
KTM 50 SX
Key specifications
Overview
Introducing the 2015 KTM 50 SX, the perfect entry-level motorcycle that embodies the spirit of cross-motocross racing for young riders. Renowned for its agility and lightweight design, the 50 SX is specifically engineered for budding motocross enthusiasts who are ready to take their first steps into the thrilling world of dirt biking. With a striking orange and black color scheme that reflects KTM's iconic branding, this mini bike not only looks the part but is built to deliver an exhilarating ride that builds confidence and skills from the ground up. At the heart of the 50 SX lies a potent 49cc single-cylinder, two-stroke engine that produces a thrilling 5.5 horsepower, making it ideal for novice riders. The engine's simplicity, combined with a well-tuned carburettor and liquid cooling system, ensures consistent performance and reliability in various conditions. Riders will appreciate the 1-speed automatic gearbox, which allows for smooth acceleration without the complexities of shifting gears. This, coupled with the centrifugal clutch, means that young pilots can focus on mastering their riding skills rather than grappling with manual clutch control. With a lightweight frame weighing in at just 39.8 kg (87.7 pounds), the 50 SX is nimble, providing a responsive handling experience on the track or trail. KTM has outfitted the 50 SX with advanced features that enhance both safety and comfort. The central tube frame, crafted from durable chrome molybdenum steel and powder-coated for longevity, offers excellent rigidity and stability, while the WP suspension system ensures a plush ride over bumps and obstacles. The front and rear disc brakes, with impressive diameters of 160 mm and 140 mm respectively, provide reliable stopping power, allowing young riders to build confidence in their braking skills. With a ground clearance of 252 mm and an adjustable seat height of 684 mm, the 50 SX accommodates a wide range of rider sizes, making it versatile for growing enthusiasts. In summary, the 2015 KTM 50 SX is a remarkable entry-level motocross bike that strikes a perfect balance between performance and accessibility, making it an ideal choice for young riders eager to hone their skills and enjoy the thrill of off-road adventures.
Pros
- Lightweight Design: At just 39.8 kg, it’s incredibly easy to handle for beginners.
- User-Friendly Power Delivery: The automatic clutch and single-speed gearbox simplify the riding experience.
- Robust Suspension: WP components provide excellent stability and comfort across varied terrains.
Cons
- Limited Power for Advanced Riders: While great for beginners, more experienced riders may find the 5.5 hp restrictive.
- Small Fuel Capacity: With only 2.3 liters, frequent refueling may be necessary during extended rides.
- Kick Start Only: The absence of an electric starter might be a challenge for younger or less experienced riders.
Technical details
Source specification data
- Make
- KTM
- Model
- 50 SX
- Category
- Cross-motocross
- Starter
- Kick
- Comments
- For absolute beginners, the engine power can be restricted to a moderate 5.5 hp with a kit.
- Color Options
- Orange/Black
- Clutch
- 3-lining automatic clutch on the main shaft / centrifugal force
- Gearbox
- 1-speed
- Ignition
- SELETTRA 2p D36
- Driveline
- 11:40. Primary drive: 33:61 straight cut spur gear.
- Engine Type
- Reed intake.
- Fuel System
- Carburettor
- Bore X Stroke
- 39.5 x 40.0 mm (1.6 x 1.6 inches)
- Displacement
- 49.00 ccm (2.99 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, two-stroke
- Lubrication System
- Mixture oil lubrication
- Transmission Type Final Drive
- Chain
- Dry Weight
- 39.8 kg (87.7 pounds)
- Seat Height
- 684 mm (26.9 inches) If adjustable, lowest setting.
- Fuel Capacity
- 2.30 litres (0.61 gallons)
- Ground Clearance
- 252 mm (9.9 inches)
- Rake
- 24.0°
- Frame Type
- Central tube frame of chrome molybdenum steel tubing, powder-coated
- Rear Brakes
- Single disc. Two-piston calipers.
- Front Brakes
- Single disc. Four-piston calipers.
- Rear Suspension
- WP Suspension 3614 BAEM
- Front Suspension
- WP Suspension USD 35
- Rear Wheel Travel
- 185 mm (7.3 inches)
- Front Wheel Travel
- 205 mm (8.1 inches)
- Rear Brakes Diameter
- 140 mm (5.5 inches)
- Front Brakes Diameter
- 160 mm (6.3 inches)