When you go faster, your trucks are more responsive to each movement you make. The “speed wobbles” you experience are a result of this. If you cannot control your board at faster speeds, part of it may be due to inexperienced riding. It’s dangerous to ride your board this way as you can be thrown from your board when you lose control. We recommend you begin with flat, paved roads before transitioning to and downhill terrain. Alternatively, you may be experiencing speed wobbles because of soft bushings or a loose back truck. Become familiar with all components of your board prior to riding to prevent any injuries or damages.