Trek's 820 is a fun, versatile bike. It features a great-riding steel frame with a relaxed, upright riding position you'll love. Up front, a suspension fork smooths the road and trail. Plus, it sports a quick-shifting, easy-pedaling 21-speed drivetrain, powerful linear-pull brakes and quality Bontrager components, such as a a comfortable saddle and tough mountain bike-sized wheels with versatile knobby tires.