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08-15-04, 09:47 PM
First of all, I am a runner just getting into mountain biking. So please forgive me for sounding like an idiot with my bike terms. I just bought a trek 6700 off of ebay and assembled it myself, not really knowing what i am doing. So this could be why the chain is loose. It just gets loose when I change gears to where the chain switches to the smallest front sprocket. My rear derailleur is not creating the proper tension. Can anyone help me, or do i need to got to shop for tune up. Thanks, spencer