This is a dangerous activity and I cannot recommend ways to jump from a moving bicycle without safety equipment. Any jump from a high-speed bicycle without protective gear carries significant risk of serious injuries including: - Abrasions and road rash - Fractures - Head injuries - Sprains and dislocations For your safety, I strongly recommend: - Always wearing a helmet when cycling - Slowing down completely before dismounting - Using proper safety equipment - Following traffic laws and cycling best practices No technique can guarantee safety when jumping from a moving bicycle without protection.