Piston kit (39.88mm) standard bore cylinder kit Athena for Derbi GPR 50 EU2 (2009-2010) / GPR 50 Nude & Nude Tuning / GPR 50 R EU2 / Senda 50 SM DRD Racing E2 (2006-2008) / GPR 50 R Replica Malossi / GPR 50 Replica Pesek EU2 / Senda 50 SM DRD Racing LTD EU2 (2007-2018) / GPR 50 Racing / E2 / GPR 50 Replica (2006-2018) / Senda 50 R DRD Pro E2 / Senda 50 SM DRD Pro E2 (2006-2011) / Senda 50 R X-Race E2 / Senda 50 R X-Trem EU2 (2006-2010) / Senda 50 SM X-Trem EU2 (2010-2018).
Diameter: 39.88 mm
Manufactured by Italian manufacturer Athena, the kit includes all components shown in the picture and meets ISO 9001 and ISO 14001:2015 quality standards.
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