Model Description


The KTM 65 SX is a fully-fledged race machine for young pilots aged between 8 and 12 years. This little flyer features the latest WP XACT front forks with revolutionary AER technology, ultra-cool graphics and a power delivery that sets the benchmark in its class. Like its larger counterparts, the KTM 65 SX has READY TO RACE ride dynamics, quality equipment and superior craftsmanship, providing winning performance to young competitors.
 
ENGINE
The KTM 65 SX features cutting-edge 2-stroke technology and an easy-to-shift 6-speed transmission with a hydraulic clutch. Benefitting from a reworked ignition curve, the cylinder, with its pressure-controlled exhaust valve, continues to provide class-leading power and plenty of torque. 
 
CYLINDER
The high performance cylinder features a pressure-controlled exhaust valve (PCEV) and provides unrivaled performance within the highly competitive 65 cc class.
 
CLUTCH
An outstanding feature of the KTM 65 SX is the hydraulic clutch made by Formula. It provides easy clutch action and well-defined modulation.
 
COOLING
An intelligent cooling circuit with integrated crankcase cooling and two radiators improves the heat dissipation and ensures a constant temperature balance for consistent, high performance.
 
FRAME
The modern frame is made from lightweight, high strength chromoly steel profiles and combines maximum longitudinal stiffness with optimum torsional rigidity. It guarantees easy handling and precise cornering, but also outstanding stability.
 
SWINGARM
The KTM 65 SX is fitted with a lightweight cast aluminum swingarm. Conceived using the latest in calculation and simulation software, the focus of the design was for minimum weight, optimum stiffness and precisely defined flexibility. In addition, it features a robust 2-compound chain guide, similar to the full-size models.
 
WHEELS
Like the full-size KTM Factory racers, the 65 SX has super lightweight, black anodized, aluminum rims providing the highest strength. The OEM MAXXIS knobbly tires grip superbly on any surface.
 
FRONT SUSPENSION
The KTM 65 SX is the first model in its class to be fitted with a modern, fully adjustable air fork: the WP XACT AER fork. The upside-down front fork with a 35mm tube diameter and 215mm of travel ensures outstanding comfort, damping characteristics and directional stability. Another main benefit for junior riders is that the air spring fitted in the left fork leg can be adjusted perfectly to the rider’s weight using a simple air pump.
 
REAR SUSPENSION
The high quality WP XACT shock absorber is linked directly to the swingarm, providing excellent damping performance. It is fully adjustable, meaning you can set the damping perfectly to suit the rider’s preference and track conditions. The shock absorber allows for 270 mm of rear wheel travel.
 
BRAKES
The front and rear brakes have massive 4 piston calipers that grip lightweight wave brake discs – 198 mm front and 160 mm rear. The hydraulic brake system is easy to control and ensures the best deceleration and the highest standard when it comes to performance.
 
HANDLEBAR
A new high-quality tapered handlebar made from aluminum alloy has the perfect bend to suit the ergonomics and the highest strength. A new slide pad on the handlebar protects the rider in the event of contact. Additionally, the bike comes standard with ODI lock-on grips, which include a vulcanized grip on the right side and a lock-on grip on the left that does not require glue or wire for mounting.
 
BODYWORK & GRAPHICS
The 2021 KTM SX models feature the latest in-mold graphics, matching the factory-look orange frames and bodywork perfectly. They have a fast and aggressive style that screams READY TO RACE, leaving no doubt as to the bikes’ high-performance intentions.

Model Specification


  • Engine

    Engine Type

    Single cylinder, 2-stroke

    Displacement

    64.9 cc

    Starter

    Kickstarter

    Transmission

    6 gear

    Clutch

    Wet multi-disc clutch, hydraulically operated

    ABS System

    Engine Management System

  • Dimensions

    Bore

    45 mm

    Stroke

    40.8 mm

    Ground Clearance (unloaded)

    280 mm

    Seat Height

    750 mm

    Weight (No Fuel)

    53 kg

  • Frame

    Frame

    25CrMo4 steel central-tube frame

    Chain

    1/2 x 1/4

    Steering Head Angle

    64.5 degrees

    Tank Capacity

    3.5 litres

  • Suspension

    Front Suspension

    XACT 35 WP upside-down fork, 35mm

    Rear Suspension

    XACT WP shock absorber

    Suspension Travel Front

    215 mm

    Suspension Travel Rear

    270 mm

  • Performance

    Brake System Front

    Disc brake 198 mm

    Brake System Rear

    Disc brake 160 mm

    Power

    Torque

  • Brakes

    Front Brake Disc Diameter

    Rear Brake Disc Diameter