I had a total knee replacement just before Thanksgiving last year. Left knee. Yesterday was my first ride on the Aprilia since the surgery. Very successful surgery I might ad. I'm still "tight" in the left knee and I used the ride to help "exercise" the knee. I'm not really very fast but I'm learning and having to remember not to ride "over my head"
. That's actually a pretty good reality but the Aprilia seems to me to be pretty capable and forgiving if your not just a total ass and too far out of shape.
I've ridden the Rocket several times and with the floorboards it's quite comfortable. Hope your bike is not having anything too major being done.