Using the Ergon Allroad 2.5mm bar tape is easy. Start by cleaning your handlebars to ensure a good grip. Then, follow the wrap positioning guide marks on the tape to wrap it around the handlebars as per your preferred thickness and grip texture. Make sure to wrap it tightly for a secure fit. As for maintenance, keep it clean by wiping it with a damp cloth regularly. Avoid using harsh chemicals as they may damage the tape's surface. If it gets wet, dry it thoroughly before using it again. Also, check for any signs of wear and tear over time and replace the tape when necessary.