Peace, mercy, and blessings of God be upon you. I have four bicycles for sale. Two Rambo, one Cobra, and one children's bicycle. The black one doesn't need anything except a tire. The Cobra doesn't need anything except the handlebars need tightening, the handlebars turn on their own. I don't know what the solution is. The blue bicycle doesn't need anything except the chain falls off. The burgundy Rambo needs a tire. Bicycle sizes: Black Rambo size/20. Burgundy Rambo bicycle size/16. Cobra bicycle size/20. Blue bicycle size/14 or 16, I'm not sure. And for auction.