| 摘要 |
A magnetic retarding device for an exerciser including a pair of links each having a lower end to the frame of the exercise, a bracket pivotally coupled pivotally coupled between the upper ends of the links which are arranged such that the bracket moves radially inward and outward of the wheel of the exerciser, a support fixed to the bracket and including one or more magnets disposed in two end walls, the magnets are caused to move radially inward and outward of the wheel when the bracket moves.
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