Specification Frame Material: High Carbon Steel Seat Material: PU, PU Foam Material of Handlebar Rod&Seat Rod: Iron Handlebar Material: High Carbon Steel Handlebar Cover Material: Rubber Color: White, Black Frame Features: Straight Rod Surface Treatment: Three Layers of Electrostatic Spraying Number of Speeds: 7 Special Feature: Foldable Age Range (Description): Adult, Teenager Load-bearing Capacity: 80kg/176lbs Recommended User Height: Above 150cm/59inch Suspension Type: Dual Disc Brakes Total Length: 150cm/59inch Seat Distance From the Ground: 65-83cm/25.6-32.7inch Handlebar Distance From the Ground: 95-108cm/37.4-42.5inch Tire Diameter: 50.8cm/20in Handlebar Grip Distance: 16cm/6.3inch Rear Shelf Size: 34*14cm/13.4*5.5inch Seat Size: 24*20cm/9.4*7.9inch.