27.5" Huffy Men's Mayhem Mountain Bike The Huffy Mayhem Bike is the right size for any rider. Lightweight aluminum frame has a sharp, attractive design that features great colors and graphics. This bike with Plus Size Tires offer more stability, better traction and increased rolling momentum. The Huffy Mayhem 27.5-inch Bike index shifting works with the Shimano rear derailleur for consistent performance. Alloy linear pull brakes mean you have solid control when you stop. The padded saddle is designed for comfort, plus the quick release binder makes it easy to adjust or remove the saddle anytime. It combines a smooth ride with great performance. The three-piece crank adds durability while the lightweight, weather resistant alloy rims perform well in all conditions. More momentum. Less exertion. Better traction.Solid ride. Age range: 14 years and up Frame: Lightweight Aluminum, satin volt yellow frame designed for mountain bike riding comfort with a proper fit for a wide range of riders and durability Grips: Krayton grips give a performance look and comfort feel to your ride Seat: padded saddle Brakes: alloy linear pull brakes and Kolo 3-piece alloy crank add superior performance to every ride Tires: 27.5" x 2.8" rugged tires handle a mix of terrain Advantages: Increase momentum with less exertion and Plus Tires improve stability and increase control Rims: black Speeds: 21 Pedals: double-comfort Carton Dimensions: 61.4" x 29.9" x 8.3" Weight: 52.3 lbs Assembly instructions included