That aside, trams particularly make getting to and from the central area pretty straightforward. Tickets cost 2.60zł for a single journey ticket. Note that a single journey means a trip on one tram or bus not a point to point journey. One hour tickets cost 3.60zł and an all-day ticket 12zł. Note that there are no concessions for foreigners. The fine for travelling without a valid (or validated) ticket is 130zł. Plain clothes ticket inspectors travel the lines and regularly ask to see your ticket. They are obliged to identify themselves.
Public transport in Bydgoszcz is awesome. The only problems you may run into is all information is posted at tram and bust stops in Polish only. Also Bydgoszcz has come up with a new pass that can be purchased but you must have a PSAL which is some kind of Identification number for Poles only