KTM 150 SX 2021 - Specifications & Review

Introducing the 2021 KTM 150 SX, a stalwart in the cross-motocross category, designed for those who crave adrenaline and precision on the track. With a MSRP starting at $7,599, this lightweight powerhouse is tailored for young racers and seasoned riders alike, bridging the gap between 125cc and 250cc classes. The KTM 150 SX embodies KTM’s commitment to performance, agility, and advanced engineering, setting a high bar for competitive motocross machines.

At the heart of the 150 SX is a spirited 144cc single-cylinder, two-stroke engine that delivers exhilarating power and responsiveness. With a bore of 58mm and a stroke of 54.5mm, the engine excels in producing a strong mid-range powerband, ideal for quick acceleration and sharp cornering. The Mikuni TMX carburettor ensures optimal fuel delivery, while the Kokusan EMS ignition system enhances performance across varied conditions. Coupled with a 6-speed gearbox and a Brembo hydraulic clutch, riders can experience seamless gear changes, allowing them to harness the bike’s full potential with precision control. Weighing in at just 192.9 pounds, the 150 SX is incredibly nimble, making it easy to maneuver through tight tracks and rugged terrains.

KTM has packed the 150 SX with cutting-edge features that elevate the riding experience. The robust 25CrMo4 steel frame provides exceptional stability, while the WP XACT-USD front suspension and WP XACT Monoshock rear suspension, boasting travel measurements of 310mm and 300mm respectively, guarantee a smooth ride over bumps and ruts. With a ground clearance of 375mm and an adjustable seat height of 850mm, this bike caters to various rider sizes, enhancing comfort and control. The powerful braking system, consisting of a single front disc with four-piston calipers and a rear disc with two-piston calipers, ensures confident stopping power, vital for competitive racing situations. Available in a striking orange, white, and black color scheme, the 150 SX is visually stunning and performance-ready.

Pros:

1. Lightweight and agile design enhances maneuverability on the track.
2. Strong mid-range powerband for quick acceleration and sharp handling.
3. Advanced suspension system provides excellent stability and comfort over rough terrain.

Cons:

1. Limited fuel capacity of 1.98 gallons may require more frequent stops during long rides.
2. Kick-start only may not appeal to all riders, especially in competitive scenarios.
3. The height of 33.5 inches may be challenging for shorter riders, even with adjustable settings.

In summary, the 2021 KTM 150 SX is a formidable contender in the motocross arena, providing riders with a blend of power, technology, and agility that is hard to beat. Whether you’re hitting the local track or competing at a higher level, the 150 SX promises an exhilarating ride for those who dare to push their limits.