I have an '09 X2, the stock prop is now OJ - 14.75X15.5. Prop works very well when weighted for boarding and surfing, top end suffers some, best I can get is about 42mph unloaded, down hill with a tail wind, lol. WOT will be about 5000 RPM with the MCX. I would like to try the new 5 blade from OJ next to see if I can improve fuel eco.
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