Using your 35mm Trail Bike Stem is easy. First, make sure your bike is suitable for this stem and that it's not a carbon - handled or carbon - steered bike. Just attach the stem to the appropriate parts of your bike according to the standard bike assembly process. When riding, you'll enjoy the stability and performance it offers. As for maintenance, regularly check for any signs of wear or loose parts. Clean it with a mild bike cleaner and a soft cloth. If you notice any issues like cracks or excessive looseness, it's best to replace the stem right away. This will keep your bike running smoothly and ensure your safety on the trails.