About This File 3 pages 114.85KB Dated January 1982 1976 D-250 10-Speed model 61-20RG01 1977 D-250 10-Speed model 61-20RG01 1978 D-250 10-Speed model 81-20RG01 1980 D-250 10-Speed model 91-20RG01 1981 D-250 10-Speed model 91-20RG01