BUCKLOS strives to provide high quality products and professional services to every customer. It's hard to find a better air fork in this price range. If you have a limited budget, you can choose it as a alternative to RockShox and Fox. Description: Brand: BUCKLOS Fork Travel: 160mm For Wheel Size: 27.5 inch Material: Aluminum alloy+Magnesium alloy Right Side: Lockout Gate System. Crown Size: 39.8mm (Tapered). Steerer Tube diameter: 28.6mm (1-1/8 Threadless) Steerer Tube length: 250mm (Aluminum alloy) Lower Tube: Magnesium alloy Front Hub Spacing: 110mm. Material: Carbon(Top cap)+Aluminum alloy(Expander) Top cap Thickness: 2.0-2.2mm (Strengthen) For Steerer Diameter: 1-1/8 Threadless Quantity: 1PC Expander&Top cap.