This product does exactly what it says, protects your bike from overfill and you from all that useless clicking. One catch, READ THE MANUAL. I have seen some reviews where users will crank up the pump to higher flow. There is absolutely no need to and you risk making a big gas mess if you do. The manual says use the lowest flow on a gas pump nozzle. That works just fine and clicks off at the top. My ride is a Piaggio MP3-250 which has an unusual filler location, down by your feet. The standard unit fits perfectly on my gas tank filler and I get a full tank on the first click. My only regret is that it does not work on my wife's Vespa LX-150. They have a plastic insert in the gas filler that prevents the McCuff filler from getting a good seal. Great product.