Safety Riding is the basis for further training to drive more attention to safety for drivers and passengers. The purpose of this study, analyzing the relationship of knowledge to behavior Riding Safety Sentonorejo bikers in the village of the Trawulan Mojokerto. This study design is Analytical Correlation. The population in the study were all members of the association motorcycle blessing some 150 people. Mechanical sampling using simple random sampling Non-probability methods. Variable research is knowledge of the behavior of Safety Riding. Measuring instrument used was a questionnaire and checklist. While the data processing is done with the editing, coding, Scoring, Tabulating and data analysis using Spearman Rho test statistics. The results showed the 14 respondents who are knowledgeable good, 12 respondents (85,7 %) were well behaved and 2 respondents (14,3 %) who behaves fairly, and one of the respondents (100%) were knowledgeable enough and the behavior will also suffice. Test Results Spearman Rho with significant value ρ value = 0.040 (significance α