Can anybody id this one for me. I picked it up with 6 other bikes. Had to take them all to get the one I wanted. My kneejerk was to say Schwinn based on the sweetheart sprocket but I am not a Schwinn-hugger and I really have no idea. The springer on it is a little different than any of the Schwinn's I've had or seen up close. The frame has some interesting goings on as well. Wishbone rear end with a slight bend in the seat tube down near the crank. Any theories?????