Introducing the Universal Bicycle Chain Guide for Crankset Stabilization. This chain guide is designed to effectively prevent the chain from falling off and reduce chain beating. It is compatible with bikes equipped with a 1x drive system for one-piece sprockets. The chain guide is made of high-quality nylon plus fiber and Saigang engineering plastic, ensuring durability and stability. With a weight of approximately 45.3 grams, it is lightweight and won't add unnecessary bulk to your bike. Installation is quick and easy with two options available: 31.8MM-34.9MM installation or E type installation. No need to remove the crank, simply use a wrench to adjust the chain guide. This makes it a convenient choice for cyclists who want to enhance their riding experience without any hassle. The Universal Bicycle Chain Guide is a must-have accessory for riders using a monolithic flywheel. It provides a more stable driving experience, giving you peace of mind during your rides. With its simple yet effective design, this chain guide ensures that your chain stays in place, reducing the risk of accidents and improving overall performance. Included in the package is one chain guide, allowing you to easily install it on your bike and start enjoying its benefits right away. Upgrade your bike's crankset with the Universal Bicycle Chain Guide for Crankset Stabilization and experience a smoother and more reliable ride. Key Features: Effectively prevents chain from falling off Reduces chain beating Compatible with 1x drive system for one-piece sprockets Made of durable nylon plus fiber and Saigang engineering plastic Quick and easy installation without removing the crank Suitable for bikes with monolithic flywheel Provides a more stable driving experience Improves overall performance