Mountain Bike Helmet with Built-In Rear Light – ZK-013 Rucksack The surface of the battery

The surface of the battery cover is smooth and does not easily absorb dust and dirt

making it suitable for mountain bikes

The 9/16 inch axle fits most mountain bikes

the rain pants prevent wind and rain from getting inside while keeping the hems from getting caught in your bike chain

It can be stored directly in a pocket or bag when not in use

Mountain Bike Helmet with Built-In Rear Light – ZK-013 Rucksack The surface of the batteryFEATURES Ultralight and Integrally molded: Designed with an insect net for added protection. Durability: Waterproof and shockproof, ensuring safety in various conditions. All weather Safety: Suitable for use in all weather, providing consistent protection. Certified Safety: Comes with CE certification, assuring high safety standards. LED Highlight Taillight: Equipped with a taillight for enhanced visibility and warning during rides. Key Features