Because you bend the washer down to keep the sprocket from loosening. If that fails, the sprocket MAY loosen itself and even fall off. That's still better than the alternative. Could you imagine how much a 600cc engine at speed could tighten your front sprocket? No amount of torque could remove it!Originally posted by Liambane
Why would the manufacturers make it so that it would constantly spin the nut in the direction that it needs to loosen it? Unless I'm smoking crack again the shaft and sprocket spin counter clock wise to drive the wheel, and the direction to tighten the nut should be the same direction that it turns. That way there is less chance of it loosening itself. But it could just be me trying to use common sense again.
You don't have to be faster then the bear, just faster then your friend.