Kelin includes both the affirmative and negative aspects in itself at the same time. In this paper several suggestions are made to systematize the affirmative aspect concretely. First, kelin and cycling should cooperate to be prepared for spreading kelin. Second, I propose the selection of the excellent cyclists who have retired not long ago as kelin cyclists and management personnel. And several factors need to be considered comprehensively to select the persons of similar tastes and non-cyclists, such as physical fitness, motive, perseverance, and capabilities as professional kelin cyclists. To select the kelin personnel, it is preferable to give priority to the experienced cyclists and educate them. Third, I suggest some activities for the project of kelin, which include the supports for the enlargement of cycling population, training and cycling facilities as well as for the long term field training and the attraction of large scale cycling contests. As for th profit from the project of kelin, it is preferable for us to use it to solve the serious problems caused by the rapidly increasing vehicles. We will have to enact a law to construct the roads for the cycles only, and make a financial in vestment in constructing them. In addition, the profit could be spent on the public utilities for the improvement of educational environment as well as on the solution of the problems for young and old people. Last, I proposed the publicity devices. They include the publication of publicity booklets and the holding of a meeting for kelin explanation. It may be preferable to make a long term plan and make it known to the public by stages.