One of my kids is severely hearing impaired. Still remember her first bike rides without training wheels up and down the street in front of the house. We live on a hill. She was coasting down the hill and I was worried she was going too fast on her little bike. I signed "slow". As she went flying by the house on her bike down the hill she had one hand on the handlebars and was signing "NO" to me with the other.
She is now a teenager and we cycle together occasionally.