Bicycle simulator

A bicycle simulator comprising:

• a base portion;
• a frame support portion connected to the base portion to be movable in a direction and configured to support a bicycle frame of a bicycle docked, the bicycle frame connecting a front wheel with a rear wheel of the bicycle;
• a first sensor portion configured to obtain sight information of a rider riding on the bicycle;
• a processor configured to generate a virtual image that is changed according to the sight information of the rider obtained by the first sensor portion;
• and
• a display displaying the virtual image;
• a front wheel roller configured to support the front wheel of the bicycle and rotate together with rotation of the front wheel;
• a rear wheel roller configured to support the rear wheel of the bicycle and rotate together with rotation of the rear wheel;
• and
• a third sensor portion configured to sense a rotational speed or a rotational distance of the front wheel roller, the rear wheel roller, or both;
• wherein the processor is further configured to reduce or expand a frame of the virtual image according to a change of the rotational speed of one or more of the front wheel roller and the rear wheel roller;
• and
• wherein the processor is further configured to, when the rotational speed of the one or more of the front wheel roller and the rear wheel roller is increased, arrange a focused virtual image on the reduced frame of the virtual image.