Thanks to the innovative formula of KMC GO chain was, the KMC X11SL chains treated with their wax from the factory offer high efficiency and unrivaled durability. The Wax X11SL features a mud-shedding design that’s coupled with hollow-pins, making it one of KMC’s lightest. Don’t spend extra time waxing your new chain at home, buy a KMC pre-waxed chain, skip the mess, and go ride your bike!