The foldable design allows for easy folding and storage, saving space and making it easy to carry. Foldable design. 20 4.0 Fat Tire. 20 4.0 oversized tires provide excellent grip and stability. When unlocked, it effectively absorbs vibrations and improves comfort; when locked, it enhances rigidity, improves climbing and high-speed riding efficiency, and brings a more stable and smooth riding experience.
