It incorporates 2Way Fit technology that allows the use of a tire with an inner tube or a tubeless tire indistinctly. Rim brake system that carries the famous AC3 technology and includes the brake pads. 18 spokes on the front wheel and 21 on the rear with G3 lacing. Aluminum hubs with USB bearings and 100mm front and 130mm rear axles. Weight: 1395 grams.