Virginia Creeper Trail Club and vacreepertrail.us are two good sites for information about the trail that runs from Abingdon to White Top.
My dad just bought himself a bike. He went to a bike store and said he wanted a bike for a grandfather who wanted to ride with his grandkids. They sold him a funky looking machine that he's anxious to try out. So, I expect that sooner or later we'll take a ride or two.