The Yerf-Dog Spiderbox 150cc Front Shock is an excellent replacement part for your go-kart's front suspension system. Designed to provide a smooth and comfortable ride, this shock absorber is built to withstand rough terrain and absorb impacts caused by bumps and uneven surfaces. Made from high-quality materials, the Yerf-Dog Spiderbox 150cc Front Shock is a durable and long-lasting solution for your go-kart's suspension needs. Its precise engineering and excellent build quality make it a reliable choice for replacing damaged or worn-out front shocks. With its easy installation process, you can quickly upgrade your go-kart's suspension system and enjoy a smoother, more comfortable ride. Whether you're a casual rider or a racing enthusiast, the Yerf-Dog Spiderbox 150cc Front Shock is an essential component for your go-kart. Mechanical Shock 9 3/4 used on front of Yerf-Dog 150cc Go-karts, can be used on many other applications as well Hole to hole measures 9 3/4" Hole sizes are 10mm