My Road bike pedals locked up tonight. Why? I was riding my road bike and my pedals locked up and I couldn't spin anymore. I got off the bike to check the gears and chains and while fiddling with them I heard a loud POP and my rear tire popped and kind of tacoed the bike rim. Why did this happen? What did I do and what can I do to prevent this from happening again? I am new to road biking and I absolutely LOVE it!! I just want to learn more so I can no have the fear of going farther away from my house than I can run home!
If you didn't notice any broken spokes, it could have also been that the bead of the tire popped off the rim and caught on the brakes, preventing the wheel from moving and then ultimately dragging on the ground causing a blowout and maybe warping the rim.  Once the tube popped, it would no longer be pushing the tire in to the brakes and allowing your wheel to spin freely again.