Didn't you already post this? If you look at the BDM site it list different numbers for the two frames. I originally had an RT frame and when I broke it BDM replaced it with the BDM frame that is supposed to be like the DT. The seat fits but not as tight.
Thanks, I've previously asked about a custom seat. I found a used one that is reasonable but i didn't know if the two were compatable. I'm told that after 2006 BDM made their own frames.
DT seats are longer and narrower. The fender struts are even differant. If you put a rt or bdm seat on a dt they will not come all the way up to the tank.