Features and BenefitsBike Type: Mountain Bike--Are super versatile, you can ride them in the dirt or ride them on the pavement. Bike Frame Material: Aluminum--A light material that offers you a responsive ride. Type of Shifter: SRAM MRX--You simply twist the shifter portion of the handle grips to change the gears. Brakes: Front and Rear Alloy Linear-Pull--Powerful and reliable braking everytime.Fork Type: Suspension--This helps to smooth your ride and increase your bike's handling. Rear Derailleur: Shimano--Gives you smooth and reliable shifting.Handle Bars: Riser--Raises the handle bar position for more comfort and better control. Key SpecsBike Gender: Men'sBike Wheel Size: 26 InchesNumber of Gear Speeds: 21 Speed