Using this Cube Acid Rear Carrier on your 29er MTB is a breeze. Just attach it securely to the rear of your bike. When loading items, make sure to distribute the weight evenly to keep your bike balanced. As for maintenance, regularly check the carrier for any signs of damage, like cracks in the plastic or dents in the aluminium. Clean it with a mild soap and water solution. Avoid using harsh chemicals as they might damage the materials. When not in use, store it in a dry place to prevent rusting or other damage.