This sounds interesting. I'd love to join in! I'd have to procure/hopefully borrow a bike and I'd probably find a humble beater. Will you guys be rocking slick road rigs? I'm getting soft on the ROK so it'd be nice to spin out a few hundred kms, in prep for some tours in the future. It'd be a haul though, when I do the trip on the olde autobike, Changwon to Seoul on non expressway roads was about 500km. I assume its about 5-600km Seoul to Busan which is pretty intense for 2 days.