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Published on Jan 20, 2008
Bicycle derailleurs may need to be adjusted if the bike if having problems with the chain not properly engaging on the back cog. Adjust bike derailleurs by hand, or with a Phillips head screwdriver, with help from a former BMX and collegiate racer in this free video on bicycle repair.
Expert: David Lyell Bio: David Lyell is a former BMX and collegiate racer, mountain biking maniac and touring enthusiast.