More often than not, you are likely to experience a bike chain stuck in the back wheel. This may be due to several reasons, such as a rotated, dirty, bent, worn-out, misaligned, misadjusted, or too-long chain.
However, if it is a new bike or derailleur, adjusting the limit screws too far out can cause the same problem. This is because the derailleur will shift past the last cog, thus throwing the chain and making it get stuck
Also, your chain will most likely get jammed if you have been involved in a crash. Such accidents bend the derailleur or hanger, which tilts the metal towards the wheel and tosses the chain between the cassette and spokes.
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