In which gear is it harder to pedal: a small rear sprocket or a large rear sprocket? Why?
A 21-speed bicycle has seven sprockets at the rear wheel and three at the epdal cranks. In which gear is it harder to pedal: a small rear sprocket or a large rear sprocket? Why?
Small rear sprocket is harder to pedal because you are making the wheel turn more revolutions with the same amount of travel in the chain.
David Hembrow, Basketmaker. Making a large bicycle basket.
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