| 摘要 |
A bike inner derailleur has manifold stages of speed alteration, including a flat projecting wheel rotatable to produce angle change, plural control rods fitted on a fix shaft and moved by the flat projecting wheel, and the fix shaft is fitted in a hollow center interior of a wheel hub. Then selecting a rotating angle of the flat projecting hÖwheel may operate to changeover detents of single direction provided in an input route formed between a power input source and a power output source through at least one or more control rods moving horizontally. Further, an intermediate ring is provided between two planetary gear groups, operated to changeover the detents for selecting manifold power transmitting routes. <IMAGE> |
