Help with slow dune climb by RR | Nov 24, 2016 | RZR XP Turbo | 0 comments I was going up comp at Dumont 45/50 mph and all the sudden more or less it slowed down to 40/35 . It slows at the top .. what do you guys think ?? Boost or clutch?? Or ???Help Sent from my iPhone using Tapatalk Utah RZR Rentalswhence Submit a Comment Cancel replyYou must be logged in to post a comment.