Quick Analysis
KTM 50 SX
11.5 pts
Unweighted: 5 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
Suzuki GSX‑8R
34.0 pts
Unweighted: 29 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | — | Liquid-cooled |
| Displacement | 49.9 cc | 776 cc |
| Engine Type | 1-cylinder, 2-stroke engine | 4-stroke, parallel-twin, DOHC, 8-valve |
| Power | 5.3 bhp @ 11500 rpm | 82 bhp @ 8,500 rpm |
| Torque | 5.2 Nm @ 7500 rpm | 78 Nm @ 6,800 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 2.3 L | 14 litres |
| Mileage | 30 kmpl | 23 km/l |
| Top Speed (km/h) | — | 230 |
Dimensions & Weight |
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| Kerb Weight | 41 kg | 205 kg |
| Seat Height | 653 mm | 810 mm |
Brakes & Suspension |
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| ABS | — | Dual-channel ABS |
| Front Brake | Disc 160 mm | Dual 310 mm discs, radial-mount 4-piston calipers |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | Showa SFF-BP 43 mm upside-down fork |
| Rear Brake | Disc 160 mm | Single 240 mm disc, 1-piston caliper |
| Rear Suspension | XACT WP mono shock | Showa link-type mono-shock, preload adjustable |
Tyres & Wheels |
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| Front Tyre | 60/100 - 12 | 120/70 ZR17 (Tubeless) |
| Rear Tyre | 2.75 - 10 | 180/55 ZR17 (Tubeless) |
| Tyre Type | Tubed | Radial, Tubeless |
| Wheel Type | Spoke | Cast aluminium alloy |
Features & Technology |
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| Headlight | — | LED (projector-style, vertically stacked) |
Other Specifications |
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| Battery | — | 12 V, 8 Ah (Maintenance-free) |
| Bike Image 1 | — | https://motoautiv.com/wp-content/uploads/2025/11/241004_GSX_8R_WebsiteAdapts_colorSection_650x428px-09.jpg |
| Bike Image 2 | — | https://motoautiv.com/wp-content/uploads/2025/11/All-New-Suzuki-GSX-8R-Revealed-To-Be-A-Brilliant-Badass-3.jpg |
| Bike Image 3 | — | https://motoautiv.com/wp-content/uploads/2025/11/detail_ph04.jpg |
| Bike Image 4 | — | https://motoautiv.com/wp-content/uploads/2025/11/suzuki-gsx-8r-rear-view5.avif |
| Cluster | — | 5-inch full-colour TFT display (Bluetooth-enabled, multiple ride modes, traction control, gear indicator) |
| Color Options | Electronic Orange | Metallic Triton Blue | #0052A5 Metallic Matt Sword Silver | #B0B5B9 Metallic Matt Black No 2 | #1E1E1E |
| Connectivity Features | — | Bluetooth, ride modes, traction control, TFT display |
| 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. | Lacks the high-rev punch of inline-4 sportbikes. Slightly heavy at around 205 kg. Brakes could offer sharper feedback. Seat comfort isn’t ideal for very long rides. Wind protection is limited for high-speed touring. |
| 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 GSX-8R brings together Suzuki’s sportbike pedigree with practical everyday usability. At its heart lies a 776 cc liquid-cooled parallel-twin engine featuring a 270° crank and Suzuki’s Cross Balancer shaft — helping deliver smooth, vibration-reduced power with strong mid-range punch. This motor produces around 82 bhp at 8,500 rpm and 78 Nm of torque at 6,800 rpm, paired with a 6-speed gearbox and a bi-directional quick-shifter (up and down) as standard. Chassis-wise, it uses a steel diamond-style frame, cast aluminium 17″ wheels, and premium suspension: a Showa SFF-BP upside-down fork up front and a Showa link-type mono-shock at the rear (preload adjustable). Kerb weight is around 205 kg and seat height about 810 mm, with a 14-litre fuel tank. In terms of braking and tyres: twin 310 mm front discs with radial-mounted calipers, a single 240 mm rear disc, dual-channel ABS, and Dunlop RoadSport 2 radial tyres (120/70-17 front, 180/55-17 rear) ensure capable performance and grip. Feature-wise, it includes a full-colour 5″ TFT display, ride-by-wire throttle, three ride modes (Active, Basic, Comfort), four-level traction control, low RPM assist, and Suzuki’s Easy Start system — packaged under the Suzuki Intelligent Ride System (S.I.R.S.). Styling is aggressive yet functional: full fairing derived from wind-tunnel development, vertically stacked LED headlamps, exposed seat rails, and aerodynamic detailing. Available in three colour options for the Indian market: Metallic Triton Blue, Metallic Matt Sword Silver, and Metallic Matt Black No.2. Overall, the GSX-8R targets riders looking for more performance than a 650cc class sportbike, but with greater everyday usability than full-on liter-class superbikes. The ergonomics strike a balance — clip-ons and sporty lines, yet a comfortable setup for longer rides. The combination of modern electronics, strong mid-range power, and quality chassis and componentry make it a well-rounded middleweight sportbike for the Indian market. That said, some trade-offs exist: the fuel tank is modest (14 L), the seat height may be tall for shorter riders, and the weight means it isn’t the lightest in its class. Mileage in Indian use is claimed around 23.8 km/l (WMTC), though real-world urban figures may be lower. |
| Drive Modes | — | Active, Basic, Comfort |
| Expert Review | MotoAutiv Team | Experts agree that the GSX-8R stands out by offering a rare combination of spirited performance and daily practicality. It shines thanks to its smooth, torquey engine, premium electronics like quick-shifter and multiple ride modes, and high-quality chassis and suspension that deliver confidence on both city roads and twisty highways. While it may not deliver the full high-revving character or ultra-light feel of a dedicated superbike, its strength lies in doing many things well — sportiness, comfort, usability, features — rather than dominating one parameter. For riders looking for a true all-rounder middleweight with strong value, the GSX-8R hits the mark., 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? A: The mileage is around 23 kmpl (real-world mixed riding). Q: What is the engine capacity of the Suzuki GSX-8R? A: The engine displacement is 776 cc. Q: What is the maximum power of the Suzuki GSX-8R? A: The GSX-8R produces 82 bhp at 8,500 rpm. Q: What is the top speed of the Suzuki GSX-8R? A: The top speed is approximately 230 km/h. Q: Does the Suzuki GSX-8R have a quick-shifter? A: Yes, it comes with a bi-directional quick-shifter as standard. Q: What is the kerb weight of the Suzuki GSX-8R? A: The kerb weight is 205 kg. Q: How many ride modes does the GSX-8R have? A: It offers three ride modes — Active, Basic, and Comfort. Q: What is the seat height of the Suzuki GSX-8R? A: The seat height is 810 mm. Q: What is the fuel tank capacity? A: The GSX-8R has a 14-litre fuel tank. Q: What is the price of the Suzuki GSX-8R in India? A: The ex-showroom price in India is ₹9.25 lakh. |
| Final Drive Type | — | chain |
| Fuel System | — | Electronic fuel injection (EFI) |
| On-Road Price (Subsidy Adjusted, ₹) | — | 1132094 |
| Price Variants | | 475000 | Standard | 925000 | Single variant (Dual-channel ABS, bi-directional quick-shifter, ride-modes) |
| 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 mid-range torque from the 776 cc twin engine — great for both city and touring. Modern features like ride modes, traction control, and quick-shifter add premium feel. Comfortable riding posture — sporty yet practical for daily use. Good build quality and attractive design. Meets latest emission standards (OBD-2B compliant). |
| Starter | — | Electric |
| Transmission | Manual | 6-speed, bi-directional quick-shifter, assist & slipper clutch |
| Vehicle Warranty (Years) | — | 2 |
