It fit great. The flag now has 2100 miles on it and looks new. I covered the mount with double stick tape so it would not slide around and works great. Be sure to have some locktite for the screws though.
I wish these were longer. And at first I wasn't happy with them because of others ratings. The tie leather broke on one but it was long enough to use anyway. And after being on for a week I do like them even though they are a little short 12 inches as advertised . Maybe 18 inches long would be more to my liking.
I use this holder all the time. My 40oz Hydroflask fits perfectly in this holder which is mounted on my left side saddle bag guard rail. If you want ice cold water on a 100 degree day do yourself a favor and get a Hydroflask. I fill it halfway with ice and then fill it with water. Mine has a flip up mouth piece. I can easily grab it and take swig at any time using one hand. The only time I don't use it is when my wife is riding with me because she said it hits the back of her calf. That's when I put the Hydroflask in either saddle bag or tour pak.