GEAR 3RD-4TH DRIVE is a genuine KTM RC 390cc gear/sprocket from the TRANSMISSION I - MAIN SHAFT (INPUT SHAFT) assembly, catalogued for KTM RC 390 2021. It is supplied to original-equipment specification for a precise, hassle-free fit on 2021 models.

Ordering by part number JY551229 guarantees you receive the exact item shown. Not sure it fits your bike? Contact us and our team will confirm compatibility before you buy.