Change 12-13-17-20 Gran Turismo

Quadruple specific for all tuned touring engines with long primaries, strictly recommended in the 225cc versions. Z12-13-17-20 (Fourth Short). Fits only with a large gear tooth. Applications: Vespa T5 125, Vespa PE 200, Vespa PX 125, Vespa PX 125 euro 1, Vespa PX 125 euro 2, Vespa PX 125 euro 3, Vespa PX 150, Vespa PX 150 euro 1, Vespa PX 150 euro 2, Vespa PX 150 euro 3, Vespa PX 200, Vespa Cosa 125, Vespa Cosa 150, Vespa Cosa 200, Vespa RALLY 200 DUCATI, Vespa RALLY 200 FEMSA, Star 125 2T, Star 150 2T, Vespa PX 200 Tourism processing, Vespa PX 125/150 Processing Racing.