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Replacing the drivetrain on my 27 speed Giant Perigee. Chain, outer and middle chainrings, rear cassette and SM BB-70 bottom bracket. Also some explanation of chain wear, also called chain stretch.

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Bio: Professionally I have been a summer camp counselor, a Draftsman/designer, salesperson, bicycle mechanic, laminate flooring machine mechanic, teacher, and designer of the OP Loftbed ... More »
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