ABOUT BDX PERFORMANCEBDXP is the leading USA technical expert in the Chinese vehicle off road market. Our engineers and technicians have helped thousands of people in the past twenty years keep their vehicles running. We have a full machine shop where we manufacture performance parts and engines to get maximum performance out of your vehicle.DESCRIPTION This front shock features softer spring rates that offer a much more comfortable ride for the user, along with a 4-way adjustable spring preload. The bolt-in installation process takes just minutes and requires absolutely no modifications. Depending on stock availability, the springs may come in red, black, or chrome. We guarantee a perfect fit with dual rate, oil-dampened springs that include progressive rate springs to resist bottoming out over rough terrain.The 12.75" Go-Kart Front Shock is designed for use in 150cc, 250cc, and 300cc go-karts, offering superior shock absorption and handling performance. This front shock features a durable steel construction with a spring-loaded design, providing smooth suspension and enhanced stability even on rough terrain. Its 12.75-inch length ensures compatibility with a wide range of go-kart models in the 150cc to 300cc range.GUARANTEED FIT FOR THE FOLLOWING VEHICLESYerf Dog Spiderbox with the BDX lift kit.Carter Brothers Buggies and Go Karts American Sportworks Buggies and Go KartsTrailmaster Buggies, Go Karts, UTVsPolaris vehicles #201023010All Hammerhead Go-Karts, Buggies, UTVs 150cc, 250cc, 300ccHammerhead Mudhead rear shockFits many other 150cc buggies and go-karts (see specifications)  Measured center hole to center hole for fitment.SPECIFICATIONS10 mm internal diameter eyes on both ends12.75" center-to-center length.Mounting ends width 3/4"