FRONT FORK
The XC model range features the WP 4CS fork for the second year. For 2015 the 4CS forks are 8mm longer which is the same length as the 2015 SX models. There is a new hydro stop design, new pistons inside the cartridge and there is a new 20N/mm chamber spring up from 18N/mm spring used in 2014. The new setting has been specifically developed for racing cross-country in the US with more comfort and traction and better bottoming reserve. The forks can be easily adjusted for compression and rebound via the dials on the top of the fork tubes.
EXHAUST SYSTEM
The 450 has a hyrdo formed header and an optimized silencer that achieves outstanding performance at low noise levels.
REAR SUPENSION
The new fully adjustable rear monoshock by WP Suspension has been re-valved and set-up to match the new linkage geometry and 4CS fork characteristics. Also for this year, there is a 4mm longer stroke while maintaining the same amount of wheel travel.
FRAME
The improved, modern and lightweight frame design manufactured by WP Performance Systems is made from lightweight, high strength chromoly steel sections. The design for MY 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 (58grams) than the previous cross tube design. For 2015 the bikes will feature the striking Factory orange usually seen only on KTM’s race team machines.
FRONT AXLE, NEW
The front axle has been reduced in size from 26mm to 22mm to reduce weight and offer a better front-end feel. Also with the smaller axle it was possible to move it back 2mm in the axle clamp. The adjusted offset and increased trail provide more stability in rough conditions.
SWINGARM
The cast aluminium swingarm has been developed with state-of-the-art calculation and simulation software and constructed, in terms of design and wall thickness, for minimum weight with optimum stiffness and precisely defined flexibility.
TRIPLE CLAMPS
Top quality CNC-machined triple clamps have been something of a KTM trademark for years. Offering precise handling with maximum performance, they particularly support the flex characteristics and 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 22 grams, while the steering stem bolt is now 8 grams lighter.
FRONT FORK PROTECTORS
The fork protectors have been revised for MY 2015 to be lighter and fit to the new axle clamps. They allow easier access to the fork legs for quicker cleaning and faster maintenance.
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