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2021 150 SX KTM Powerful Dirt Motorcycle Review

The new 2021 150 SX KTM Powerful Dirt Motorcycle is a dynamic package ready to take on the 250 cc 4-strokes, with the agility of a 125 and a generous dose of more power. The tiny engine provides class-leading torque and power inside its sporty lightweight chassis. This motorbike screams high-performance enjoyment, and it enters the fight as the ultimate on-track competitor.

2021 150 SX KTM Powerful Dirt Motorcycle – Features and Price

2021 150 SX KTM Powerful Dirt Motorcycle


When it comes to efficient power delivery and performance, the exhaust designed particularly for this bike plays an important role and delivers a powerful punch. Furthermore, its unique design allows for smaller ergonomics while functioning safely within racing noise limitations.

2021 150 SX KTM Powerful Dirt Motorcycle


The sheer pleasure provided by this bike’s engine justifies its continuous manufacturing. Because it shares many critical components with the class-leading 125, the cylinder, cylinder head, and piston unit may now be installed on a 125-cc engine base, turning it to a 150 SX without needing a crankshaft replacement. This unique 2-stroke engine is a lightweight powerhouse that is compact and powerful.


The KTM 150 SX’s airbox guarantees excellent flow dynamics, which, when combined with the intake snorkels, results in maximum power and rapid throttle response. Despite the apparent performance benefits, the design also provides optimum protection against air filter soiling. The massive Twin-Air air filter is installed on an ingeniously built strong cage, which reduces the possibility of the wrong installation. As with prior models, filter maintenance is fast and uncomplicated and requires no tools – an essential, original KTM feature.

2021 150 SX KTM Powerful Dirt Motorcycle


The frame is expertly made from hydro-formed chromium-molybdenum steel tubes that are robot welded to ensure the most significant levels of consistency. The stiffness has been carefully calibrated for the most dynamic handling possible, and it works in perfect harmony with the suspension to give agile agility without sacrificing high-speed stability.

The frame also has “no dirt” footpegs, which have a simple but efficient self-cleaning mechanism that guarantees the footpegs return to their original position, giving you perfect control in any circumstance. All SX frames have the same high-durability powder coating as the KTM Factory models and have standard frame protectors. The lightweight aluminum subframe provides rear fender stability and robust support for the rider while adding minimal weight.

2021 150 SX KTM Powerful Dirt Motorcycle


Even while digging in deep ruts, sophisticated ‘no-dirt’ footpegs avoid clogging of the footpeg pivot. Do you want to ride in a higher position? Then just install the 2019 EXC models’ footpegs, which are 6 mm taller than the SX ones.


The seat on all KTM SX models matches the range’s dynamic performance-oriented ergonomics. The silicone stripes on the seat cover improve the rider’s sensation and grip. The seat is securely fastened to the bike with a single long lateral screw, making it secure and straightforward to handle.

2021 150 SX KTM Powerful Dirt Motorcycle – Price

The new 2021 150 SX KTM Powerful Dirt Motorcycle is available at $7,599 only.

2021 150 SX KTM Powerful Dirt Motorcycle – Technical Specifications


Transmission 6-speed
Starter Kickstarter
Stroke 54.5 mm
Bore 58 mm
Clutch Multi-plate clutch, Brembo hydraulics
Displacement 143.99 cm³
EMS Kokusan


Weight (Without Fuel) 87.5 kg
Tank Capacity (Approx.) 7.5 l
Front Brake Disc Diameter 260 mm
Rear Brake Disc Diameter 220 mm
Front Brake Disc brake
Rear Brake Disc brake
Chain 5/8 x 1/4″
Frame Design Central double-cradle-type 25CrMo4 steel
Front Suspension WP XACT-USD, Ø 48 mm
Ground Clearance 375 mm
Rear Suspension WP XACT Monoshock with linkage
Seat Height 850 mm
Steering Head Angle 63.9 °
Suspension Travel (Front) 310 mm
Suspension Travel (Rear) 300 mm

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