The Kurt's team has done extensive testing with the gear down kit using the stock clutching and the Kurt's Polaris performance clutching.
FYI... so if your on a tight budget this year. You can use the gear down kit with the stock clutch configuration but will not see the full potential of this system without changing clutching as well.
NOW if you choose to change your components one step at a time. Then you will find the belt temps not being decreased and running as cool with stock clutching as is achieve with the Kurt's performance clutch kit. With stock clutching you'll also find the responsiveness and back shift abilities of your clutching not being the most optimal combination for peak performance.
Just remember the secondary clutch is a torque sensing unit. When gearing down the drive train your making the system much easier to respond throughout track load variations and terrain changes.
We wish you all a very Merry Christmas and Happy New Years....