I'm not sure what to call it. Biking meditation. Bike yoga. Meditation in motion. Meditative biking. Maybe just mindfulness meditation while biking.
But I know something happens on my bike. Riding by myself, unplugged, no earbuds, outside in nature feels good. It relaxes me. It helps me let go of concerns about the future or past. If I have a problem I've been trying to solve, I often arrive home from a ride with a solution. Especially if I was not trying to solve the problem.