| 摘要 |
A bicycle exerciser including a base frame, a seat post connected to the base frame, a seat disposed on the seat post, a front stem connected to the base frame, a handlebar disposed on the front stem, a flywheel connected to the base frame pivotally, a chain guard casing disposed on the base frame, and a pedal connected to the chain guard casing wherein the bicycle exerciser is adjusted by a sectional adjustment device in order to control various sectional resistance of a flywheel.
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