It's been two years since my surgery and ride a Harley TriGlide on a regular basis. Talk about
vibration! There's nothing like 103 inches of American Iron trobbing between your legs! (I'm talking about
the Harley, you perverts!)
Based on when I had my surgery, and putting the bike away for the winter not long thereafter, it was probably about 8 or 9 months until after my surgery until I rode the hog again. Fortunately for me, I had no issues with pain or leakage.
I will add that it wasn't until about three months after my surgery that I was able to go pad-free.