There are several nationwide courier services that provide oversized luggage shipping and specialized bike deliveries. Kuroneko Yamato, Seino and Sagawa are the main courier services in Japan with differing levels of service when it comes to shipping bikes. Generally, you'll need a bike box for shipping but Seino do provide an option to buy a large cardboard box or rent one. Some bike shops are happier than others to give large boxes away but there is no harm in asking. More information on our RBRJ Delivery Service here.