Keeping the show on the dirt are black Excel-branded rims and CNC machined hubs fitted with MAXXIS MAXXCROSS MX-ST tires. Not only does this combination deliver outstanding performance on a variety of terrain, but the pattern design and rubber compounds deliver exceptional straight-line stability and excellent traction. As always, the KTM 85 SX is available in two rims sizes -19/16 and 17/14.
Review – Key Features – Features & Benefits – Specifications
2026 KTM 85 SX 19/16: STEP INTO THE BIG LEAGUES.
Introducing the 2026 KTM 85 SX 19/16…
The last step awaits. The KTM 85 SX is ready to raise the speed for you. Developed on track and at an international level, the KTM 85 SX boasts significantly enhanced handling, searing power delivery and proven READY TO RACE DNA through its components and pedigree. You spoke, we listened. We developed. Now continue the journey. Fast.
2026 KTM 85 SX 19/16 Totalmotorcycle.com Key Features
THE 2026 KTM SX RANGE SETS THE LATEST MOTOCROSS STANDARD
A new season, new objectives and new standards. Those seeking utter performance and a comprehensive expression of power, handling, proven competitiveness and an unmissable image need to look no further than the refreshed KTM SX Motocross roster for 2026. Coming to an authorized KTM dealer near you from August 2025, the peerless KTM SX range will entice every rider, every age and every level to soak up the ultimate Motocross experience and the thrill of shredding terrain.
A total of 10 models lie in store. The KTM Sportminicycles:
KTM 50 SX
KTM 50 SX FACTORY EDITION
KTM 65 SX
KTM 85 SX
The full size 2-stroke and 4-stroke spectrum:
KTM 125 SX
KTM 250 SX
KTM 300 SX
KTM 250 SX-F
KTM 350 SX-F
KTM 450 SX-F
FULL-SIZE FIREPOWER: KTM SX & SX-F MODELS LEAD THE PACK
The 2026 lineup remains on top of the podium thanks to KTM’s SX philosophy of agile handling and race-winning power. Every model is equipped with class-leading electronics, refined chassis dynamics and explosive power delivery. Riders aiming for factory-level precision can unlock full adjustability with the optional Connectivity Unit Offroad (CUO). Paired with the KTMconnect app, it enables fine-tuning of engine behavior, traction control, and suspension settings.
The settings and configuration of the full size KTM SXs and KTM SX-Fs come from the substantial success and learnings of competition in the FIM Motocross World Championship (wins in both MXGP and MX2 classes with the KTM 450 SX-F and KTM 250 SX-F) and the AMA Supercross and Motocross series. Depending on the market there are also options with a default noise decibel limit to adhere to FIM guidelines from the start of the 2025 calendar year. The latest model lineup is easy to detect on all models with a revitalized orange aesthetic, the principal color and graphics now also embracing a shade of purple on the tank spoilers and fork guards. The frame is powder-coated black with a matching black seat.
KTM has tweaked the radiator closure to be more standardized and for easier access on all KTM SXs. Where applicable, all fuel injection units have a new protector cap for the fuel link quick lock system that will beef-up durability and also assist with maintenance. The 2-stroke KTM SXs have an improved wiring harness routing and the adjustments of the fixing points and organization represent another effort for resistance against the elements.
THE NEXT GENERATION OF RACERS STARTS HERE
KTM’s commitment to providing the widest and highest quality platform of progression for young riders is steadfast for 2026. KTM Sportminicycles remain a cornerstone of development, giving young riders the tools to start their journey – from first laps on the electric KTM SX-E models to racing progression with the KTM 50 SX and KTM 85 SX.
Fun or first place? The 2026 KTM Sportminicycles will carry youth on their way. The KTM 50 SX and KTM 65 SX benefit from a new WP XACT AER front fork with a renewed air cartridge and sealing concept for better damping, control and overall performance. The radiator closure has been tweaked to be more standardized and for easier access same as on the bigger KTM SX models. The triple clamps for the KTM 50 SX, KTM 65 SX and KTM 85 SX now have the same 17 mm wrench size and closed screw nut format as the full size KTM SXs to add a further barrier against dirt and water intrusion. On the theme of resistance, the throttle cable assembly is less prone to kinking and deformation thanks to a new stabilization cap.
The 2026 KTM 65 SX takes the next for maximum durability with an overhauled clutch fixation system in place. The pre-coating and increased torque tightening mean a step up in terms of excellence. Running through these KTM SXs, a new laser-cut exhaust flange gasket promotes more reliability and the exhaust valve ventilation emanating from the cylinder has been redesigned in Austria with the same mission in mind. The KTM 85 SX has been given a new rear brake lever with two adjustment options for length to the brake tip. This will help in terms of set-up for different sized kids who are making the transition from the KTM 65 SX to the bigger 85 SX.
The KTM 50 SX FACTORY EDITION is for any child that is already fantasizing of checkered flags and does not tire of watching their racing heroes. The READY TO RACE KTM PowerParts components and factory team replica livery will pull them closer to the dream and create a tight link to Red Bull KTM Factory Racing stars.
2026 KTM SX RANGE HIGHLIGHTS:
- Latest iterations of technical base that has won championships and races in both international and domestic competition across the globe.
- Latest 2026 in-mold graphics and color scheme with greater orange emphasis, purple details, black seat and black frame color.
- KTM Sportminicycle are packed with new upgrades, including improved WP XACT suspension, updated clutch components, and refined durability across the board.
- Full collection of KTM PowerParts and KTM PowerWear to complement each motorcycle from protection to customization, performance and aesthetics.
Manfred Edlinger, Head of Motocross Development:
“We’re in the fourth year of the current generation for the KTM SX full-size models, the third for the KTM 50 SX and 65 SX and the second for the KTM 85 SX: the bikes keep moving from strength to strength as we find measures and changes to make sure we stay at the forefront of choice for all racers. The whole full-size range has been re-styled, but we’ve also found ways to bolster the KTM Sportminicycles because we know the components, the performance and the technical base of these special KTM bikes will satisfy the hungriest little racer or their supportive family. Embrace the ‘bar’ again, because we’re pumped to continue lifting it in motocross.”
2026 KTM 85 SX 19/16 Totalmotorcycle.com Features and Benefits
PUMPED UP!
Adjustable Suspension
Don’t worry about change. The KTM 85 SX’s WP XACT suspension is adjustable upfront and at the rear. The WP XACT AER fork can be easily modified with the use of an air pump. This allows riders to tailor the KTM 85 SX to their specifications, weight, or track conditions. The WP XACT monoshock is fully changeable for preload, compression, and rebound.
RACER, START YOUR ENGINE!
Ignition
The KTM 85 SX has a CDI box from Hidria bringing lots of processing power and a fiery ignition curve. The benefits? A faster ignition process, smoother engine operation, and shorter heating time in colder temperatures.
LIGHT IT UP!
Combustion Chamber
The combustion chamber was recently redesigned with a smaller spark plug. This makes for more effective and efficient combustion, reducing the compression ratio generating more power and torque.
POWERED ON
Engine
The KTM 85 SX holds the kind of firepower that makes it the reference in the start gate. Weighing 120 g less than the previous generation, the engine produces high performance and optimized integration with the chassis. This means punch in the low and mid-RPM range, torque, and reliability.
MORE POWER
Factory Performance Kit
Boost the performance of your KTM 85 SX by installing the 105 Factory Kit, ideal for tackling larger track layouts. This kit includes enhanced engine components, a cylinder head, a combustion chamber insert, a CDI control unit, and a spark plug.
MORE BRAAAAP!
Exhaust
Giving this junior rocket its signature ‘Braaap!” is an all-new exhaust system, featuring a new manufacturing process – just like on the full-size 2-stroke KTM SX range. Thanks to the removal of seams between individual sheets, the exhaust flow is optimized, resulting in substantial improvements when it comes to thermodynamics. Simply put – this pipe performs.
SHIFTIN’ GEARS
Shifting Mechanism
Clicking into gear is even smoother with a recently updated shift drum. Thanks to the coating finish, shifting up and down the ‘box is smoother, more reliable, and rock-solid even after many hours of use.
FLUID RIDER MOTION
Ergonomics
Meet the 2025 KTM 85 SX in a dark alley, and you’d be forgiven for thinking it was one of its bigger siblings. With a carefully scaled-down design that mimics that of the full-sized KTM SX range, this little weapon has unparalleled aesthetic appeal. What’s more, it also provides young riders with an exceptional riding experience and sensation, getting them ready to step up to the big leagues.
STEADIER ON THE GAS
Throttle cable
Goodbye to kinks, hello to increased durability. We’ve applied an additional stabilizer cap to the throttle assembly to hike the quality. Now, just hold it open wider and for longer.
FULLY FUELED
Tank
The tank design fits the frame concept and bodywork, providing the ideal support for young knees to grip, and 1.42 gallons (5.4 liters) of screaming fury to rip.
IN TOUCH WITH THE RIDER
Triple clamps, Bars & Pegs
The triple clamps now have an improved upper fixing mechanism that is more resistant to dirt and water, preserving the lifespan of the steering head bearings. The necessary wrench size has also been reduced to a handy 17 mm. The tapered black Neken-branded handlebars are made of high-quality aluminum alloy, ensuring top stability and vibration damping, while the ‘no-dirt’ designed footrests offer a bigger surface area to step on while being less susceptible to hooking on deep ruts, and take-offs when scrubbing. The result? Better control, more leverage and more to hold onto when charging down the holeshot. We’re also aware that smaller riders might be making their first laps after graduating from the KTM 65 SX, so we’ve provided two length adjustment options for the rear brake lever.
BRINGING THE BACKBONE
Frame
Premium handling and feel comes through a high-strength chromium molybdenum steel frame design, taken from the full-sized KTM SX range. Together with forged connecting parts, carefully calculated parameters of longitudinal flex and torsional rigidity, and incorporated sheet metal parts allow for tailor-made stiffness. The frame layout features a typical MX design without any cross tube behind the steering head. The rear shock mount is separate from the main upper frame tube like our full-size models, with frame protectors as standard.
RIGID REINFORCEMENT
Subframe
We still bank on our 1-piece polyamide glass-fiber-reinforced aluminum subframe. Not only does the material reduce the weight of the whole construction, but it also features specifically engineered rigidity, delivering outstanding handling and rider feedback. It’s also the perfect spot for integrated electronics, seat support, and hour meter mounting position.
UNFLAPPABLE FRONT END
WP XACT Fork
The KTM 85 SX is fitted with a state-of-the-art WP XACT AER fork. These ultra-lightweight, 43 mm USD forks feature exceptional damping and comfort, allowing the rider to push the limit confidently.
TRACK SMOOTHER
WP XACT SHOCK
Mirroring the latest technology found in the full-size motocross range, the KTM 85 SX features a fully adjustable WP XACT monoshock. This is perfectly matched to the front forks, bringing ideal balance and damping characteristics, along with improved traction, a more planted feel, and control at speed.
RACING ON RAILS
Wheels and Tires
Keeping the show on the dirt are black Excel-branded rims and CNC machined hubs fitted with MAXXIS MAXXCROSS MX-ST tires. Not only does this combination deliver outstanding performance on a variety of terrain, but the pattern design and rubber compounds deliver exceptional straight-line stability and excellent traction. As always, the KTM 85 SX is available in two rims sizes -19/16 and 17/14.
PRECISE, LAP AFTER LAP
Radiators
The KTM 85 SX features state-of-the-art radiators produced by Pankl, inspired by the full-size SX range. These feature the same design albeit shortened to fit the 85cc needs, size and works to ensure the engine is running at optimal temperatures when being ripped around the track, lap after lap. For 2026, a new threaded radiator cap allows easier and faster opening with reduced force.
BREATH IN DEEP
Airbox and Filter
The airbox concept has been designed with precisely positioned inlet ducts to prevent air deformation, ensuring maximum airflow and filter protection. The Twin Air filter can be easily accessed without tools by removing the left side panel.
2026 KTM 85 SX 19/16 – Totalmotorcycle.com International Specifications/Technical Details
US MSRP Price: $ See Dealer USD
Canada MSRP Price: $ See Dealer CDN
Europe/UK MSRP Price: £ See Dealer GBP (On The Road inc 20% Vat)
Engine
Design
1-cylinder, 2-stroke engine
Displacement
84.9 cm³
Transmission
6-speed
EMS
Keihin PWK 28
Engine oil
Motorex Formula 4T 15W/50
Clutch primary drive teeth
64
Clutch
Wet, multi-disc clutch, Formula hydraulics
Engine cylinder
Single cylinder
Engine stroke
2-Stroke
Chassis
Frame design
Central-tube frame with double-cradle
Front brake
Disc brake
Rear brake
Disc brake
Rear subframe design
Aluminium / Polyamide Glass Fiber
Chain
428, Non-sealed
Suspension
Front suspension
XACT 43 WP Upside-Down fork, Ø 43 mm
Rear suspension
XACT WP PDS mono shock
Suspension travel (front)
278 mm
Suspension travel (rear)
289 mm
Front suspension type
WP XACT
Front suspension adjustment
Compression and rebound adjustable
Rear suspension addition
Preload adjuster
Dimensions
Seat height
871 mm
Ground clearance
333 mm
Tank capacity (approx.)
5.4 l
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
Posted on July 30, 2025 by Michael Le Pard
