My Light 15 that I sold didn’t have one above the front seat. As a result, driving with the windscreen fully open in the summer made it a bit baggy and I’d have to tuck it in from time to time. I thought it odd that there wouldn’t be a rib there. The 11BL that I have now has a rib in that spot. Might be a good idea to ask Renel about that before ordering.
Anonymous