Using your SurRon Light Bee X 420 Gold Chain is easy. First, make sure your dirt bike is turned off and on a stable surface. If you're using the 48T factory sprocket, use the 420/106 links O ring chain. For the 58T upgrade sprocket, go for the 420/112 link O ring chain. When installing, ensure the chain is properly aligned and tightened. As for maintenance, regularly clean the chain with a mild degreaser and lubricate it to keep it running smoothly. Check for any signs of wear or damage frequently, and replace the chain if needed to avoid any issues with your bike's performance.