Constant tension hose clamps... | Cleaning, Oil, Maint.

These have been discussed before. Blrfl was the author of several posts. You might also consider the heat shrink hose 'clamps' made by Gates that both @SupraSabre and @Bmacleod have used.

Read This thread on the constant tension clamps, and another one on the clamp sizes. Here is some stuff on the heat shrink style.

When I asked Bmacleod about his experience with the heat shrink type, here is what he wrote:
"Just touching base with the information you asked for. I got the Gates part# . I asked for the and received parts that said on them, even though the receipt said . Not sure what is up with that but they were the correct size. They were simple to install and really seem to grab tight. Once they are shrunk to size, they are very hard, like plastic. I was expecting a more rubber-like texture. I like them and think the technology makes sense, but I am not sure I would use them again, only because they are a one-time use. If I have to remove one, I need to buy another. Who knows, they were easy to get... went to my local jobber in town that carried Gates products. $5.00 a pop. Sorry it took so long to get back to you... I wanted to take the bike for a ride to be sure there were no leaks to report to you that they do their job and with the crappy spring we've been having, I just got out today for my first ride. Hope this info is useful."

I have used some of the first type you pictured (top pic), and yes, they take more than a little planning ahead to make sure the big spring does not run afoul of nearby parts. In fact, I had to pull the fairing off to move a couple of them. I understand that they can all be made to fit simply by judicious positioning of the top spring/screw/tensioning mechanism - even behind the stat housing in the vee of the engine. And at least a few guys who have used them on all of the hoses have reported no more leaks after some years. Note that Blrfl's original comment about 45 in lb being the torque for these might be wrong. I've read in other threads that it is 90 in lb. That seemed much too tight to me, so I backed mine off to around the original post's 45. You can search for other threads here using 'gates clamps', 'hose clamps', and 'coolant leaks', etc.