We often get questions on bicycles.stackexchange about identifying a bicycles manufacturer, model, make, and year. Often these questions are downvoted or closed -- usually with a comment attached to them that it's not necessary to know the exact model/make/year of a bicycle if you want to fix, repair, or ride your bike.
Why should owners not care about the model/make/year of their bicycle?
Especially when it comes to less expensive bikes (aka BSOs) and BMX bicycles?
This is intended as a canonical question that we can point closed questions to.
Also see
- How can I tell what year my bike was made?
- What is the purpose of a serial number? (generally not helpful for identifying a brand/model)