THE IDEA BEHIND MVP:
Unfortunately many people mis-interpret the Minimal Viable Product as the basic component of the product. So if they were setting up a business to manufacture and sell bikes, they would consider the MVP to be the wheel, after all the wheel is the most basic element of the bike. But to follow the true intent of the MVP, you should build an MVP that tests out your biggest assumptions to ensure you "test small and learn big". Thereby through this process we help you to define a "MVP" which may actually not be a product! As long as it help you validate or learn form the biggest assumptions in your business idea as a whole.

CATEGORISE YOUR RISKIEST ASSUMPTIONS
Either as impacting the Product Market Fit or not impacting Product Market Fit

USING THE TREE OF RISKIEST ASSUMPTIONS TO DEFINE YOR MVP ROADMAP
The Riskiest Assumptions that impact the Product Market Fit should make up the essence of your MVP. Any other Riskiest assumptions (higher up the tree) would need to be resolved first.