DPT903 | 903 Pro Tuner kit Fully Adjustable weight kit 600R/850 PDrive Primary Clutch

43.8–52.2g. The 903 Pro Tuner kit is a lighter base weight (43.8g) for those requiring this Gram range. We have had requests for a lighter Gram base weight, mostly for 600 applications. This one could be used on 600R or some 850 applications that may not require as much weight as the 902 kit.