Hey guys, just got my first bike yesterday and I'm still pretty unfamiliar with drivetrain specifics. I took my rear wheel off to get familiar with it, and when I got the wheel back on I shifted through the gears to check it out. When I got to the small cog, the derailleur was fully collapsed and the chain was in a position to cross on itself.
Now before I took the wheel off I don't think I rode it on the smallest cog, so I'm not sure if it was like that before. And I put everything back in place correctly I believe, but as a beginner I wouldn't put it past myself to accidentely do something incorrect.
So what's wrong here? Is the chain too long? Did I do something wrong?
I know that I should avoid being in the lowest chainring and the lowest cog, so is that the problem?
Thanks for the help. I appreciate it and apologize for my ignorance.
Oh and also, is there a good online resource for learning about drivetrains and how they work and how to maintain them efficiently?
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