Specification Frame Material: Aluminum Alloy Seat Material: PU, PU Foam Material of Handlebar Rod&Seat Rod: Iron Handlebar Material: High Carbon Steel Handlebar Cover Material: Rubber Color: White, Black 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: 155cm/61inch Seat Distance From the Ground: 60-93cm/23.6-36.6inch Handlebar Distance From the Ground: 90-105cm/35.4-41inch Tire Diameter: 50.8cm/20in Pedal Size: 10*7cm/3.9*2.8inch Seat Size: 17*23cm/6.7*9inch Handlebar Grip Distance: 25cm/9.8inch Product Size (After Folding): 40*80*57cm/15.7*31.5*.