Variants | | 475000 | Standard |13,37,500 |
| 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. | Stunning retro-bobber styling: The design is widely praised for its authentic custom look, with minimalist lines, a single seat, low profile and classic finishes. Low seat height making it accessible: Many users note the low seat height helps shorter riders get their feet down. Strong mid-range torque and fun power delivery: The 1,200 cc engine delivers a satisfying amount of torque and gives a characterful ride, especially appreciated in reviews. Good value as a premium classic: Owners mention the build quality, styling and presence give a “premium” feel that stands out in the modern class. |
| Transmission | Manual | 6-speed |
