I want to put a set of PR3's on my 2001 K1200LT. The front tire is no problem, but they don't make the recommended rear tire size of 160/70-ZR17. I was hoping to get some feedback here if one of the sizes listed below is a suitable alternative and why.

150/70ZR17 (69 W)
160/60ZR17 (69 W)
170/60ZR17 (72 W)
180/55ZR17 (73 W)
190/50ZR17 (73 W)
190/55ZR17 (75 W)
160/60ZR18 (70 W)