Looking at the 607s for a more street oriented ride. Will these work for the KLX400SR? They aren't tubeless are they? What size tubes do I need for this bike? I noticed that the 607 rear tire is a trailmax is this an okay tire? Should I just go with the 606s ($50.95 and $52.95 at www.accwhse.com/dunlop.htm)? Thanks for the help.