Color as shown Name: Universal Chain Stabilizer Material: Nylon plus fiber + plastic Weight: About 45.3 g Compatible: Fits bikes with 1x drive system for one-piece sprockets Specifications: 31.8–34.9 mm / 1.25–1.37 inch installation, E-type installation Effective chain protection: The chain guide helps prevent the chain from falling off and reduces chain interference during riding. Provides reliable chain retention and minimizes chain drop and skipping. Necessary tool for bicycles: Designed for use with single-piece flywheels to promote smoother drivetrain performance. Compatible with bikes equipped with 1x drive systems and one-piece sprockets. A practical bicycle accessory for riders looking to enhance their bike's reliability. Easy to install: No need to disassemble the crank. Simply adjust using a wrench for quick and convenient setup. Premium material: Constructed from high-quality, durable nylon composite material. Lightweight, wear-resistant, and resistant to deformation. Fade-resistant finish: Features a black surface that resists fading and maintains a clean appearance. The classic black color is dirt-resistant and complements a wide range of bicycle frame colors. Notes: 1. Due to variations in screen displays, actual color may differ slightly from the image shown. 2. If you have questions about sizing, please refer to the product specifications. Suggestions may be provided for reference only. 3. Mixed configurations of items, colors, and sizes are available as applicable. Package includes: 1 pc Bicycle Chain Guide