i was thinking this one as well when i read the post...just take a marker and mark your tire to your rim..... then do your holeshots and get off and take a look at your marks....if they arent lined up then you know your beads are slipping on the rim.mikemike said:Check Pressure. Also one of the rear wheels may be slipping. This is hard to see but it happend to me. If the bike is going right it may be your right tire is slipping on the bead. The left one is pushing the bike right. You will need someone to look at it while doing a holeshot. You may want to reseat it anyway.