The Trek FX Sport 5 Carbon Bike - 2025 is a fitness bike for a lightweight feel and comfort. A road bike but way more comfortable, this carbon stead reaches high speeds with a flat handlebar. Whether riding on your own, with a partner, or with a favorite bike group, the drivetrain keeps things moving at a clip. When the light turns red or there's a sharp turn ahead, hydraulic disc brakes provide incredible stopping power.