Fast and comfortable, you get the best of both worlds with Trek's 7.5 FX! Its FX Alpha hydroformed-aluminum frame provides an efficient, comfortable ride, while the Bontrager carbon fork is super light and damps vibrations for velvety smoothness. The wonderful ride continues with Bontrager's light wheels and flat-resistant Race Hardcase tires, which are equally at home on roads, paths, and trails. Plus, the 18-speed compact drivetrain gives you the right gears for any hill at any pace, and the hydraulic disc brakes offer controlled stopping rain or shine.