Do you want your ski turning like it’s on rails? Introducing the first of its kind to production, purpose-built mid sponsons by JCRACING. This performance watercraft product is the best handling improvement you will make to your SXR 800/1100, SXR1500, SuperJet, or aftermarket hull. They even work amazing on the X2, 550, 650, 750 and any other standup ski. These mid sponsons prevent the rear from breaking loose in turns.