26''x17'' Fat Bike,adopt 4.0 Width Wheel,Soft-tail Aircraft-grade Aluminum Alloy Frame & Hollowed Rim, Front & Rear Disc Brakes,24 Speeds Available Aircraft-grade Aluminum alloy Frame,Handle bar,Pedal, Rim,Seat post Top Quality Speed Change System,Comfortable Hollowed Seat,Oil/Spring Absorbing Lockable Fork High-voltage Electrostatic 8 Layers Stoving Varnish Surface,Fine Welding Technology Quick Release Type Hubs,Precise Localization Gear,Sealing Bearing Bottom Bracket High-carbon Steel Spokes,Aircraft-grade Aluminum alloy Rim,20 Thousand Km Warranty Tyre