Middle aperture: 22mm High-Quality Material Crafted from durable materials, these grips promise longevity and resistance to wear and tear, enhancing your motocross experience. Chemical-Free With no high-concerned chemicals, these grips provide a safe and healthy riding environment, prioritizing your well-being. CNC Tube Design The FULL CNC TUBE Motorcycle Electronic Throttle Handle offers a precision-engineered design for optimal control and performance. Easy Installation The grips come with a straightforward installation process, allowing you to enhance your motorc performance without professional help. Universal Fit This throttle handlebar is universally designed to fit Sur-Ron Light Bee S X Electric Motocross U, ensuring a perfect match for your ride.