Hello guys I am new to mountain biking and I would like to get started with either a cdale f4 or caffiene f3. I have heard that people have had problems with their headshocks, like how they last only a year and are not as good as spring shocks. Is this true? Also, what do you mean by the headset being compatable with only a certain type of fork? Can I just replace the fork with another brand in the future without replacing anything else? My final question is do these bikes last a long time with not much maintainance? Im still in my teenage years, and I do not have a ton of $ to upgrade/fix/replace. The majority of my rinding will be on trails and roads. Sorry for all of the questions but I want to make a wise purchase.