They could go back to drum brakes with a cable, I've never had a brake or clutch master leak, 35 bikes, 20 were Hondas, may have had the wrong fluid put in or cleaning solvent or just a bum seal.
I run a Pilot Sport front, Pilot Road rear, no problem but I did have a front 208 that was smooth till I went over a 100 mph then it vibrated, the balance was ok, just a bad tire or it needed to be speed balanced.
I will try that, I'm kinda busy now grinding new teeth into the rear sprocket, seems simple but I'm allso going down 3 teeth and the spacing is a bitch, if your not carefull you end up with teeth real far apart at the end.
43mpg at 85mph, k&n, stock exhaust drilled out to the max, jetted on a dyno and hasn't been touched in 11000 miles except oil changes. 34k on it and it's a 98.
It maybe running leaner, while mine is carbed and a different beast, my XR650R jetted lean makes lots of heat now jetted on the rich side I can't feel any heat unless I sit still for over 5 min, no fan on these. Ignition timing can make a big difference allso. My 2 cents.