seeing how i have a skyrider of my own (60-61), i am totally diggin it! you got what looks like mine started off as b4 i got it years ago as a hotmess and finally got it the way i wanted it last summer. same chainring as yours and around the same year as yours, too (59-61 or poss a 62 or 63). i love the frame geometry of these bikes and they ride really nice, too. made by AMF and sold as roadmasters, if your curious. great find!