Description: 【Premium Aluminum Alloy Construction】: This bike seat post clamp is crafted from quality aluminum alloy that provides exceptional strength and wear resistance while maintaining lightweight performance. The sturdy material ensures reliable saddle security under rigorous riding conditions. Ideal for mountain bikers and road cycling enthusiasts 【Universal Bike Compatibility】: Designed to fit most mountain bikes, road bicycles, and folding bikes. The versatile sizing accommodates various frame specifications without modification. Great for multi bike households and repair shops 【Secure Locking Mechanism】: Features a precision engineered tightening system that maintains consistent clamping force without slipping or loosening during rides. The reliable mechanism prevents unexpected saddle movement. No more adventurous seat slippage or constant adjustments mid ride 【Easy Installation Design】: Enables quick replacement of worn or damaged clamps. The straightforward design eliminates complicated procedures. Great for DIY bicycle maintenance and emergency repairs 【Optimized Weight Distribution】: Engineered to provide even pressure distribution around the seat tube, preventing frame damage while ensuring maximum holding power. The balanced design protects your bike's integrity. Ideal for high performance cycling and rough terrain riding Specification: Material: Aluminum Alloy Size Chart:Inner Diameter: 31.8mm/1.25inch Package Includes: 1 Bike Seat Post Clamp Note: Please allow slightly errors due to manual measurement and different monitors.