Specifications: Lower bearing ID: 40mm / 1.57in Lower bearing OD: 52mm / 2.05in Stack height: 2.3 + 1.9 = 4.2cm Item weight: 117g / 4.15oz Features: Aluminum alloy integrated tapered headset. With two precision sealed bearings(upper 30mm / bottom 40mm). CNC precision machined light 7075 aluminum alloy. All parts replaceable individually.

• Material: 7075 Aluminum alloy
• Color: Black
• Upper bearing ID: 30mm / 1.18in
• Upper bearing OD: 41.8mm / 1.65in
• Package List: 1 * Internal Tapered Headset

Material: 7075 Aluminum alloyLeadchoice