Designed with Lew the Mills stem is CNC machined from 6061-T6 aluminium and features extensive external machining to the faceplate and body to reduce weight, solid chromoly stem bolts, and a recessed compression bolt area that allows the top cap to sit flush for a clean look. We've increased the width slightly and removed all internal machining to virtually eliminate handlebar slippage. 48MM reach, 23MM rise.