Looking for an edge on bumpy country trails? Want a bike that can endure the cracked pavement of city streets? The Northwoods Men"s Z245 18-speed Mountain Bike (24") in Silver is the perfect fit. The Northwoods mountain bike is built around a strong core a sturdy, lightweight aluminum frame perfect for moving fast and knobby tires that grip the road. Plus, a Shimano derailleur allows for quick and easy shifting of an 18 speed bike and full suspension helps protect you from rough roads. On the Northwoods Mountain Bike, youll sail over any terrain with speed, control and comfort.