Yamaha innere Ventilfeder XJ550 XJ600 SR125 TW125 SR185 valve spring inner 4G0-12113-00 OriginalGenuine Yamaha spare part for restoration and repair.Original quality, perfect fit and worldwide shipping.Why buy from MG-Teileshop?- 100% genuine Yamaha parts- Wide selection incl. rare / NOS parts- Fast worldwide shipping- Professional customer support