Trails are beckoning, and when you're aboard Trek's Cali S Disc WSD, you can answer the call. This is no shrink-and-pink version of a guy's bike; it's built for women from the ground up. The geometry is nimble and fun, with a low standover for comfort and peace of mind. Trek's Alpha Gold aluminum frame boasts a custom 100mm-travel fork and big wheels with fat tires. For speed and flow the Shimano 2x10 drivetrain and wide Bontrager bars let you power your Cali over all trails. And to slow you down, there are powerful Tektro discs keeping you in control. All this adds up to a huge helping of fun out on the trail.