Cannondale's Trail 29er 4 is a great bike for big-wheeled, off-road adventure. The frame's large-diameter, thin-wall aluminum tubes maximize stiffness and minimize weight so you can climb quickly and easily. And you roll over everything in your path thanks to the 29-inch wheels with WTB tires. An SR Suntour fork leads the way and soaks up bumps with 100mm of travel and disc brakes provide serious stopping power. Plus, the Shimano drivetrain offers smooth gear changes and easy pedaling no matter what terrain you're conquering.