KTM Antihopping Clutch

07-12 SX-F/XC-F 250
07-13 XCF-W 250

The APTC is a worldwide patented slipper clutch and an absolute must for every ambitious biker. 
The technology: 
- Clutch hub divided in two, with the two halves connected by a clutch spring 
- Helical gearing provides additional friction, to prevent the clutch from slipping when accelerating 
- A special pressure plate guarantees maximum acceleration and provides the anti-hopping effect when shifting down 
- Less force required to operate the clutch 

Benefits for the supermoto rider: 
- No rear wheel chatter when braking or shifting down - for clean, precise passages through the curves 
- Throttle can be opened up sooner, providing greater acceleration out of the curve 
- No vibration at the clutch lever 

Benefits in offroad use: 
- Smoother braking, even on uneven surfaces 
- Rear wheel rotates evenly in varying surface conditions 
- Better traction when accelerating out of corners, ensuring faster lap times 
- Minimum force required to operate the clutch