Really dumb newbie cyclist question, but I bought a bike mid-summer last year and right at the end of my biking season (September), the chain came loose and fell off twice on my commute home from work. I managed to get it back on, finished my ride home, and then ended up parking the bike for the winter. (I'm a warm weather cyclist) Now that I'm ready to get back out, I'm wondering if this continues, is it something I can fix on my own, or should I take it back to the bike place where I bought it for them to take a look at?
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