Re: 190/55/17 or 190/50/17 rear tires
here is my take on it... theoretically the taller rear tire will make it turn in quicker like stated above, but, I think of it like this... the manufacturer has set the bike geometry for a reason. the rake and trail and tire sizes are a certain size for a reason, and for the msot part thats what i stick with. especially for street riding. i may have different advise if you were gonna be on the track. On brand, it appears to be preference as long as you stick with a "big" brand. I am not a huge fan of the Dunlop tires. I jsut got pilot power 2ct for my k5 but have 0 miles on them yet. have bridgestone battle ax 016 on my 93 750 and those grip pretty good.
Double bubble smoked screen, Goodridge braided SS front and rear brake lines, Galfer rear wave rotor, Galfer HH sintered rear pads, Yoshi slip on, Yoshi frame sliders and swingarm spools, exhaust servo removed, pair removed, PCIII, SpeedoDRD, OSF adjustable rearsets. GPR V1 damper