Specifications Material: High Carbon Steel, Aluminum Alloy, Rubber, PC Surface Treatment: Spraying, Heat Treatment, Fish Scale Welding Style: Modern Brake Style: ‎Disc Assembly Required: Yes Color: Black, White, Blue Special Feature: Portable, Foldable Number of Items: 1 Number of Speeds: 21 Wheel Size: 66cm/26in Seat Adjustment Height: 80-94.5cm/31.5-37.2in Applicable Height: 1.6-1.8m/5.25-5.9ft Armrest Distance: 62cm/24.4in Maximum Bearing Capacity: 120kg/264.5lbs Gross Weight: 19.45kg/42.87lbs Net Weight: 16.2kg/35.7lbs Product Size: 169*98cm/66.53*38.58in Foldable Size(L*W*H): 103*96*35cm/40.55*37.8*13.78in Package Size: 136*21.5*72cm/53.54*8.46*28.34in Package Included 1*Foldable Bicycle 1*Chinese Manual All Accessories for Assembly.