Quick Analysis
KTM 50 SX
9.5 pts
Unweighted: 4 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
TRIUMPH BONNEVILLE T120 BLACK
26.5 pts
Unweighted: 17 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 | SOHC, 270° crank angle parallel twin |
| Power | 5.3 bhp @ 11500 rpm | 80 PS / 78.9 bhp (58.8 kW) @ 6550 rpm |
| Torque | 5.2 Nm @ 7500 rpm | 105 Nm @ 3500 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 2.3 L | 14.5 L |
| Mileage | 30 kmpl | 21 kmpl |
Dimensions & Weight |
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| Kerb Weight | 41 kg | 236 kg |
| Seat Height | 653 mm | 790 mm |
Brakes & Suspension |
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| ABS | — | Dual channel |
| Front Brake | Disc 160 mm | Twin 310mm discs, Brembo 2 piston floating caliper, ABS |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | Ø41mm cartridge forks |
| Rear Brake | Disc 160 mm | Single 255mm disc, Nissin 2 piston floating caliper, ABS |
| Rear Suspension | XACT WP mono shock | Twin RSU’s, with pre-load adjustment |
Tyres & Wheels |
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| Front Tyre | 60/100 - 12 | 100/90-18 |
| Rear Tyre | 2.75 - 10 | 150/70 R17 |
| 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_t120_black_my25_graphite_rhs_629px.webp |
| Color Options | Electronic Orange | Jet Black Graphite / Matt Graphite |
| 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. | Weight and low-speed handling: The T120 is comparatively heavy and some riders find it less nimble in slow manoeuvres or tight traffic. Engine heat and comfort concerns in traffic: In stop-and-go city conditions, the engine and radiator heat can become noticeable and reduce comfort. Not a high-end sport performer: While competent, it lacks the aggressive performance or sport-bike handling of more focused machines, which may disappoint those seeking sharp cornering thrills. Premium cost and ownership aspects: As a premium modern-classic, it comes with higher pricing and possibly higher maintenance/spare costs compared to more mainstream 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 T120 Black** is the darker, more sophisticated sibling of the classic Bonneville T120, combining retro British charm with modern performance and technology. It stands out as one of the most elegant motorcycles in Triumph’s Modern Classics lineup, appealing to riders who love timeless design but demand refined power, comfort, and reliability. As the name suggests, the T120 Black takes the iconic Bonneville silhouette and gives it a bold, stealthy personality with blacked-out finishes on the engine, exhaust, wheels, and mirrors, creating a striking visual statement that blends vintage heritage with modern attitude. At the heart of the T120 Black lies a **1,200cc liquid-cooled, 8-valve, parallel-twin engine** producing **80 PS at 6,550 rpm and 105 Nm of torque at 3,500 rpm**. This high-torque motor is designed for effortless power delivery, offering smooth acceleration and excellent mid-range performance. The 270-degree crank ensures a distinctive exhaust note and balanced feel, making every ride engaging yet relaxing. The five-speed gearbox is tuned for smooth shifts, and Triumph’s **ride-by-wire throttle system** ensures precise control across different riding conditions. The T120 Black feels at home both cruising on highways and navigating through urban traffic, offering a refined blend of power and composure that’s typical of Triumph engineering. In terms of design, the T120 Black is pure classic artistry. It retains the signature Bonneville styling — a sculpted fuel tank with knee pads, twin-pod analogue instruments, round LED headlamp, and wire-spoked wheels — but replaces all bright chrome elements with deep black finishes. This minimalistic yet bold design gives the motorcycle a premium, understated look that appeals to riders who prefer elegance over flash. The attention to detail is impeccable, from the brushed aluminum side panels to the stitched seat and neatly integrated modern components that don’t compromise the classic appeal. Modern technology seamlessly integrates into this classic framework. The T120 Black comes equipped with **dual riding modes (Rain and Road)**, **switchable traction control**, **dual-channel ABS**, **cruise control**, and **LED lighting**, offering a perfect balance between safety and sophistication. These features make the bike not just a nostalgic throwback but also a practical, capable modern-day roadster. The **twin-pod instrument cluster** maintains a vintage feel while providing useful digital readouts like fuel range, gear position, and trip details. Comfort and ride quality are standout aspects of the T120 Black. With a **low 790mm seat height**, a neutral riding position, and wide handlebars, it accommodates a wide range of riders comfortably. The **41mm front forks and twin rear shock absorbers** are tuned for balanced comfort and control, absorbing bumps effectively while maintaining composure on uneven roads. The lighter wheels improve agility, and the **Brembo front brakes** offer confident stopping power. Overall, the **Triumph Bonneville T120 Black** is a motorcycle that beautifully bridges the gap between past and present. It’s not about aggressive speed or sharp cornering — it’s about enjoying the pure, soulful experience of motorcycling with elegance and poise. It’s ideal for riders who appreciate craftsmanship, smooth performance, and timeless design. With its premium build, torquey engine, and modern features wrapped in classic style, the T120 Black remains one of the most desirable modern classics on the road today. |
| 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 specification of the Bonneville T120 Black? A: It features a 1,200 cc liquid-cooled, 8-valve, parallel-twin engine with a 270° crank, delivering around 80 PS at 6,550 rpm and 105 Nm of torque at 3,500 rpm. Q: What is the seat height and wet weight of the T120 Black? A: The seat height is approximately 790 mm and the wet weight is around 236 kg. Q: What is the fuel tank capacity and expected mileage of the T120 Black? A: The tank capacity is 14.5 litres, and official fuel consumption is listed as about 4.7 L/100km (~21 km/l) though real-world mileage may vary. Q: What features and rider aids are included on the T120 Black? A: Key features include LED lighting, twin-pod analogue instruments with LCD display, ride-by-wire throttle, switchable traction control, ABS, two riding modes (Road & Rain), and cruise control. Q: What is the ex-showroom price of the T120 Black in India (recent model)? A: The 2023 edition of the T120 Black has a starting ex-showroom price of approximately ₹ 11.09 lakh for the Jet Black colour, and about ₹ 11.39 lakh for the Sapphire Black/Matt Sapphire Black variant. Q: What wheels and suspension does the T120 Black come with? A: The bike uses 18″ front and 17″ rear wire-spoked wheels. Suspension is 41 mm cartridge front forks and twin RSU rear shocks with preload adjustment. Brakes include twin 310 mm front discs (with Brembo 2-piston floating calipers) and 255 mm rear disc. Q: Is the T120 Black suitable for both city rides and longer road trips? A: Yes — thanks to its torquey engine, comfortable ergonomics, manageable seat height, and modern features (such as cruise control and two riding modes) it’s well-suited for both everyday use and relaxed longer rides. Q: What are the major differences between the T120 Black edition and the standard T120? A: The Black edition retains the same mechanical and specification elements as the standard T120, but offers a darker styling theme (blacked-out engine covers, black rims, black exhaust, dark trims) and sometimes exclusive colour options and finishes. |
| Price Variants | | 475000 | BLACK |1235000 |
| 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. | Torquey, refined engine: The 1,200 cc parallel twin delivers strong mid-range torque and smooth power delivery, making the bike easy to ride and relaxed in every-day use. Excellent build quality & classic styling: With its retro aesthetics (spoke wheels, twin-pod instruments, brushed metal finishes) combined with modern touches, it stands out and carries good craftsmanship. Good ergonomics for many riders: Its relatively low seat height (~790 mm) and relaxed upright riding posture make it accessible and comfortable for commuting or relaxed rides. Modern features despite classic looks: It includes ride-by-wire throttle, dual riding modes, switchable traction control, ABS, and USB charging point — all unintrusive yet present. |
| Transmission | Manual | 6-speed |
