目的：本研究旨在探討自行車騎乘者在參與自行車活動過程中所具有的認真休閒特質、專門化程度以及所獲得的流暢體驗，並進一步探討三者間的關係。方法：研究採問卷調查法進行資料蒐集，以臺灣北部、中部、南部及東部地區自行車社團成員為對象，共發出問卷627份，回收有效問卷605份。並將所得之有效問卷分別以描述性統計、因素分析、多元逐步迴歸等統計方法進行資料分析。結論：1.自行車騎乘者的認真休閒特質能有效預測遊憩專門化程度，且其中以持續利益以及堅持不懈與個人努力之預測力最高；2. 自行車騎乘者的遊憩專門化能有效預測流暢體驗，且其中以技巧與知識之預測力最高；3. 自行車騎乘者的認真休閒特質能有效預測流暢體驗，且其中以堅持不懈與個人努力之預測力最高。此外，在達到流暢體驗的過程中，自行車活動本身的意義、車道特性、參與者本身的投入和技術（技巧和知識、過去經驗、花費）等遠比路線長短、坡度等屬性的影響更重要。本研究結果建議讓參與者感受到參與過程本身即是一種樂趣的經驗，並在活動當中感受到參與活動所衍生的心理及生理的各項持續效益，透過與其他參與者互相學習的過程培養情誼，增進技巧與知識，最終達到流暢體驗。

Purposes: this study was to examine the levels of serious leisure, recreation specialization and perceived flow experiences during activity participation, and further identify the relationships between these three variables. Methods: A survey questionnaire was employed and data were collected on members of bicycle riders associations from north, central, south and east regions of Taiwan. Six hundred and twenty-seven questionnaires were distributed and 605 were retained. Data collected were analyzed using descriptive statistics, factor analysis, and regression analysis. Conclusion: The major findings were summarized as follows: (1) The characteristics of serious leisure possessed by bicycle riders significantly predicted recreation specialization, with durable benefits, need to persevere /personal effort the most powerful predictor; (2) The level of recreation specialization possessed by bicycle riders significantly predicted their flow experiences, with skill and knowledge the most powerful predictor; (3) The characteristics of serious leisure possessed by bicycle riders significantly predicted their flow experiences, with persevere and personal effort the most powerful predictor. The findings suggested that bicycle riders can obtain flow experiences by enhancing their levels of serious leisure and recreation specialization.