Feature●【Fork Sizes】1-1/8 inch Straight Tube Threadless;Offset: 45mm;Steering tube length: 252mm;Standard PM,For 160mm-183mm Rotor;For Tire width size: 2.45”,Max, only for disc brake.●【Fork Material】The front fork is made of high-strength aluminum alloy, the strength is beyond your imagination, and the weight is only 1.5 pounds, which makes riding more relaxed and enjoyable.The thick diamond angle fork design provides more rigidity, the overall appearance is elegant. The sticker on the front fork can be torn off without leaving any traces.●【Headset Applications】44-56mm (applicable to 44-56mm Aluminum alloy frame head tube + 28.6mm straight tapered steerer fork head tube)Crown Race: 30/39.8mm.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.●【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.Description BUCKLOS 29” Mountain Bike Rigid Forks, 1-1/8” Straight MTB Rigid Fork Disc Brake, Superlight Aluminum Alloy Bicycle Rigid Fork fit BMX MTB Road Bike & 1-1/8 Bike Headset MTB Threadless 44-56mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut