This mountain bike rear derailleur guide wheel set, offering a complete solution for maintaining and upgrading your bike's shifting system. The guide wheels are crafted from durable materials to withstand the rigors of mountain biking, ensuring performance. They help reduce friction and wear on the derailleur, resulting in smoother and more accurate gear shifts. Features -Color:Black -Material:Plastic,iron -Size:3.80X3.80X1.80cm/1.49X1.49X0.71in -sturdy construction: constructed with durable materials that resist wear, this guide wheel ensures performance and reliability -Wide compatibility: easily compatible with multiple mountain bike models, this guide wheel simplifies the installation process and enhances versatility -Enhanced shifting performance: delivers a smooth and efficient shifting experience, improving your overall cycling performance and ride quality -Lightweight advantage: designed to be lightweight, this guide wheel helps in reducing the bike's weight, making it easier to handle and maneuver -Noise reduction: reduces chain noise and friction, providing a quieter and more pleasant riding experience, especially on rough terrains Package list: 5pcs x rear derailleur guide wheel