I found a variety of spots, including the below stating that the stock length is 320mm.
https://www.solomotoparts.com/Ohlins...ja-250R-09-11/
However, I then found this article that would suggest the length is only 315mm.
https://faq.ninja250.org/wiki/Instal...k_on_a_Classic
I tossed my stock shock, otherwise I would have measured it. Does anyone have one they could measure? If Ed truly has me at 9mm longer than stock, I could see why my forks are so low...