Chris King GripNut Threaded Headset incorporates a threaded collet that firmly clamps the threads for better holding power and includes a ten-year warranty.<br /><br /> User-serviceable stainless steel cartridge bearings with full-contact seals<br /> GripNut headset incorporates a threaded collet that firmly clamps the threads for better holding power<br /><br /> Steerer Tube: 1" Threaded<br /> Headset Type: 1" Standard Cups<br /> Crown Race: 26.4<br /> Stack Height: 33 - 38 mm<br /> Bearing Type: Cartridge<br /> Material: Al<br /> Weight: 93.0 g