This is a common question whenever I publish the weight of a folding bike. This started out as an ‘authoritative’ post on why folding bikes are so heavy, but to be honest I’m not exactly an expert in the field. I think they’re heavy because they have thicker tubes because they lack the triangular geometry of traditional bicycles. Is this the case? Or is this true only for the less expensive, under $1000 folding bikes that I’ve actually tried? Can you get a lightweight, good quality folding bike for under $1000?