All-terrain compatible bearings: Optimized for complex road conditions such as mud and ice, with a 40% improvement in sealing performance and strong durability
High-speed silent bearing: Precision ball design, operating noise as low as 40 decibels, compatible with 15-20 inch wheels, high-speed stability increased by 20%
Double-sealed leak-proof bearing: Double-lip seal structure, preventing mud, water and dust from entering, and extending service life