5mm thick wire tube is the brake wire tube, used for installing brake.4mm thinner is the shifting wire tube.these two wire tubes are different. With enough line pipe cap and other accessories for convenient assemble.
Compatible for 28.6mm straight steerer fork. For Fork: 1 1/8" (28.6mm) Straight Steerer Fork. 1 x Bike Headset. Material: Aluminum Alloy. Easy to install and use. 4.5 x 4.5cm / 1.8 x 1.8in. If you do not receive our reply within 48 hours, pls.
ApplicableFront Fork: Standard vertebral fork / standard straight fork. 1 Set of Bicycle Headset. Application: Standard vertebral fork on 28.6MM and lower 39.8MM (1-1/2”), Standard straight tube front fork on 28.6MM and lower 30MM (1-1/8”).