Using this AS3 steering stem nut is easy. First, make sure your bike is turned off and on a stable surface. Remove the old steering stem nut with the appropriate tools. Then, simply place the new AS3 steering stem nut in the same position and tighten it up. It should fit smoothly. As for maintenance, it doesn't need much. Just keep it clean. You can use a soft cloth to wipe it down regularly. Avoid using harsh chemicals that could damage the polished anodised finish. When riding, check the nut occasionally to make sure it's still tight. If you notice any looseness, tighten it up right away. And remember, this product comes with a 12 - month warranty, so if you have any problems, contact us.