Supercharger Drive belts are a critical part of your Jet Ski. Choosing the best belt is important if you do not want any down time. OEM used to be the best until they changed to a belt manufactured in China. Now that this has changed, the Aftermarket is a better option. KP has now introduced the ABSOLUTE best belt on the market! This is the same belt used on the Ultra 250/260’s. This belt would typically last more than 200 hours if properly maintained. It is called a High Modulus anti slip belt. This belt has a woven heat and slip resistant textured outer layer, with high tensile chords, with an anti water and oil slip inner rib, for maximum grip in some of the most extreme conditions. Leave it to KP to give you the very best!!