I have an old bike it says Via Montega on the body if that helps. I was riding it earlier when the pedaling stopped resulting in forward motion.
I thought the chain might have come loose but it is definitely where it is supposed to be. The chain is attached and will shift gears but the back wheel doesn't turn. The wheel does spin freely if pushed. It seems like the gears and the wheel aren't connected but there is some sort of plastic guard between the gears and wheel so I can't see the problem.
Is this something I can fix myself with limited to know bike repair knowledge or do I need to take it in?
If so how expensive is it likely to be?