Collet Stem (original stock)For Collectors! I have one of each dug up from the deepest corners of the machine shop that made them over 15 years ago. SPECS Made of 7075 T6 CNC machined aluminum collet steertube clamp smooth and compact design made by high tech 3D surface contour CNC machining SIZE Length 53mm Rise: 25mm Stack height 30mm COLORS Black, Blue, Red, Gold, or Raw WEIGHT 8. 1oz 229g WHY MAKE THIS PART? I wanted to create a knee friendly stem that worked well and did