OK, all purists: stop reading this.
Over the years I had collected a large amount of Harley parts and every time I looked at them I thought the same thing - I should build something cool from that stuff sometime. I had enough to build a bike and a
half.... So I decided to piece together a Road Glide style bike. Not that I really needed another bike and it wasn't exactly the right time to throw money at yet another project. The plan that started to develop in
my brain wasn't based on reasonable things either so, in short - the perfect project. :-)
I had this 1981 FLT Harley frame sitting in the garage for years. It was straight in the front section but had a bad rear section. Since I have a title to it I wanted to save it and build a new bike from it.
I fished a 2010 touring frame out of the trash container at a friendly H-D dealership. The neck had been cut off and sent to the MoCo so they could send a new frame with the same VIN.
The question was if I could create one good frame from the parts I had. I took measurements and compared angles etc. and came to the conclusion that those frames haven't changed at all regarding their
geometry and the main mounting points! The differences are in fact so small that a lot of things are interchangeable with easy modifications. So I went for it. I cut off the neck of the 1981 frame and the 2010
frame was tacked to a perfectly level welding table to make sure it wouldn't move. Then cuts were made to the down tubes so the 1981 down tubes would slide in. We built a jig to make sure the frame parts lined up properly. After spending a good hour on adjusting things everything looked good and we tacked the frame sections together.
The outer diameter of the 1981 down tubes coincides with the inner diameter of the 2010 down tubes so the old section fit right into the new. The backbone square tube is the same size. Only the rolled edges are a little more pronounced. Easy to blend but that portion is covered by the tank anyway.