Driver of bus improperly passed me on cycle forcing me and an opposing car driver nearly off the road (both travelling at speed on this residential street). Driver repeated the action of 'buzzing' me within inches (state law requires >3 feet). Driver's conduct was not only un-professional and rude, but dangerous and illegal (M.S. chap 169, "improper passing" and "Careless Driving"). As such I may also pursue a summons through the MPLS city attorneys' office. No provocative action (words, gestures, aggressive behavior) at any point to 'justify' this driver's conduct.