CNC machined from hardened, heat-treated stainless steel and featuring a multicolored PVD processed titanium nitride coating.

Titanium nitride (TiN) is an extremely hard ceramic material often used on medical devices, drill bits and precision saw blades to increase lifespan or function.

In addition to providing a beautiful oil slick plated appearance, this coating also improves surface hardness, prevents wear and reduces friction.

Sizes 17t-19t have cutouts for weight savings.

Please note: Due to the plating and finishing process, some cogs will have slight varinaces in color from what is pictured and no two are exactly alike.

FYI: All track cogs have 1.37"x24tpi threading. ALL OF THEM. Any threaded cog can be used on any threaded track hub.