Can we say that "air chamber" is a synonym of "inner tube"?
I don't think so, though as a lot of cycle inner tubes are imported from Italy (camera) a borrowing is possible. It can happen in that sort of area. Bicycles that have a gear that can be decribed by the French word dérailleur are spoken of currently as /di:'reɪləz/. (A train can be derailed, but I don't think many cyclists have that verb in mind when they talk about their gears.)