前轮上有脚踏板的早期自行车。
Any of several early bicycles having pedals attached to the front wheel.
但是也可以通过在前轮上安装电动机来实现四轮驱动。
But motors could be fitted to the front wheels as well to provide four-wheel drive.
本实用新型涉及一种防滑器，尤其指自行车在冰上骑行时，在车前轮上的防滑器。
The utility model relates to an anti-skid device, particularly the anti-skid device arranged on a front wheel of a bicycle when a rider rides the bicycle on an ice.
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