I bought a Nelson-Rigg MC-902-04-XL Navy X-Large Deluxe All-Season MC-902 Motorcycle Cover for my Kawasaki Vulcan 900 Classic, and it did not fit. X-Large size was too small.
My motorcycle measures:
L: 97", H: 56", W: 38".
It is slightly more in height and width than recommended by Nelson-Rigg...