Well I have a K081145 which is the factory size belt, a K081153 which is the one Rob sent me with the PSK and I have a few 8-rib grooved pulleys of various sizes, three 100mm smooth pulleys and two 90mm smooth pulleys so gonna have to do some homework before I say for sure but if CMZ is using two 100mm smooth pulleys and it has the tensioner in the middle where it is applying the right amount of belt tension, that will be the right path to take. Sorry for any confusion with this.

Take care