Features: Improve the performances and stability of bicycles wheel Hubs systems. This conversion rod is consist of good-quality aluminum alloys, ensuring long-terms additional functionality for your bicycles component. Suitable for passionately cyclists and cycling enthusiasts who hope to improve the functionality and reliability of their cycling equipment. The conversion poles is very suitable for both leisures cycling and competitive cycling activity, providing a smooth and efficient cycling experiences. Provide excellent strength and accuracy for every cycling adventure, thereby enhancing the performances of the bicycles. Specifications: Color:Six Elections Dimension:112mm or 4.409in 122mm or 4.803in Component:Aluminum Alloys Package Includes: 1pc Bicycles Hubs Adapter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.