This is a replacement drive side axle cone for BlackOps MX-2100 Micro-C sealed hub. This is for the fully sealed version of the BlackOps 9t hub, not the loose ball version. It will also work with The Mission Response hub and some others made by KT and many others. This listing includes just the axle cone.

This cone has M14x1mm threads. The cone is 10mm thick and has an OD of 25mm and works with a 23mm wrench.