man sounds like the track wasn't to nice to you. i managed a new pb as well last weekend and my 26" tire are definitely needing to go. went 12.9 @ 108. 28" tires are on the way kept running out of gear in the last 50-70ish feet. i gotta stop messing around an install this dang stall already.
Did you get any data logging in to see what was causing the bog?