Yup!
One of the very few things I can no longer do is ride a motorcycle. While I certainly could install a Kliktronic (would allow me to change gears with my thumb instead of my left foot), the bigger challenge is that I can't articulate my left knee with mere brain/muscle movement. I'm an above knee amputee, about the middle of my thigh, so there's no easy way for me to put my left foot down when coming to a stop, put it up on the peg when taking off, nor for the (computer) knee to even know whether I was taking off or coming to a stop anyway.
But, it is what it is. There certainly could have been far worse outcomes from the vehicular assault as well as the subsequent errors made during surgery, but I stared death in the eyes not once but twice in ~2 days and kicked its ass. When you had to make your own tourniquet with the $10 Walmart rain jacket you were wearing over your full leather race gear because nobody who was mulling around the wreckage would help you, you consider yourself blessed to still be here, so having to give up riding motorcycles as one of the few concessions is OK by me.