Description： Mountain Bike / Bicycle Carbon Steel Folding Frame 26" Full Suspension Specification: Wheel Size: 26 Inches Maximum Load Weight: 100 kg Number of Speeds: 21 Speed Adjustable Seat Height: 80-95cm / 33.5-35.4in Brake: Front and Rear Brake Type: Disc Brake Chain Length: 108 Knots Gear Size: 24/34 / 42t Three-part The Distance from the Handlebar to the Seat: 56cm / 22in Material: Carbon Steel Seat Material: Synthetic Leather / Metal Weights&Dimensions： Dimension: 130 * 58 * 12cm Weight: 19.8kg Features&Highlights: Upgrade the frame Suspension to make your ride more comfortable,and foldable frame easy to store and carry 21 speed Shifters easy to use folding bikes for adults,26 inches,for Men or women,sutdent back school Disc brake make brakes more sensitive The price is afforda.