The shear behavior of RC beams at failure differs utterly from their behavior by bending, that is taken into consideration to be a dangerous mode of failure. Shear failure of RC beams is often explosive and abrupt, whereas not spare advanced warning. Diagonal cracks propagate precipitately as a result of excess shear forces are significantly wider than the flexural cracks. The single Swimmer bar system is a new alternative of shear reinforcement. It is a small inclined bars, with its both ends bent horizontally for a short distance and tied to both top and bottom steel reinforcement. The single swimmer bar system can be spliced, welded or bolted. The present study simulates the effectiveness of using single swimmer bars instead of traditional stirrups on improvement of shear performance in reinforced concrete beams, as well as studying the effect of concrete strength and the type of tying to determine the most economical strength and the most effective type of tying to carry shear forces. Seven beams are experimentally tested under static load. The test results are given in shape of photos, figures and tables including modes of failure, both cracking and ultimate loads, the maximum deflections and maximum strains. The test results show that using swimming bar as shear reinforcement increase the shear strength and improve the deformability of the tested beams.