READY TO MOTO!
Researched, engineered, raced and proven, beyond doubt, KTMs
incredible new 250 SX-F achieved seven
125 Supercross wins in its North American debut. KTMs 250 four
stroke sets a new standard in the 125 class. It, along with
the entire line of KTM SX models represent the industrys most
comprehensive and competitive line of Ready to Race
motocross, supercross, and arenacross models. |
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KTM 250 SX-F
13,400 rpm max
39 hp @11,000 rpm
Titanium valves minimize oscillating masses
Finger follower levers optimize gas flow |
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KTM 250 SX-F
Intermediate gear reduces cam chain length
Hydraulic timing chain tensioner insures maximum
precision of cam timing |
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KTM 250 SX-F
Inclined magnesium
cam cover allows easy valve access |

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KTM 250 SX-F
Optimized balanced
crank shaft, no
balancer shaft =
minimal weight,
friction and vibration |
KTM 85 SX
New spoiler design = improved ergonomics
New oval lateral tube frame, forged shock tower = increased
stability
New 4mm rear brake disc = increased heat resistance
Rear master cylinder with improved protection = less damage and
greater safety
Crank shaft with new balancing and new bottom end bearing =
reduced vibrations and better reliability
Gear box with reinforced 3rd to 4th idler gear = improved
reliability
Strengthened water pump wheel = better heat resistance |
SX CHASSIS
Cast swing arm = improved stiffness and appearance
More progressive fork setting, friction optimized coating, new
bushes = less friction and improved function
PDS shock with new oil flow, optimized setting, new design for
bump rubber = increased bottoming resistance
New frame for 250 SX, steeper steering angle = more stable
cornering |
KTM 125 SX
New cylinder, ports and optimized power valve flap and flange =
identical to 04 GP engine
New V-FORCE 3 reed valve body = improved intake
New 6 speed gear box
New 16 bit CDI processor and ignition curve = improved
performance
New power optimized exhaust pipe and silencer = better power
delivery
Re-designed clutch = less weight and improved reliability
New crank case = improved bearing seat and counter shaft bearing |
KTM 250 SX
New power valve flap, timing, main spring and modified cylinder
= improved bottom power and smoother delivery
Re-designed light weight piston = better performance, less
vibration
Smaller PWK 36 AG carburetor = better throttle response with no
loss of peak power
New gear box (2nd gear ratio) = smaller step to 3rd gear
New 16 bit CDI processor and ignition curve = improved
performance |
KTM 450/525 SX
New FCR 41 carburetor and intake = improved engine response
Stiffer crank shaft on 450 = improved reliability
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