September 10-13th 2026, Thunder Valley Bike Rally. Get ready for the next biggest and best Midwest old school bike rally in Sullivan Indiana . Four days of awesome music,good ole biker games. This bike rally brings enthusiasts from all around, meet up with old friends,family and meet new friends and have a hell of a time with out the worries.

merchandise vendors, food vendors, bike games, fun run, bike show, adult games, come check out the new adult game stage, beer garden coldest beer around and cheapest.

good people great memories made here.Thunder valley supports and donates to our awesome military veterans and first responders . Veteran own and operated.

mark your calendars and get those vacation days in for the best Midwest ole school biker rally.