Here we have my current project, a modified Eldorado frame with a 3 inch drop on the seat. The welds were ground off by a previous owner, the support channel under the main "spine" was shortened and then the main "spine" was bent down 3 inches and re-welded below the rear loops. This makes for a very interesting modification. The rear tabs normally used for the luggage rack have been ground off to make for a smooth "Loop" on the rear.
See how the rear of the main spine has been lowered.
Here you can see how the front of the main spine was bent downwards.
Notice how the support channel was cut, this will be cleaned up later.
Aaahhh the smooth "Loop".