| 摘要 |
A power transmission mechanism for a motorcycle includes a change speed gear mechanism which includes a driven countershaft having one end projecting out through an opening in a transmission casing. The countershaft has a driving bevel gear formed integrally thereon and meshes with a driven bevel gear enclosed in a final gear case detachably connected to the transmission casing. Removal of the final gear case permits axial removal of the countershaft and its integral bevel gear through the opening, as well as removal of certain of the gear elements in the change speed gear mechanism, which also pass through the opening. |
