O RING SPROCKET COLLAR is a genuine KTM RC 390cc gear/sprocket from the TRANSMISSION II - COUNTER SHAFT (OUTPUT SHAFT) assembly, catalogued for KTM RC 390 2018. It is supplied to original-equipment specification for a precise, hassle-free fit on 2018 models.

Ordering by part number JY551018 guarantees you receive the exact item shown. Not sure it fits your bike? Contact us and our team will confirm compatibility before you buy.