The Huffy 3.0 difference! 3.0 Bikes increase momentum with less exertion; Plus Tires improve stability and increase control - go ride! 27.5" Wheels make bumps and holes easy to maneuver - just ride over them Steel frame designed for mountain bike riding comfort, proper fit for a wide range of riders and durability Suspension fork provides a great ride with the right amount of response 21 speed twist shifting and a Shimano 7-speed index derailleur combine for easy shifting and smooth performance Alloy linear pull brakes, and Kolo 3-piece alloy crank add superior performance to every ride Lightweight alloy rims resist corrosion Kraton grips give a performance look and comfort feel to your ride 3.0 equals three times the mountain bike fun. The bicycle requires assembly on purchase and should be done by an adult or under the guidance of a Technician, Kindly check the given rider height before purchasing the product, Retrns will not be acceptable if size issue