[Long story: TLDR; Chain cracked / broken in 5 places since new, wtf?]
I just bought a 2006 Specialized Crossroads XC Expert. It's my first good bike, but I've come across something I'd consider an anomoly.
I bike around 6 miles a day, to and from work for the last 3 days (since the day I bought the bike). Today, I left work, I heard rear derailleur/gears changing back and forth by themselves. Shruged it off, knowing that a tune up was around the corner for me, anyhow.
2 miles into my 3 mile trip, my chain severed at a link, my derailer arm broke, broke 1 spoke and damaged a few others. Luckily, the local bike shop fixed me up in less than 30 minutes. The bad? They fixed the major problems, but didn't look for any other issues. When I got home, I found 3 more cracked chain links . I see the one they fixed, I also see a previously fixed one (slightly patinaed).
I'm guessing this chain is original equipment; I'm really shocked this can happen this much.
So, along with my question, any comments are welcome.
I'm concerned, because the damage was relatively light this time, (no frame or other scratches) and I was only a mile from home.
Is this normal? Is it time for a new chain? Should I be getting a better chain? Should I be concerned? Is this preventable?
Thanks for your time.