We radared 2 of the 96' GTi's doing 51 mph on the dot with one guy on it and my 96' GTX doing 54.5 on the dot with one aboard in flat salt water. If you are talking XLT 1200 then I am thinking 59-62 mph. I have never seen anywhere in Canada even that measures boat or sled speed in KPH. And to the haters, the Ultra likes jumping but is also a few hundred pounds lighter than the average Yamapig or Sea-junk. It also doesn't lose very much in speed with that in mind. The STXR 3 seater is a more "glued-in" style handler that beats the beans and marbles out of everything. Now we have the 3 seater Ultra 250 with a 1500cc supercharged engine cranking out 250HP. But all in all, I think they are all to f**king big these days. We need something like the 96' Sea-doo XP or original Yamaha Blasters to be built again!