I would suggest Max Life shoes and TKO bearings on the clutch bell. It provides the highest level of performance with no worries. This is the setup many of the factory buggy racers are using so we tried it on two savages and two Revos. Be real careful with the springs when you install shoes so as to not bend the springs (there is a tool to do this). The best thing to do is borrow the tool at the track if you can find someone.