| 摘要 |
A variable speed drive assembly with a double pulley, and a transmission input pulley. A first belt extending between a power source and a double pulley and a second belt extending between the double pulley and the transmission input pulley. A linkage assembly operating to move the double speed pulley toward the transmission input pulley to increase the vehicle speed. The drive assembly capable of disengaging or placed in a neutral condition when power to the vehicle is removed.
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