Designed for the rigorous demands of motocross. Higher performance, tougher, more resilient and less expensive than aluminum tubes. Will not deform and seize upon a hard impact like aluminum tubes can. No more DNFs due to bent or broken throttle tubes. Proprietary low-friction material provides smooth operation and eliminates galling. No irritating and uncomfortable vibration like aluminum tubes. Manufacturer's five-year crash warranty - If it stops working, due to a crash or tip over, it will be replaced. KTM/Husaberg/Husqvarna 4-Stroke