TRETKURBELANTRIEB FÜR EIN FAHRRAD UND TRETKURBELANTRIEB

摘要

Bicycle (1), comprising a first frame part (2) connected to a second frame part (13). The second frame part (13) is provided with a drive (14), comprising a crankshaft (16) carrying a driving gear blade (19) and a rear axle (17) carrying a driven gear blade (23). The bicylce (1) has as a particular feature that the drive (14) further comprises a gear hub (18) carrying a first, input gear blade (27) and a second, output gear blade (28), which gear hub (18) is mounted on the second frame part (13) at a distance from the rear axle (17).