for more torque and more power SX525 00-06 EXC 450/525 00-07 Les mer

KTM is proud to present you one of the biggest innovations in Offroad sport! The Rekluse automatic clutch! The advantages in short: increased traction, relaxed and controlled riding also on longer trips under difficult conditions, less "armbump", no more "killing" the engine possible. Perfect control of the traction by the trottle. Without wasting a thought on the clutch you can fully concentrate on the track. Due to the soft opening of the centrifugal clutch in lower rpm's, you can not kill the engine and additionally the the traction inceases dramatically. The bike dig's on and on, with that help even extrem steep ramps becomes to childes play! Optional you can mount the handlever 78013900000 for the rear brake, that brings additional control on difficult downhills. We gave the clutch also some very experienced offroad pilots for testing, with the result that no one wants to miss it in the future! Les mer

KTM is proud to present you one of the biggest innovations in Offroad sport! The Rekluse automatic clutch! The advantages in short: increased traction, relaxed and controlled riding also on longer trips under difficult conditions, less "armbump", no more "killing" the engine possible. Perfect control of the traction by the trottle. Without wasting a thought on the clutch you can fully concentrate on the track. Due to the soft opening of the centrifugal clutch in lower rpm's, you can not kill the engine and additionally the the traction inceases dramatically. The bike dig's on and on, with that help even extrem steep ramps becomes to childes play! Optional you can mount the handlever 78013900000 for the rear brake, that brings additional control on difficult downhills. We gave the clutch also some very experienced offroad pilots for testing, with the result that no one wants to miss it in the future! Les mer

Big Bore Kit , for more torque and more power

jetting :
idle jet: 42
jet needle: OBETP - 5th position from top
main jet: 168
leak jet: 70
air screw: 1,5 turn open
pump spring: green (SXS08250030)

Carburator jetting for stock and Akrapovic exhausts! Les mer

The bigger waterpump will increase the flow rate which is reducing the water temperature. Can be used on 450/505 SX-F only together with Akrapovic headers. Les mer

Its needed for the use of the X2 light! Very useful for fan usage and heated grips for example. Les mer

KTM is proud to present you one of the biggest innovations in Offroad sport! The Rekluse automatic clutch! The advantages in short: increased traction, relaxed and controlled riding also on longer trips under difficult conditions, less "armbump", no more "killing" the engine possible. Perfect control of the traction by the trottle. Without wasting a thought on the clutch you can fully concentrate on the track. Due to the soft opening of the centrifugal clutch in lower rpm's, you can not kill the engine and additionally the the traction inceases dramatically. The bike dig's on and on, with that help even extrem steep ramps becomes to childes play! Optional you can mount the handlever 78013900000 for the rear brake, that brings additional control on difficult downhills. We gave the clutch also some very experienced offroad pilots for testing, with the result that no one wants to miss it in the future! Les mer

KTM is known for the high performance level of the 250 SX-F engine. One more highlight for KTM was the 2008 GP season, which was clearly dominated by the orange machines made in Austria winning the MX2 world championship with Tyla Rattray. Les mer

Radiators
» The special KTM factory radiators with enlarged radiation surface and better efficiency includes hoses and radiator protectors to keep the race engine cool to assure highest performance in every condition. Les mer

Clutch assembly
» When it comes to clutch nearly all factory teams mount components made by the American clutch specialist HINSON. Machined basket and inner hub, pressure plate and a special disc package stand for very precise control and maximal reliability.

Clutch cover
»Includes a machined clutch cover, which offers increased strength and gives a factory bike look.
Les mer

Radiators
» The special KTM factory radiators with enlarged radiation surface and better efficiency includes hoses and radiator protectors to keep the race engine cool to assure highest performance in every condition. Les mer

for more torque and more power Les mer

for more torque and more power, jetting must be not changed. Les mer

CNC machined cover with the factory look
450/505 SX-F Les mer

CNC machined cover with the factory look
Les mer

CNC machined clutch cover with factory look .

Les mer

CNC machined, less mechanical wear
Les mer

CNC machined, less mechanical wear , better response of your clutch
450/505 SX-F Les mer

Easy needle removal . all keihin carburators Les mer

Add some “bling” to your KTM powerplant. Covers are constructed in aluminium and they look great! , EXC-R 450/530 Les mer

Increase performance of the acceleration pump indicating a better response of your engine , for keihin 4-stroke carburators Les mer

CNC machined cover with the factory look , 1 piece
450/505 SX-F



Les mer

This anti-hopping clutch is a must for any ambitious rider.
Everyone knows about rear wheel hopping: heavy braking in a curve can lead to unnerving shuddering at the rear wheel.
Experienced riders overcome this problem on hard terrain with a gentle pull on the clutch lever, thereby reducing the transmission of this force to the rear wheel.
Resourceful engineers have now come up with the solution: the anti-hopping clutch.
The APTC is a worldwide patented slipper clutch that features a unique hub consisting in two parts connected by an helix profile.
This complex mechanism using angled layers for additional friction was developed to prevent clutch-slippage: under engine-load this system generates additional pressure on the clutch plates, but when over-running the clutch is able to slip.
The power torque feature of the APTC guarantees riders maximum rear-wheel grip during acceleration and anti-hopping during downshifting. By maximizing rider control, the APTC allows for greater speeds going into and coming out of turns.
This design, unlike all other slipper clutches on the market, makes it also much easier to pull the clutch lever (~50% less pressure is required) and eliminates clutch lever vibration, helping the rider saving a lot of energy and sparing himself the discomfort of a cramped forearm.

Les mer

This anti-hopping clutch is a must for any ambitious rider.
Everyone knows about rear wheel hopping: heavy braking in a curve can lead to unnerving shuddering at the rear wheel.
Experienced riders overcome this problem on hard terrain with a gentle pull on the clutch lever, thereby reducing the transmission of this force to the rear wheel.
Resourceful engineers have now come up with the solution: the anti-hopping clutch.
The APTC is a worldwide patented slipper clutch that features a unique hub consisting in two parts connected by an helix profile.
This complex mechanism using angled layers for additional friction was developed to prevent clutch-slippage: under engine-load this system generates additional pressure on the clutch plates, but when over-running the clutch is able to slip.
The power torque feature of the APTC guarantees riders maximum rear-wheel grip during acceleration and anti-hopping during downshifting. By maximizing rider control, the APTC allows for greater speeds going into and coming out of turns.
This design, unlike all other slipper clutches on the market, makes it also much easier to pull the clutch lever (~50% less pressure is required) and eliminates clutch lever vibration, helping the rider saving a lot of energy and sparing himself the discomfort of a cramped forearm.

Les mer