Im in love with the Brigestone BT0-16's having come off M3's my self had having had several stes of 2ct's. For the cost and grip these will be around my bike for at least a few sets.
I would go with the 190/55 rear for sure on that R1. If you havn't raised the rear I would look into that also. Depending on your year they are in need of some serious changes to turn properly.
$.02
