Pistone PIAGGIO AC Ø=57,0 mm (veicoli con cilindro in alluminio) per Vespa ET4 125 (2000-2005), LX 125 (2005-2011), LXV 125 (2006-2009), S 125 (2007), Piaggio Fly 125 (2004-2010), Liberty 125 (2001-2015), Skipper 125 ST (2000–2005), TPH 125 (2010–2016), X