Description: 100% brand new and high quality Features: 3434s MTB Bike Road Bicycle Headset 34mm EC34 CNC 1 1/8 28.6 Straight Tube fork Internal 34 conventional Threadless Headset MTB road bike headset 34mm ec34 cnc 1 1/8 28.6 Upper cup/Bearing outside diameter+ Lower cup/Bearing outside diameter + Fork tube ("34" for OD 34,"S"for Straight Tube fork) Professional and durable,you deserve it. Specifications: Material:Aluminum Alloy Sizea: as Picture Shows Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Packaging Includes: 1 x Headset.