UTV 170 World Championship by RR | Feb 20, 2017 | RZR 170 Specific Disccusion | 0 comments Does anyone know the rules for this event? Looking at the results from last year, it appears there was a 250 Class and a 170 class. I can’t seem to find the rules for this years event. Who’s going? Utah RZR Rentalswhence Submit a Comment Cancel replyYou must be logged in to post a comment.