The strap is to hold the top out of the way when you have it in service position, you run it up to the front of the top and hook the loop over the protrusion that fits into the windscreen when it's closed.
The strap is to hold the top out of the way when you have it in service position, you run it up to the front of the top and hook the loop over the protrusion that fits into the windscreen when it's closed.