KTM 105 SX 2004 - Specifications & Review

Introducing the 2004 KTM 105 SX, a miniature powerhouse that exemplifies KTM’s dedication to performance and innovation in the minibike-sport category. Released as a competitive offering for young riders and transitioning enthusiasts, the 105 SX is designed to provide a thrilling experience on the track and off-road trails alike. This model is especially notable as it was exclusively sold in the U.S., making it a unique gem for those looking to introduce their budding motocross stars to the exhilarating world of two-stroke dirt bikes.

At the heart of the 105 SX lies an impressive single-cylinder, two-stroke engine with a displacement of 84.93 ccm (5.18 cubic inches). Its compact dimensions, with a bore and stroke of 47.0 x 49.0 mm, allow for quick revving and a responsive throttle. Paired with a six-speed gearbox, the engine delivers a punchy performance that is both exhilarating and manageable for younger riders. The liquid cooling system ensures optimal performance even during rigorous rides, while the carburettor fuel system enhances throttle response, making every twist of the wrist a thrilling experience. With a lightweight of just 68 kg (149.9 lbs), the 105 SX offers agile handling and remarkable maneuverability, perfect for those tight turns and jumps on the track.

The 2004 KTM 105 SX is built on a robust chromium molybdenum central-type frame that provides exceptional strength and rigidity, ensuring stability under high-speed conditions. The WP USD 43 front suspension and WP PDS monoshock rear suspension work harmoniously to absorb the bumps, offering a plush ride that enhances rider confidence. With impressive front and rear disc brakes, each measuring 216 mm (8.5 inches), stopping power is both reliable and responsive, crucial for a minibike designed for spirited riding. The bike's ground clearance of 430 mm (16.9 inches) and an adjustable seat height of 900 mm (35.4 inches) allow for versatility, accommodating a range of rider sizes and preferences.

Pros:

1. Lightweight Design: At just 68 kg, the 105 SX offers incredible agility and maneuverability, making it perfect for young and novice riders.
2. Responsive Engine: The two-stroke engine provides quick throttle response and exhilarating acceleration, enhancing the riding experience.
3. Superior Suspension: The combination of WP USD front forks and PDS rear monoshock ensures excellent handling and comfort over rough terrain.

Cons:

1. Limited Fuel Capacity: With a fuel capacity of only 5.00 liters (1.32 gallons), frequent refueling may be necessary during longer rides.
2. Two-Stroke Maintenance: The two-stroke engine requires more frequent maintenance and attention compared to four-stroke counterparts.
3. Height Considerations: The seat height may be a challenge for shorter riders, potentially affecting confidence and control during rides.

In summary, the 2004 KTM 105 SX stands as a remarkable miniature bike that emphasizes performance, agility, and rider development. Whether you’re introducing a young rider to the sport or looking for a lightweight option for competitive racing, the 105 SX proves to be an exceptional choice with its blend of power and precision.