Here’s an improved version of your description:
“I’m selling my road bike, purchased in 2021 for RM980. It has been rarely used and remains unmodified. The current condition is about 7/10—just a bit dusty, but the tires are fine and only need pumping. I’m asking RM400 (negotiable). I’m too busy to clean or prep it, so I’m letting it go as is. Feel free to PM me if you’re interested!”