Complex sentence: In 1992 the first electronically controlled gear shift mechanism, the "Zap", was introduced by the French manufacturer Mavic at the 1992 Tour de France as a prototype, but it achieved neither technical success nor commercial application.
Split into simpler sentences: In 1992 the first electronically controlled gear shift mechanism, the "Zap", was introduced by the French manufacturer Mavic at the 1992 Tour de France. It was a prototype, but it achieved neither technical success nor commercial application.