I've a Hypermotard with 50 mm usd shocks. You think these will fit them?
yes, they will fit. mine went on nicely on 45mm, neoprene will stretch slightly, you should have no problem.
Did you say how long they are?
Length: 14" or 355mm
I assume with this type that you have to remove the forks, right?
that is correct, the long side is stitched together (rather then velcro, that could come undone)