I tried to ship my bicycle to Kansai (from Tokyo) so that I can have a weekend biking tour in Kansai. When I took my bicycle to Kuro-neko, I found out it needs to be in cardboard box!!?? so, a regular bicycle carry bag isn't sufficient!!?? Anybody can give me some advice how to ship the bicycle within Japan? through which carrier?? around what cost?? Thank you very much!!