The Gpz does have threaded holes in both master cyl's. Thread is identical to that of a brake banjo bolt. Question is what is the thread on these mirrors... Hello Jerry, Wednesday, May 9, 2007, 9:42:35 AM, you wrote: > Do you guys think these mirrors will fit our post holders? > ebay: 260115171205 -- Best regards, Julian mailto:jsolo at solo-tek.com