There are people who can ride bikes on rails. I would not be able to do that. It seems impossible, but I guess they are able to minimize the amplitude of devi

There are people who can ride bikes on rails. I would not be able to do that. It seems impossible, but I guess they are able to minimize the amplitude of deviation from straight to such a low value they can correct tiny deviations with shifting their weight and manoeuvering the front wheel.