i would recomend dunlop sportmax qualifiers if you can get them in the right sizes i will be looking for mine, a friend has them on his cbr6 and the grip is amazing, also on the last post, is it ok to fit different sized tyres like that i always thought you had to get the right size??
The diameter is the same because the 60 series tire is a lower profile than the 70 series. The rim width is within the acceptable limits for the 150-60 tire. The new tire is 10mm wider so that is 5mm more on each sidewall. For sure that doesn't give any clearance problems. It works great. I definitely wouldn't go as wide as a 160 but the 150 is fine. I have not tried a wider front so I wouldn't comment on that.