Robust aluminum construction Crafted from aluminum alloy, offering exceptional strength while remaining lightweight for your mountain bike. The sturdy frame supports heavy luggage without adding unnecessary weight, making long cycling trips more manageable and comfortable. The durable metal construction resists impacts and daily wear, providing reliable support for all your cargo needs. Adjustable retractable design An innovative length adjustment system expands or contracts to fit your specific requirements. This adaptable rear rack accommodates various luggage sizes and works with different bicycle frames. Tool quick release installation Mount this bicycle carrier to your bike in seconds with the quickrelease clamp mechanism. No tools required for setup or removal, enabling hassle transitions between riding with or without the rack. The secure attachment system keeps the rack firmly in place during rides over rough terrain, while still allowing for quick detachment when needed for storage or transport of your bicycle. Dualfunction cargo for protection This rear rack serves as both a luggage carrier and protective shield. The platform keeps your belongings secure above the wheel while acting as a guard against mud, water, and road debris. This dual functionality helps maintain cleanliness of both your bike and your transported items during rides in various weather conditions. Applications Daily commutes or bike trips where you need to carry work essentials, a change of clothes, or a small toolkit. Weekend rides or short tours requiring extra gear like a compact tent, sleeping bag, or additional clothing. Wet or muddy rides where the rack protects cargo from spray and dirt while keeping the bike cleaner.