High carbon steel is good.
1. Strength and durability: High carbon steel has high strength and can withstand the use and impact of children on uneven roads. Good durability, not easy to be deformed and damaged. Nylon fiberglass has low strength and low durability. High carbon steel can maintain stability and durability under long-term use and harsh conditions.
2. Economical and affordable: High carbon steel is a common and widely used metal material with low production cost and easy processing and manufacturing. Using high carbon steel as a material for children's balance bikes is more economical and helps control the price of the product. Nylon fiberglass is a composite material with high manufacturing and processing costs, which will increase the price of the product.