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Possibly one of the easiest way to look up if a bike is a BSO or not is google it or look at where it was bought from. Walmart/Target/Kmart/etc. means BSO. The brand is also easy to tell. Most non-bso's in the US are made by Giant, Trek, Specialized, Cannondale. Some brands are a bit harder since they sell both BSO and non-BSO (e.g. Schwinn, which does ...


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Is the bottom-bracket a cartridge unit? (googling this should give you an idea of what one looks like) If it's not, you definitely have a BSO and you should install a cartridge bb. Look at the hubs. What brand are they? If there is no brand marking on the hub body (or skewer) it's a bad sign. If this is the case, you should probably replace the whole wheel, ...


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It used to be easier to tell BSOs from "real" bikes, but now the technology is changing so rapidly, and it's much harder. On a bike older than about 20 years, one would first look at the frame, in two places: The joints. Better quality frames would be "lugged", with the steel tubes brazed into fittings (called lugs) that secured the joints. Cheap frames ...



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