Cannondale's F-Si Women's 1 was born to go fast. A lean, mean, dirt machine, the F-Si Women's 1 sports a stiff, lightweight SmartFormed aluminum frame for a ride that packs trail-chomping zing. Ride-dialed geometry points, like nubby chainstays, 1.5-inch SI head tube, and Speed SAVE flex zones mean you'll sail through technical scrum and leave your friends wondering how you got so fast. On the front, the RockShox Recon fork has 100mm of travel to help you stick to your line, and the 27.5-inch Stan's rims roll whip-quick over any obstacles that dare to cross your path. They're tubeless-ready, to boot—so get the sealant out and prepare to shred! This cross country rocket's unheralded performance continues with Shimano's XT/Deore drivetrain, a 20-speed setup that offers crisp, reliable shifting. And, total control is at your command with Shimano's Deore brakes. Your XC domination will only excel with the inclusion of Cannondale's lightweight aluminum components. So, when you fly out of the trailhead, don't be afraid to flex a little: Cannondale's Habit can keep up!