Product details Mountain bike with a lightweight aluminum frame, featuring modern geometry and internal headset for fast, streamlined ride. 29-inch wheels fit riders 64 to 74 inches tall. Element suspension fork helps smooth out bumps in the trail for a more comfortable ride. 21-speed trigger shifters provide effortless gear changes. Front and rear mechanical disc brakes deliver superior stopping power in all conditions. Alloy double wall rims with 2.3-inch wide mountain tires provide lightweight strength and improved traction. Tool-free adjustable seat post makes it easy to fine tune the fit.SpecificationsFeatures:No features description availableBrand:MongooseBicycle Type:Mountain BikesBicycle Wheel Diameter:29\”Age Group:AdultNumber of Speeds:21 SpeedColor:GrayFrame Material:AluminumAssembled Product Dimensions (L x W x H):34.58 x 28.69 x 42.05 Inches