| 摘要 |
A crank set for a bicycle includes a crankshaft having a drive side shaft end part (3) and a non-drive side shaft end part (4), bearings (1, 2) for mounting the crankshaft rotatable in a bottom bracket shell of a frame of the bicycle, a drive side pedal crank (16), a non-drive side pedal crank (20), and at least one chain ring (14, 15) provided on the drive side shaft end part (3). The drive-side shaft end part (3) is provided with an integrally formed radially outwardly extending mounting body (7) upon which the drive side pedal crank (16) and the chain rings (14, 15) are mounted. The non-drive-side shaft part (4) may also be provided with an integrally formed radially outwardly extending mounting body (10) upon which the non-drive side pedal crank (20) is mounted.
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