NUT HEX THICK is a genuine KTM RC 390cc fastener from the BRAKE SYSTEM - REAR assembly (rear side), 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 KCAD0605 guarantees you receive the exact item shown. Not sure it fits your bike? Contact us and our team will confirm compatibility before you buy.