Introducing the Surf Dog Bike Rack.
The front part of the surfboard rack attaches to the bicycle headtube. The rear rack can attach to a rear seat tube, or to the rear rack you already have on your bike. The splined quick connect tubes make installation and removal a quick and tool free process. Surf Dog are all aluminum and stainless so they won’t rust into oblivion any time soon, and the tubes are even height adjustable since bikes and boards comes in so many shapes and sizes. Weight 5 lbs.
Product info here, buy it here.
Disclosure: I don’t make a dime from this, but Moved By Bikes proprietor Greg is a friend of mine.