Optimized Compatibility: The cover is specifically designed to fit for ALLEZ and for SL7 models, ensuring seamless integration with your bicycle's components for enhanced performance. Enhanced Mechanical Speed: This component allows for smoother gear transitions, optimizing the mechanical speed of your bike and improving overall riding efficiency on terrains. Advanced for DI2 Integration: Features compatibility with for DI2 electronic speed systems, providing riders with advanced shifting technology that enhances responsiveness during rides. Construction: Made from high-quality materials, the Cover is built to withstand the rigors of cycling, offering long-lasting durability and resistance to wear and tear. Easy Installation: Designed for hassle-free installation, this product can be quickly mounted onto your bike without the need for tools, allowing you to upgrade your setup in no time. This cover is engineered to enhance your cycling experience by providing optimized compatibility with specific bike models. It ensures smooth gear transitions and integrates seamlessly with advanced electronic shifting systems. Constructed from materials, it promises and resistance to wear, while its easy installation process allows for quick upgrades without any tools. Color: Black Material: plastic Specification: A Package Contents: 1*Bundle Stand Bowl Group Transfer 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.