
Lightweight, powerful and reliable, the KTM 85 SX boasts real big bike components in scaled-down 85 cc geometry, providing the ultimate kickstart to any young racing career.
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If you're reading this, then it is safe to say things have become serious. The 2023 KTM 85 SX - in big wheel guise - is the first real step into the big leagues.
Enquire NowLightweight, powerful and reliable, the KTM 85 SX boasts real big bike components in scaled-down 85 cc geometry, providing the ultimate kickstart to any young racing career.
KTM 2-strokes have been tearing up MX tracks for decades and are undoubtedly the fastest on the track today. Thanks to years of ongoing development, these engines are the benchmark in performance and technology, with the perfect combination of power, weight and control. Through melodic high-RPM screams, KTM 2-strokes continue to deliver thrilling high-performance harmonics.
For the 85cc, KTM has successfully developed a chassis that not only handles the hard-charging brutality of a 15-year-old, but also effectively accommodates a lightweight newcomer to the class. This is achieved through its lightweight, high-tech steel frame. Its optimized flex characteristics provide a great feeling for the rider and help to soak up those big hits, while also delivering excellent agility and high-speed stability. Every element is designed to work in perfect harmony and contributes to an intuitive ride like no other.
85cc riders come in all shapes and sizes, which requires intelligent motorcycle design to cater for these dynamics. For optimal high-performance ergonomics, KTM used the proven design of the big bike range on the KTM 85 SX. The goal was to provide a neutral riding position that, together with perfectly shaped bodywork, offers the best rider comfort and maneuverability. A rider's main interaction with the motorcycle comes through the seat, footpegs and handlebars, which is why KTM has used the best quality parts in these areas. The placement of these crucial contact points is also vitally important for balance and control and, through various handlebar position options, can be adjusted to suit a rider's preference. This ensures the optimal riding position for race-winning performance.
Absolute performance purity is the name of the game when it comes to the KTM 85 SX. Undiluted 2-stroke simplicity with an hour meter to keep a check on how long you've been shredding and an optional rev counter to assist with perfect setup.
It took extreme levels of ingenuity to fit the race-winning formula of KTM's bigger 2-strokes into a compact 85 cc engine. A special manufacturing process is used and provides impressive weight savings without sacrificing strength or durability. The super compact power plant is fitted with a 6-speed gear box and delivers class-leading power and rideability throughout the entire rev range. The power valve plays a key role in tailoring power delivery to suit track conditions and rider ability, ensuring that the only rider surprised by the incredible performance is the competition.
Maintaining the optimal engine temperature is crucial to ensuring consistent horsepower throughout the ride. The KTM 85 SX features radiators which are positioned for a lower center of gravity. Their design matches the shrouds perfectly and offers a great slim feel to the ergonomics. By using CFD technology (computational fluid dynamics) together with a clever coolant circuit routing, the innovative system ensures the optimum engine temperature for the highest performance, no matter what the conditions. The radiators also feature special protectors that serve not only as protection from flying rocks and debris but also as a brace that disperses energy around the radiators in the event of an impact.
The exhaust system has been designed to perfectly match the engine's power characteristics and contributes to the outstanding all-round performance and rideability. The header pipe is produced using a 3-dimensional stamping process. Once the components have been shaped, they are robot welded to ensure the highest level of quality, consistency and durability. The lightweight and compact silencer has been reworked with improved packing wool (40g lighter), guarenteeing that sweet 2-stroke sound and falling safely within the FIM noise limits.
The frame on the KTM 85 SX is a scaled-down version of the championship-proven full-size frames. It is professionally crafted using hydroformed chromium molybdenum steel tubes that are robot welded, ensuring the highest levels of consistent quality. The flex characteristics have been specifically tailored for easy handling and optimal comfort, while working in perfect harmony with the suspension, to ensure excellent agility and high-speed stability.
Black Excel rims and CNC-machined hubs ensure the strongest base of forward momentum on the KTM 85 SX. MAXXIS tires have been fitted to deliver exceptional straight-line stability and excellent traction on a wide variety of terrain, ensuring the power ends up where it is intended - on the ground.
The KTM 85 SX features the Formula brake system with radial calipers - four pistons in front, two in the rear - with lightweight Wave brake discs - front 240 mm diameter, rear 210 mm. The system is the benchmark in terms of controlled action and braking performance, ensuring powerful and confident braking.
Our factory trained technicians understand how valuable your time is and ensure top-level maintenance and repairs for your valued vehicle, along with a variety of specialised work.
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