On the Sella Pass. Around 1800 meters, one of the Ciaos, the Ammiraglio—an original 1971 pulley—stopped. A problem with the coil, a known weak point. On-site repairs were carried out, the engine was replaced, and the engine restarted.
But revving up doesn't mean downshifting. The altitude had affected the carburetion, power dropped, and even the second Ciao, with its variator, began to struggle. The solution was simple and radical: tie the two bikes together and tow one with the other, pedaling both at full speed. Not elegant, but effective. And enough to reach the pace.