Enhance your mountain biking experience with this high-performance 27-speed Mountain Bike Derailleur, designed for durability, precision, and smooth gear shifting. Crafted with a lightweight yet robust plastic steel main body, this derailleur offers exceptional strength and impact resistance, ensuring long-lasting reliability and compatibility with a wide range of bike models. Key Features: · Durable Plastic Steel Construction: Combines lightweight material with high strength and impact resistance, providing a sturdy and reliable derailleur for all your mountain biking needs. · Clear Digital Gear Display: Features a transparent window design with a digital gear and speed pointer display, allowing you to easily monitor your speed and gear changes at a glance. · Galvanized Variable Speed Wire: Equipped with rust-proof galvanized inner wires that deliver standard variable speed performance, enhanced by high roundness grinding and end spot welding technology for smooth and reliable shifting. · 27-Speed Dedicated Setup: Includes a left 3-speed front variable speed dial and a right 9-speed rear variable speed dial, offering excellent compatibility with various bike brands and models for versatile riding options. · Ergonomic Lever Design: The shift lever is ergonomically crafted for comfortable hand feel, fast and precise gear changes, featuring a concave point for convenient finger positioning and a large contact area for effective force application. · Fine Adjustment Speed Change Knob: Allows quick and accurate tuning of gear shifting strength with a brake-close bite texture that prevents slipping and enhances durability. · Universal Mounting Caliber: Designed with a standard 22.2mm (0.9in) caliber and equipped with alloy hex socket screws for easy installation, excellent stability, and broad compatibility. Specifications: · Item Type: Mountain Bike Derailleur · Weight: Approx. 280g / 9.9oz · Material: Plastic Steel + Galvanized Variable Speed Wire · Speed: 3x9 (27-Speed Dedicated) · Left Front Variable Speed Line Length: Approx. 178cm / 70.1in · Right Rear Variable Speed Line Length: Approx. 205cm / 80.7in · Installation: Straight Mounted Dial · Caliber: Approx. 22mm / 0.9in Package Includes: · 1 x Mountain Bike Derailleur This Mountain Bike Derailleur combines durable materials, advanced design, and precise engineering to deliver smooth and reliable gear shifts. Its ergonomic features and clear digital display enhance riding control and comfort, making it an excellent upgrade for mountain bike enthusiasts seeking performance and versatility.