Mountain biking has a learning curve, but you've got great head start in Cannondale's Catalyst 2. A strong, lightweight butted aluminum frame creates precise handling and a nimble ride that eats up singletrack and around town commutes equally well. 27.5-inch aluminum Alex rims roll quickly and smoothly atop Innova tires. The Shimano drivetrain provides 27 smooth-shifting speeds to conquer flats and hills, and Promax hydraulic disc brakes bring things to a stop right when you need them. On top of that, sturdy-yet-lightweight handlebars, stem, and saddle from Cannondale are sure to lessen the curve of learning.