小弟沒有Rally,也沒有拆過車。
不過在scooterlounge網站看到這一段
The body on the Rally was set up in the same general manner as the Super Sport which preceded it. The right cowl covered the motor, while the left cowl was also removable, and covered a spare tire.
The spare surrounded a battery and related electrical components. All U.S. model Rally 180 and 200 models came with a battery as standard equipment, while some European market versions did not have a battery. On the Rally, the metal spare wheel cover, which had been used on the G.S. 160 and S.S. 180, was substituted for a plastic cover.
http://scooterlounge.com/vespa/buyers-g ... ally.shtml照那字面看來是電池以及
相關的電系零件至於什麼零件小弟就不知啦 XD
http://modernvespa.com/forum/topic76703看來是這樣