I had the honor the last two days to volunteer at a downhill mountain bike clinic for disabled folks at a local event called the No Barriers Summit. I have been volunteering for the cycling programs at our local adaptive sports center (and been loving it) and since the summit was local this year, was excited to help out with a bigger clinic. Look at the photo gallery at the link below. The amount of joy these folks exhibit is overwhelming. Yes, these bikes are seriously fun.
Here's the article.