I've got an ER6N (the naked version of the 650R) and have a Bridgestone BT023 front and BT021 rear. No problems with grip. The 023 is an improvement. Run the book pressures 32 front, 36 rear. I also tour a bit and the mileage is good. Suspension could be improved but if you adjust it to your weight its OK (and not as soft as some bikes I've ridden).