Originally Posted by
JanMM
One of the many contributing factors to the boat-anchor-heavy weight of my first 'adult' bike, a '70's Schwinn Continental, was the one-piece crank. A pound here, a pound there, and all of a sudden you have a heavy bike. (Still riding relatively heavy bikes.

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In reality there's nothing wrong with riding 'relatively heavy bikes'. Personally I ride mainly for the workout, so when I hear someone call a bike a tank because it isnt made of carbon or aluminum I just figure they're too out of shape to ride it.