Looking for a high-performance carbon gravel bike that can handle any terrain? Look no further than the KOOTU BERSERKER GRX-400. This top-of-the-line bike boasts a lightweight carbon frame, a powerful Shimano GRX-400 drivetrain, and rugged, versatile tires that are perfect for gravel, dirt, and pavement. Whether you're racing, touring, or exploring off-road, the KOOTU BERSERKER is the ultimate choice for serious cyclists. Weight:about 9.6kg(21.21lbs) Internal cable routing design T800 Carbon Fiber Frame,fork,seatpost Gravel specific frame SHIMANO GRX 400 20 Speed  Hydraulic disc brake 700C*40C Continental Tires KMC Chain Free Pedals Include