I didn't like the gas cap that came on my tank. As much as I have into this bike, what to heck spring for a nicely chromed cap. I found one on ebay. Can't guarantee that using it on this application is correct but it has worked nicely for me. The dimensions are correct and as I understand it is vented. It is really nice. It is Honda and labeled GAS on the top of the cap. Probably there are more left. I am not the vendor for these caps nor do I know anyone that is. Just passing along one of my finds.