| 摘要 |
The invention relates to a bottom bracket crank/sprocket assembly for a bicycle. …<??>In this assembly comprising a bottom bracket crank (1), one end of which is designed to be connected to the spindle of the central drive device of the bicycle and which carries a series of sprockets (9, 10, 11) engaging selectively with the chain of the bicycle, the said end of the bottom bracket crank (1) has a hub (22) on which at least some of the sprockets (10, 11) are mounted by means of a keyed coupling. …<??>Application particularly to a bicycle bottom bracket assembly. … <IMAGE> … |
