If you haven't looked, MikeXS has a cafe seat for the 650, not sure how much of a difference there is between the 650 and the 750 tank.

Check it out:

http://www.mikesxs.net/products-17.html#products

looked at it today, in fact. may or may not work (there's a *lot* of difference between those two tanks, in fact) - have to check the measurements if I ever get the 750 tank installed. On that note, any chance you could give more detail on *how* you modified your frame to fit the petcocks with the 750 tank and/or attach a photo of the modded area? I spent another 4 hours tonight trying to find some combination of frame mod and petcock re-configuration that wouldn't put one or the other of the outlets dead center of the frame uprights; complete failure. Out of curiosity, did you go with the 750 petcocks or something else? I'm thinking I may get a second 400 petcock and just run 2 of those - with just a *tiny* bit more mod I can make them work, but I'd rather have the 750 petcocks if I could just get them to clear the frame (esp after the time and effort that went into obtaining the bloody things!).

Thanks!

It Fits! IT FITS!!! far too much hammering and sanding and checking and more hammering and more sanding and some painting later, the bloody tank FINALLY seats correctly (and the seat has been modified to fit behind it until I can get a new one). Photo evidence below.

what I had to do to the frame

the results

you can't beat a bit of kinetic engineering