The material carbon reinforced concrete finds more and more acceptance in construction. Comprehensive research results are at hand already for the use of carbon reinforcements in the form of mats concerning their tensile and bond behavior. However, many research activities are still urgently required regarding the use of carbon rebars, particularly in view of the bond behavior of the bars in concrete. For this reason, different carbon rebars with varying surface profiles have been tested in a number of experimental tests for their bond behavior. The influence of the concrete strength on the bond behavior was additionally tested at a preferred rebar.