Colonna BUCKLOS 1-1/8" Cuscinetto serie sterzo per telaio bicicletta Scatola sterzo per tubo dritto/conico

[Applications] There are 6 sizes to choose from, which basically cover common frame head tube sizes. Please choose according to your specific needs.Black/Red Colors are optional, suitable for MTB, road bike, convenient and durable, easy to install,High-quality, low friction face-seals on the crown races.1-1/8" Threadless headset Completed with Headset expander plug,star nut and bolt. [Double-sealed bearings] Equipped with double-sealed steel bearings to capture compression rings and reduce the number of loose parts. It is smoother and easier to maintain than ball bearings, making the handlebars light and smooth. [Easy to Install] Easy to install, save time and effort, good value for money. When driven, the bike feels as smooth as butter. [Headset Expander Plug] Suitable for front fork with upper end outer diameter of 28.6mm, and carbon fiber front fork and mountain suspension fork are applicable.It can be used repeatedly, easy to install and disassemble, and can be installed in a few minutes with an a hex wrench. This process eliminates the risk of damage and supports the fragile upper edge of the steering tube, which securely connects the front fork to the stem.