Brand New Aluminum mountain bike with Schwinn suspension. 21 speed velocity with front and rear mechanical disc brakes. if you have any questions regarding the bike or will like to stop by and see it send me a message. Description: Bicycle frame size: 18" Gear Speeds: 21 Dimensions (Overall): 7.87 inches (H) x 53.74 inches (L) Weight: 38.0 pounds Rear Wheel Diameter: 29.0 inches Seat Features: Adjustable Wheel Features: Quick Release Front Wheel Bicycle Frame Material: Aluminum Bicycle Chain Material: Alloy Rim Material: Metal Alloy Shifter Manufacturer/Type: Shimano Revo Pedal Material: Plastic Seat Material: Vinyl Wheel height: 29" Tire Width: 2" Tire Type: Knobby Suspension Type: Front Bike use: Trail riding Front Brake System: Disc Rear Brake System: Disc *All of our bikes are brand new, they tend to have small or some scratches in the frame due to delivery process which is out of our control. Sales are final your more than welcome to test ride it before purchase*