Features: This road bike derailleur adjustment plate offer compatibility with 12 speed electric shifting systems, ensuring seamless integration for road bikes. Featuring quick releases design for tool frees installation and constructed from alloy, it provides durability, corrosions resistance, and precise shifting accuracy. Designed for cycling who engages in bike modifications and upgrades, this derailleur adjustment plate caters to those seeking safe performances enhancements. Ideal for long distance rides, races, and requiring rapid adjustments or maintenance in various weather conditions, enhances cycling efficiency. With its light weight construction optimizing vehicle load and improving riding dynamics, this essential bike repair tool ensures smooth gear transiting. Specifications: Materials: PC Color: As The Picture Shows Styles: 85x32mm/87x34mm (Optional) Size: Mixed Package Includes: 1Pc Bike Derailleur Adjustment Plate note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!