Hello and thanks to you all, I hope I'm posting my question in the right forum, I have been reading posts on this forum for quite sometime now and usually find the answers I need, except for the question I'm about to ask, I recently picked up a 1973 Schwinn DeLuxe Twinn tandem bike and it came with a spare rear wheel, I got to looking at the spare one and it has skip tooth sprocket on it and it's definatley not going to work on my tandem, I believe it's 26 inch size and Schwinn of some sort. So heres my question, does anyone have any idea what this rear wheel came off of? THANKS in advance