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For 2015, the KTM model range includes a wide range of engines and displacements from the powerful yet lightweight two-strokes, to the all-conquering ability of the four-strokes with a vast array of updates to further improve these already well-refined machines. Most of the listed changes apply to all of the SX and SXF big-bike models, but not the minicycles.

NEW FOR 2015

2015 KTM 450SXF

1. New machined cross tube in the frame that provides a stronger more accurate connection of the frame and the linage due to an improved production process resulting in a 60 gram weight reduction. The frame is now powder-coated in KTM Factory orange.

2015 KTM 350SXF

2. New linkage geometry with an improved rising rate, better control, stability and balance. On the linkage there is now an improved production process for higher quality resulting in a 40 gram weight reduction.

3. New WP 4CS fork specifically designed for Motocross. The new fork lugs feature a 22mm front axle for reduced weight and better feel along with a 2mm reduced off-set for improved handling. There are new fork protectors with an open design, which are easier to replace for better maintenance and cleaning of the fork leg.

2015 KTM 250SXF

4. New monoshock setting, which has been re-valved and set-up to match the new linkage and fork. The shock features a 4mm increase of shaft travel while maintaining the same amount of wheel travel with the new linkage package.

5. New Dunlop GEOMAX MX52 tires for excellent traction in all conditions.

6. New aluminum o-ring support for the lower bearing on the steering stem for a weight saving of 22 grams and a new steering stem bolt, which is also 8 grams lighter.

2015 KTM 250SX two-stroke.

7. New high-quality black colored Excel rims for aggressive looks and top performance

8. New softer two-compound grips.

2015 KTM 150SX two-stroke.

9.  The improved, modern and lightweight frame design manufactured by WP Performance Systems is made from lightweight, high-strength chromoly steel sections. The 2015 now has a new machined cross tube that unites the two sides of the frame and connects the linkage rods to the frame.  This provides exact production tolerances and consistent chassis characteristics thanks to the absence of welding. It is also lighter (58 grams) than the previous cross tube design.

2015 KTM 125SX two-stroke.

10. The swingarm was created using the latest in calculation and simulation software, the design and wall thickness of the cast aluminum swingarm has been refined for minimum weight at optimum stiffness. Precisely defined flexibility provides perfect stability, which gives excellent traction, stability and comfort.

2015 KTM 85SX two-stroke.

11. Top quality CNC machined triple clamps have been something of a KTM trademark for years. Offering a precise handling with top quality performance, they particularly support the flex characteristics, and with it, the forks’ action. The o-ring support for the lower bearing on the steering stem has been revised and is now made of aluminum to save 22grams, while the steering stem bolt is now also 8grams lighter.

2015 KTM 65SX two-stroke.

12. In shaping the bodywork the KTM designers’ ergonomic and design focus was to achieve complete harmony between rider and bike, right down to the finest details. The front fender is a prime example of a molded polymer component, gaining maximum stability through a well thought-out structure and mounting system. The 2015 bodywork gets updated graphics to highlight the racing character of the bikes.

13. The airbox design offers maximum protection of the air filter against dirt, while providing maximum airflow for high performance. The TwinAir filter can be changed without tools in seconds, which is a standard feature by KTM for fast and efficient maintenance.

2015 KTM 50SX two-stroke.

14. The new sprocket design is 50 grams lighter.

15. All KTM SX models are fitted with the super-strong, tapered Renthal Fatbar 827, with a bend that is specifically suited to the requirements of motocross while boasting superior quality and performance. The proven standard KTM mount allows the handlebar to be mounted in four different positions. A large Renthal bar pad offers effective protection for the rider.

16. KTM works with WP systems to produce the highest quality exhaust systems to maximize engine performance and meet racing sound levels.

2015 KTM 50SX Mini two-stroke.

17. High-Tech Brembo brakes have always been standard equipment on KTM off-road bikes, and combined with the lightweight Galfer Wave discs, they are the ultimate solution in braking technology.

 

DETAILS ON EACH MODEL

450SXF CHANGES: The 450 SXF has proven itself in the main championships around the world. It is the weapon of choice for the Red Bull KTM Factory Race team in the AMA championships thanks to its compact SOHC engine that delivers explosive but controllable power, combined with an agile and stable chassis.

–    A compact 60 hp power pack with a single overhead camshaft and the latest electronic fuel injection, which offers class-leading performance
–    A single overhead camshaft controls four ultra-lightweight titanium valves via extremely rigid rocker arms, which are DLC coated on the intake side
–    Engine speeds of up to 11500 rpm and a three-layer head gasket for durability under the most extreme conditions
–    Bore of 95.0mm with a lightweight box-in-box type piston for low engine vibrations
–    A crankshaft that employs a plain big end bearing and force-fitted bearing shells for longer service intervals
–    A side mounted counter balance shaft that also drives the water pump
–    Electric starter as standard, a clear advantage in the heat of the battle
–    The DDS clutch with Brembo hydraulic system is a compact design that integrates internal damping system
–    Lightweight five-speed gearbox for effortless shifting
–    NEW O-rings on the oil pump suction screen for increased durability
–    Engine management system for a spontaneous throttle response & possibility to change characteristics or read engine data with the available to purchase User-Setting-Tool

350 SXF CHANGES: The 350 SXF never ceases to amaze! In 2013, this exciting machine won another MX1 World Championship in convincing fashion, and dominated the Motocross of Nations. Antonio Cairoli masterfully defeated the competition on-board the 350 SXF thanks to the combination of its low weight, playful agility and a high-revving engine. It enjoys all of the very best characteristics in a package suited to amateurs and pros alike.

The bike features a DOHC engine with lightweight titanium valves and DLC coated followers for a spontaneous power delivery that can rival any 450 on the track, along with a crankshaft that has been designed to increase service intervals. New O-rings increase durability on the oil pump suction screen, and the bike continues its advantage with having an electric starter. A new lighter clutch basket with new clutch springs compliments the CSS clutch with the Brembo hydraulic system for easy and precise control of a 250-agile bike with the power that can match a 450.

–    DOHC Cylinder head with ultra lightweight titanium valves and DLC coated followers for a spontaneous power delivery and 450-rivalling maximum power
–    A crankshaft that employs a plain big end bearing and force-fitted bearing shells for longer service intervals
–    NEW O-rings on the oil pump suction screen for increased durability
–    Multifunctional counter balance shaft, which drives the water pump and timing chain for reduced vibrations
–    Electric starter as standard, a clear advantage in the heat of the battle
–    CSS clutch (coil spring steel) eight clutch plates and a wear free steel basket
–    NEW clutch basket with a weight saving design
–    Lightweight five-speed gearbox for precise, easy shifting adapted for the 350 SX-F
–    Engine management system for a spontaneous throttle response and the possibility to change characteristics or read engine data with the available to purchase User-Setting-Tool

250 SXF CHANGES: Revisions of the engine for 2015 include a lighter clutch basket and new clutch springs for a more consistent behavior under stress and over time as part of the CSS (coil spring steel) one-piece clutch system. The clutch continues to use the Brembo hydraulic system for light operation and controllable modulation. Within the proven DOHC engine are also new O-rings on the oil pump suction screen for increased durability. The 2015 250SXF uses Keihin Engine Management system with electronic fuel injection and a 44mm throttle body, a quality wire harness, lightweight gearbox, and electric starter.

–    Compact DOHC engine with two overhead camshafts & DLC coated followers
–    Titanium valves (intake 32.5mm, exhaust 26.5mm)
–    RPM limit 14,000 rpm
–    Flow optimized ports
–    Forged box-type piston for a low oscillating mass
–    A crankshaft that employs a plain big end bearing for longer service intervals
–    New O-rings on the oil pump suction screen for increased durability
–    Multifunctional counter balance shaft, which drives the water pump and timing chain for reduced vibrations
–    An electric starter as standard, a clear advantage in the heat of the battle
–    Lightweight and compact CSS clutch (coil spring steel) with eight clutch plates and a wear free steel basket
–    New clutch basket with a weight saving design
–    New clutch springs for more consistent behavior under stress and over time
–    Lightweight five-speed gearbox for precise & easy shifting adapted for the 250 SXF
–    Engine management system for a spontaneous throttle response & the possibility to change characteristics or read engine data with the available to purchase User-Setting-Tool.

250SX CHANGES: With enough power to excel on all tracks and terrain, combined with an extremely lightweight chassis, the 250 SX has one of the best power-to-weight ratios in motocross. The unrivalled performance of the lightweight two-stroke engine makes it a true contender against the more complex four-strokes.  For 2015, the clutch basket has been reworked for lighter weight.

Benefits
–    New clutch basket for weight saving
–    Unbeatable power-to-weight ratio
–    Less weight and more agility than the more complex four-strokes
–    DDS hydraulic clutch system for effortless and flawless clutch action
–    Brembo brakes – the very best for motocross.

150SX CHANGES: With a strong engine and a low overall weight, the 150 SX is a formidable competitor on the track. The fun never ends, as the bike retains the agility of a 125 but the power and torque to take the fight to the 250cc four-strokes. For 2015, a new ignition curve improves performance and reduces the potential of detonation.

Benefits
–    250cc four-stroke rivaling performance, low maintenance costs
–    125 agility and handling
–    Never-ending fun
–    Hydraulic clutch
–    Brembo brakes – the very best for motocross

125SX CHANGES: The top performing 125cc two-stroke on the market has been at the front of the field for years. Powered by a high performance two-stroke engine with power valve and six-speed gearbox, the 125 SX remains a favorite among young champions. For 2015 a new ignition curve improves performance and reduces the potential of detonation.

Benefits
–    High performance, maximum fun and low running costs
–    Amazing agility and easy handling
–    Hydraulic clutch
–    Brembo brakes – the very best for motocross

85SX CHANGES: With the most powerful engine in the field and a super lightweight, stable chassis this bike is the ultimate for amateur racing. High-end WP suspension technology is utilized and a reworked cylinder with a revised transfer port for improved reliability has been added. A newly designed swingarm, which is 500 grams lighter, is also fitted and offers optimized stiffness at minimum weight. A new chain guide, chain roller and brake hose clamps are also included on the bike as well as Maxxis tires that offer excellent grip on any terrain.

–    Cutting-edge two-stroke technology combined with a six-speed gearbox and a hydraulic clutch form the foundation of the 85SX’s superiority in all amateur racing series
–    New reworked high performance cylinder with flow-optimized ports and a high precision exhaust control valve provides the engine with its unrivalled performance. For 2015, the cylinder has an improved transfer port for better reliability
–    The crankshaft has a perfectly sized lightweight conrod with minimum vibrations and maximum durability
–    A high-quality chromoly steel frame with a lightweight, bolt-on aluminum rear subframe. The frame offers maximum stability at minimum weight
–    New swingarm for a weight saving of 500 grams and optimized stiffness
–    A standard feature on the bigger KTM offroad bikes is also available on the 85SX; air filter changes are possible within seconds without tools
–    High-quality WP suspension with 43mm upside down forks and a PDS monoshock, which are all fully adjustable
–    New chain guide and chain roller
–    New brake hose clamps
–    High-quality wheels; lightweight CNC-machined hubs are paired with high-end Excel rims
–    New Maxxis tires which offer excellent grip on any terrain
–    High-quality Renthal handlebars
–    Hydraulic clutch mechanism by Formula for an easy and precise clutch action
–    High-quality Formula braking system with lightweight Wave discs
–    New graphic design for striking looks

65SX CHANGES: The 65SX is a fully-fledged motorcycle for young riders aged around 8 to 12 years. This bike defines the standard of its class in terms of power, riding dynamics, equipment and craftsmanship. As expected with all KTM machines, the R&D department continues to develop its minicycle range to give youngsters the very best in terms of technology and style on the track.

–    The 65SX’s engine utilizes cutting edge two-stroke technology and an easy six-speed gearbox
–    New optimized ignition curve for a smoother power delivery
–    High-quality 35mm upside down front forks by WP Suspension, which are fully adjustable with 215mm of travel with outstanding riding stability
–    New high-quality rear shock with a new setting, and now including high and low speed compression damping adjustment
–    New modified frame to accommodate new shock width
–    High-quality Renthal handlebars
–    Hydraulic clutch mechanism by Formula for an easy clutch action
–    High-quality brakes with Wave discs
–    New Maxxis tires, which offer excellent grip on any terrain
–    New graphic design for striking looks

50SX & 50SX MINI: The 50SX and 50SX Mini are true Ready to Race KTMs for young MX riders aged around 4 to 8 years old. These machines are high-quality, racing motorcycles, which are easy to control and have an engine that is distinguished with a steady power delivery, as well as an automatic clutch, which is great for novice riders. The 50SX Mini differentiates by being oil injected to make the first race bike even easier to maintain. These bikes may be small in size, but they are being designed and built by the same engineers that produce our World Championship winning machines in the adult classes.

–    Modern, extremely compact two-stroke engine with superb, manageable power
–    Liquid cooling system, which even cools the crankcase
–    Centrifugal multi-disc automatic clutch of easily manageable acceleration, which can be easily adjusted to the requirements of the track and rider skills.
–    Top quality upside down front forks by WP Suspension and a monoshock linked directly to the swingarm
–    High-quality Formula hydraulic brakes front and rear
–    Like the factory racers, both bikes have super lightweight black anodized aluminum rims
–    New Maxxis tires which offer excellent grip on any terrain
–    High-quality Renthal handlebars
–    New graphic design for striking looks
–    Power reduction kit from the PowerParts program can be added for absolute beginners