Bottom bracket transmission with a planetary design for a bicycle or a pedelec

Abstract: a bottom bracket transmission with a planetary design for a bicycle or a pedelec () includes a pedal crankshaft (wan), a transmission output shaft (wab), further shafts (w w w w w w w), and a first transmission shifting group () and a second transmission shifting group () coupled together for implementing a plurality of gears (g g g g g g g g g g g g). the first transmission shifting group () includes a two-stage stepped planetary gear set (strs).

Inventor(s): Stefan Beck, Michael Wechs, Fabian Kutter, Thomas Martin, Thomas Riedisser

CPC Classification: B62M11/145 (RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general ; transmission elements per se ))

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