Mongoose Excursion Men's Mountain Bike, 29 inch wheels, 21 speeds, black / white

29-inch wheels fit riders 64 to 74 inches tall. Durable steel mountain frame that's ready to hit the trail. The front suspension fork provides a smoother ride. 21-speed twist shifters make shifting easy and smooth. Front disc brake delivers fast, controlled stops. Light and strong alloy rims and knobby tires are built for the trail. Tool-free adjustable seat post for easy height adjustments.