Prevailaing torque replaces the factory nut for the KLR650 1995 and later. Tired of bending that washer over the nut? Want to change sprockets more easlity? Here's an easy way. The factory nut is a 27mm (1 1/16" wil also work). This prevailaing torque nut uses a 30mm socket, although 1 3/16" will also work. Please torque this (if you have a torque wrench) to 72 ft-lbs, same as the factory specification.