I've said this before and here goes again. Once the belt develops a chirping noise that won't go away except briefly, either due to spraying silicone or cleaning, it will always come back. A real quick test is to lift one of the seat bottoms and check for black dust. That dust is aluminum oxide that has been ground off the rear sprocket by the belt. Another test is too stick your camera/phone under there and shoot a pix of the sprocket at the front where the belt is off of it and the bare teeth are exposed to view. If it is wearing it will really stick out. The sprocket is anodized and that is very hard but it is also very thin. Once that coating has been ground through then the belt is eating into the very soft aluminum of the casting. Like butter. Once that happens then game over. The belt is practically indestructible. It should probably last about 100,000 miles. Mine ate three sprockets and still looks great after cleaning. It is performing well with the Super Max sprocket. No more dust and very quiet.
