Bicycling requires a specific mentality. It demands you accept sole responsibility for your momentum. Wind and incline contradict you. Every agonizing second of that contradiction, pings your resolve. You either respond with a willful decision to move forward or you let resistance stop you. If you don't let it stop you, the willful decision to move forward becomes second nature. Resistance becomes irrelevant.
This is the independent, self-directed mentality that propels cyclists. Its also the mentality that propels entrepreneurs. Unsurprisingly, it is the mentality that drives a cyclist to be an entrepreneur.