The Industry Nine iRiX Headset Cup provides the ...
ability to select an upper and a lower headset cup assembly separately to fit any ride. iRiX bearing cups, top covers and top caps are machined, anodized and laser-etched using US-sourced 7075 ...
Nut for Alloy Steerers is only for use on non-carbon steerer tubes. The "UD Carbon" version of this top cap is a weight-saving upgrade that adds a clean look to any bike. ...