I am totally new to the world of bikes and have no clue where to start. Presently, I am 6'3" and 240 lbs). I want a bike that I could eventually ride long distances (100-150k) at a pretty decent speed. I have a decent fitness level too as i can run 5 miles comfortably in about 34 minutes. However, I realize that there could be a lot of differences between bike fitness and running fitness. Especially considering the distances I am looking at will take hours to complete, and the longest i've ever ran at decent speed is an hour. So I am looking at a bike that can take me from where I am now to where I want to be with little modification.
I am still in college, so my budget is kinda limited. Anything over $750 will be too much. So a good value entry bike, or maybe a more advanced one a few years old. I don't know
Thank you so much cause I don't even know where to start or what i'm talking about.