>>1556548>SteelBum-tier. Identical frame might cost $50 or $5,000 depending on whether it's being sold by walmart or hipsters. Heavy and rusts but will take a beating. Easy to bend but hard to break, which means you'll have many safe years of riding your shitty hobo bike with bent rims, fork, and frame.
>AluLight and stiff. Hard to bend, but when it does it's probably fucked. Less resilient than steel but more than carbon. The default material for "good" bikes.
>CarbonVery light and very expensive. Tougher than metal except when it isn't. Good at dealing with normal bike-riding stresses but terrible at handling anything else. Overtightening a bolt can total the frame. If you ever accidentally whack it against the wall you'll spend the rest of your time riding that bike knowing that the next bump you hit could be the last. Defects can be invisible until your bike suddenly disintegrates underneath you at 25mph.
