Quick Analysis
KTM 50 SX
0.5 pts
Unweighted: 1 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
BMW G 310 GS
33.0 pts
Unweighted: 24 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | — | Liquid cooled system |
| Displacement | 49.9 cc | 313 cc |
| Engine Type | 1-cylinder, 2-stroke engine | Water-cooled, single-cylinder 4-stroke engine, four valves, two overhead camshafts and finger followers, wet sump lubrication |
| Power | 5.3 bhp @ 11500 rpm | 34 PS (25 kW) at 9,500 rpm |
| Torque | 5.2 Nm @ 7500 rpm | 28 Nm at 7,500 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 2.3 L | 11 L |
| Mileage | 30 kmpl | 30 |
Dimensions & Weight |
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| Kerb Weight | 41 kg | 169.5 |
| Seat Height | 653 mm | 835 |
Brakes & Suspension |
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| ABS | — | Dual Channel ABS |
| Front Brake | Disc 160 mm | Single disc 300 mm with a 4-piston radial caliper |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | Upside down fork , Ø 41 mm |
| Rear Brake | Disc 160 mm | Single disc 240 mm with a floating caliper |
| Rear Suspension | XACT WP mono shock | Cast aluminium dual swing arm |
Tyres & Wheels |
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| Front Tyre | 60/100 - 12 | 110/80 R19 |
| Rear Tyre | 2.75 - 10 | 150/70 R17 |
| Tyre Type | Tubed | Tubelesss |
| Wheel Type | Spoke | Alloy |
Features & Technology |
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| Headlight | — | LED |
Other Specifications |
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| Battery | — | 12 V / 8 Ah |
| Bike Image 1 | — | https://motoautiv.com/wp-content/uploads/2025/12/g310gsracingred.webp |
| Bike Image 2 | — | https://motoautiv.com/wp-content/uploads/2025/12/g310gscosmicblack3.webp |
| Cluster | — | Digital |
| Color Options | Electronic Orange | Racing Red | #C40000 Cosmic Black 3 | #1A1A1A Polar White with Racing Blue Metallic | #F5F5F5,#003399 |
| 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. | Seat height of 835 mm may be challenging for shorter riders. Fuel tank is only 11 litres, limiting long-distance touring range. Relatively expensive compared to entry-level adventure bikes in India. Single-cylinder engine vibrations can be felt at higher speeds on long rides. No advanced electronics or ride modes, which some competitors offer at this price point. |
| 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 BMW G 310 GS serves as a lightweight entry into the adventure-touring segment, specifically engineered to balance urban agility with light trail capability. At its core is a 313cc, single-cylinder engine featuring a unique “reverse-inclined” layout, which positions the intake at the front and exhaust at the rear to lower the bike’s center of gravity. This liquid-cooled, DOHC unit produces 34 PS of power and 28 Nm of torque, managed through a 6-speed gearbox equipped with an anti-hopping slipper clutch and ride-by-wire throttle for smoother transitions. The chassis is built around a tubular space frame supported by a suspension system designed for high comfort levels on uneven surfaces. It features 41mm upside-down front forks and a rear monoshock, both providing 180mm of travel to effectively absorb road irregularities. The bike rolls on a 19-inch front and 17-inch rear cast aluminum wheel setup, fitted with tubeless radial tyres. Braking is handled by a large 300mm front disc and a 240mm rear disc, both integrated with a dual-channel ABS system for consistent stopping power. Ergonomically, the motorcycle provides an upright, neutral seating position with a standard seat height of 835mm, making it a stable platform for both commuting and touring. With a kerb weight of 175 kg and an 11.5-liter fuel tank, it remains manageable for a variety of riders. The interface includes a full LED lighting package and a functional LCD digital instrument cluster that provides essential ride data at a glance. |
| Expert Review | MotoAutiv Team | The BMW G 310 GS is a purposefully engineered adventure tourer that prioritizes mechanical refinement and rider ergonomics over aggressive off-road performance. Its standout feature is a plush, long-travel suspension system that effectively isolates the rider from the harsh irregularities typical of Indian road infrastructure. Complemented by an upright, commanding seating position, the motorcycle offers superior long-distance comfort and high visibility for urban navigation. The 313cc liquid-cooled engine is characterized by a linear power delivery of 34 PS, providing a predictable and manageable experience for intermediate riders. While it maintains highway speeds with ease, high-frequency vibrations at the upper end of the rev range remain a known trait of its single-cylinder configuration. Ultimately, the G 310 GS represents a premium ownership proposition, where the initial build quality and brand prestige are balanced against higher-than-average maintenance costs and a relatively concentrated service network., 4.4, 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 mileage of BMW G 310 GS? A: The mileage is approximately 28–30 kmpl. Q: Does BMW G 310 GS have ABS? A: Yes, it comes with dual-channel ABS. Q: Is the BMW G 310 GS suitable for short riders? A: The standard BMW G 310 GS seat height is 835mm, which can be challenging for anyone under 5'7". However, BMW offers a low seat option (820mm), and the bike's narrow profile and light 170kg kerb weight make the BMW G 310 GS easier to balance with one foot down. Q: How much is the annual maintenance cost for a BMW G 310 GS in India? A: Expect to pay between ₹6,000 and ₹10,000 for a standard annual service of the BMW G 310 GS. Major services (every 20,000 km) for the BMW G 310 GS can cost significantly more, sometimes exceeding ₹20,000 if parts like the chain-sprocket or brake pads need replacement. Q: Is the BMW G 310 GS engine reliable for long-distance touring? A: The BMW G 310 GS uses a proven 313cc reverse-inclined engine that manages heat very well. |
| Fuel System | — | Electronic fuel injection |
| Price Variants | | 475000 | Standard | 324973 |
| 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. | Compact and lightweight adventure bike, making it very manageable in city traffic and narrow streets. Refined engine that delivers smooth power and strong mid-range torque, perfect for both urban commuting and occasional highway runs. Comfortable long-travel suspension that absorbs potholes and rough Indian roads effectively. Strong and predictable braking with dual-channel ABS for enhanced safety. High-quality build and premium feel typical of BMW motorcycles. Good ergonomics and upright seating that reduce fatigue during longer rides. LED headlight and digital instrument cluster improve visibility and usability. Tubeless radial tyres provide better grip and easier maintenance. |
| Starter | — | Electric |
| Transmission | Manual | 6-speed manual |
