Not sure if that is the "best" of what is available, but I loved the PR3's in those sizes on my Thruxton. I got radial tires that looked great, were fantastic in the rain (and dry), and they worked perfectly fine with tubes as well. I thought about sealing my rims, but there really wasn't a place on Okinawa that could do the work. Good luck!I was thinking of trying the pilot road 3's when my stocks run out...and it won't be much longer. Looking at available sizes:
Rear 150/70 17"
Front 110/80 18"
Is that what would be the 'best' of what is available? And that will fit on the stock rims/tubes (I might try to seal my rims and go without tubes...still deciding).
Sorry to spell it all out...been a while since I went with non-stock tire sizes.
Thanks in advance!