japans licensing system is so complex and expensive that many riders dont bother to go above a 400cc licence, hence the manufacturers build some scrumptious 250 and 400cc (and tbh 50cc, 125cc 200, 300 etc etc) bikes for their domestic market. these trickle through to us and other non japanese markets and are the reason we got the stunning little imports like the katana 250 and 400, the nc30, the zxr400 and lets not forget that whilst we got stuff like the rg500 and thought we were the bees knees, anyone in the same era who ever saw an nsr250 realised who it was who really got the trick stuff.
