I recently purchased a 45 solo. It is titled as a 53 because it has a 53 G motor. The front end is an older I beam springer and it has a 19 inch front wheel. I don't know how old the frame is. I am posting some pictures here in an attempt to get feedback from readers to give me more information of what I actually have. If anyone needs any more pics to help, just let me know I know that it is just a rider but should make a pretty cool bike to ride. Thanks for the help!