Premium 8.5-inch reinforced inner tube designed for electric scooters, featuring durable high-grade rubber construction with 3-ply thickness for superior puncture resistance. Precision-engineered bent valve stem ensures seamless compatibility with inward valve designs while maintaining airtight performance. Ideal replacement part for high-performance e-scooter maintenance and urban commuting accessories. Factory-direct pricing enables bulk purchases for repair shops and distributors seeking OEM-quality components. Reinforced shoulder design withstands urban terrain pressures including potholes and curbs. Exact 8 1/2*2 dimension specifications guarantee perfect fit for standard electric scooter wheel assemblies.