Here's an early prototype of the lid to close off the head opening. This would go a long way to making being caught in another spring shower more acceptable. I could have the cover beside me in the velo and deploy it while riding. This would be quicker to do rather than stopping to put on the Flevobike roof. From the weather forecast I may be able to try it out tomorrow morning. The lid was an experiment using a new material called Innegra that didn't quite work out as well as hoped. If it is a good solution I'll make another cover that matches the velo better.