Riding at full speed can be exhilarating and thrilling, but there are a multitude of synonyms that can add a variety of meanings and nuance to the phrase. Some possible synonyms include racing, dashing, hurtling, galloping, soaring, rushing, hurtling, bolting, charging, and thundering. Each of these words can convey a different sense of speed, intensity, or motion. For example, racing implies competition and a faster pace, while galloping suggests the movement of a horse or other four-legged animal. Choosing the right synonym for "ride at full speed" can help to create a vivid and dynamic picture in the reader's mind.