Milwaukee Bicycle Co Sealed Bearing Headset<p></p><li>Includes star nut</li><li>Steerer Tube: 1-1/8" Threadless</li><li>Headset Type: 1-1/8" Standard Cups</li><li>Crown Race: 30.0</li><li>Stack Height: 28.50 mm</li><li>Bearing Type: Cartridge</li><li>Material: 7075 Aluminum</li><li>Weight: 117.0 g (Complete headset w/starnut)</li>