Where is cycle Yoshida? Google map available? Thanks in advance.....Anything your LBS sells should be fine, must of us end up with Ostrich bags. Some types you leave the rear wheel on (quick bagging/unbagging, but big parcel on the train and bag is larger/heavier), other types you take both wheels off.
These are on the Yoshida site, but you can pick them up at the LBS, too: