This study examines the suitability of using bicycles to enhance the mobility of U.S. light infantry units. Initially the study defines mobility problems encountered by U.S. light infantry units as a result of force design. The study presents historical examples of previous military cycling operations at the turn of the century, during both World Wars, and the Vietnam Conflict. The tactical use, mobility, speed, distance, and load carrying capacity of bicycle troops during each of these periods are discussed. The present use of three bicycle regiments in the Swiss Army is examined. The impact of recent technological improvements in the bicycle industry is examined for possible military application. The investigation found that previous infantry units equipped with bicycles enjoyed a significant mobility advantage over foot soldiers. The Swiss cycle regiments continue to demonstrate the utility of the bicycle on the modern battlefield. The study determined that recent improvements in bicycle technology serve to further enhance its military use. The study concludes that equipping U.S. light infantry units with the bicycle would significantly improve their tactical mobility, yet allow them to retain their present force design.