Works great! Due to the position and spokes, it was difficult to mount the chuck on my bike's rims to inflate or check the air pressure, so I decided to give it a try. No more hassle. I haven't tried leaving it enabled and only using it when checking or seeding as I've heard of problems with leaky extenders. Not this brand specifically, but I just didn't want to take the risk and get stranded. I'll wear it for the winter, let's see how it turns out.