SCHWINN HIGH TIMBER ALX MOUNTAIN BIKE 29"Schwinn aluminum MTB frame with Schwinn suspension fork are great for all around fun on the trail. 29-inch wheels fit riders 64 to 74 inches tall.21-speed trigger shifters provide easy gear changes.Mechanical disc brakes deliver extra stopping power.Schwinn alloy cranks and 7 speed freewheel offer the right gear at all times.Alloy, high-profile double wall rims are strong and lightweight. Schwinn 29 x 2.25 All Terrain tires provide go-anywhere capability.