those that can run a 180 rear

[fjfool]

wow $150 shipped for the pair!

http://www.bikebandit.com/tires-tubes/motorcycle-tires/pirelli-diablo-supersport-motorcycle-tire-set?b=4169629&utm_source=Criteo

[FJmonkey]

I run a 180 rear in the Conti Motions, but a 180 in the Dunlop Q2 hit the chain (17" x 5.5" wheel). So it all depends on the actual width of that 180 Pirelli.

[Pat Conlon]

See? 

Eric get's it... The value of the 17" rim conversions. Like getting the 2nd tire free.

You could spend $150 just for a 150/80-16 back tire: http://www.bikebandit.com/tires-tubes/motorcycle-tires/metzeler-lasertec-motorcycle-tire

[X-Ray]

I know the 180 Pirelli Angel GT has no clearance issues, but it is so hard trying to get actual widths from tyre shops on different brands before you buy.

[1tinindian]

I run a 180 rear in the Conti Motions, but a 180 in the Dunlop Q2 hit the chain (17" x 5.5" wheel). So it all depends on the actual width of that 180 Pirelli.

This is what I have found, also.
I really like the Q2, but alas, the 170/60/17 Q2 that fits just right, has been discontinued by Dunlop.
And the new Q3 does not come in the 170/60/17 size.
I just bought two Q2 170s at a close out, only wish I could have bought more of them before they are gone.
I paid $177 for the pair, too!

Leon