CNC machined Aluminum adjustable Wahoo computer mount for secure and protected placement above the stem. 1-1/8 Steerer Tube Diameter compatibility Features Wahoo interface, fits both Wahoo ELEMNT and Bolt computers Mounts computer above stem replacing a 5mm spacer, 50mm extension; locking securely in place by top cap compression system Adjustable to desired angle to accommodate many stem rises Precision machined, anodized 6061-T6 Aluminum Lifetime warranty Weight: 25 g