For sale is a Pro Degign inline radiator cooler. i purchased it from a member on this site, but the OD of this cooler is much smaller (.740) than the ID of the top radiator hose (I think he knew that before he sold it to me, so I’m a little pissed about that. I won’t diss him here, but he knows…). Length of the cooler is about 3 1/4 inches long. It's probably suited for a different bike, but if you can get it to fit, go for it. The price is $20 shipped. Call or text me at two-06-four59-nine523.