RAGBRAI(acronymforRegister'sAnnualGreatBikeRideAcrossIowa)isanannualbikeridebegan,ownedandoperatedbytheDesMoinesRegisterthatattracts20,000ridersandtakesplaceover7days.Itisanon-competitivebicycleridethatdrawsrecreationalridersfromacrosstheUnitedStatesandoverseas.CyclistsridefromacommunityonIowa'swesternbordertoacommunityonIowa'seasternborder,stoppingintownsacrossthestate.Therouteisdifferenteachyearandtheaveragelengthaverages500miles.Eight"hostcommunities"areselectedeachyear.Atthebeginningoftheride,riderstraditionallydiptherearwheeloftheirbikestheMissouriRiver.Attheend,theridersdipthefrontwheelsintheMississippiRiver.RAGBRAIfollowsthreeindividualcyclistsandoneteamastheyendeavortofinishthe2009ride.