Front Bag Carrier Mount Adapter Before Installation: Many folding bike frames lack preset screw holes, making it impossible to install a front rack, thereby limiting storage space and convenience during rides. After Installation: Designed to fit folding bike head tubes with a diameter of 50-52mm, this product allows for effortless installation of a bike front bag. It adds front storage space to your bike, making it ideal for daily commutes or long-distance cycling. Experience enhanced convenience and comfort on every ride. Crafted from high-strength high-quality material, this mount boasts excellent resistance and load-bearing capacity. It securely supports a bike front bag or other accessories, significantly increasing storage capacity. Its design ensures long-lasting performance . Please measure before ordering: Compatible with folding bike head tubes with diameters ranging from 50-52MM Color: Black Material: Metal Package Contents: 1 * mounting base 8 * screws+installation tools Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.