A bike chain usually slips because the chain is worn, the cassette or chainring teeth are worn, the derailleur is out of ...

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Without a chain you're left with nothing but an expensive balance bike. Here's how to keep yours spotless. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Eric Holte (left) learns to fix his bike with volunteer Michael Benko at Bike Church, a learn-to-repair bike event at Neighborhood Bike Works in Philadelphia. (Kimberly Paynter/WHYY) Neighborhood Bike ...