Product Name:27.5inch air bicycle front fork suspension Wheel:27.5'' Damping :L RL(Optional) Available :Spring Air Adjustments:External lock, Remote lockout(optional), Rebound(Optional) Steerer options:Aluminum 1 1/8 steerer and 1 1/2-1/8Taper Steerer(Optional) Crown:Forged ,Deep Bore Hollow Aluminum,Black painted( color customizable ) Upper tubes:30mm Aluminum Lower:one-piece magnesium , 100mm opening Crown to axle:100mm travel 505mm Offset:39mm Brake:Post mount , Maximum rotor size:180mm Axle:9mm ΦR Color optionsUpper Tubes: Black,Gold, Titanium Lowers: Matte black, Matte white , Gloss Black, Gloss White Weight:1800g