Color as shown Name: Universal Chain Stabilizer Material: Nylon plus fiber + plastic Weight: Approximately 45.3 grams Compatible with bikes featuring a 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: This chain guide helps prevent the chain from falling off and reduces chain interference during riding. It effectively minimizes chain drop and chain skipping. Essential bicycle accessory: Designed for use with single-piece flywheels to promote smoother drivetrain performance. Compatible with bicycles equipped with a 1x drive system for one-piece sprockets. A practical addition for cyclists looking to enhance their bike’s reliability. Easy to install: No need to disassemble the crank. Simply adjust using a wrench for quick setup. High-quality material: Constructed from durable, high-strength nylon, this mountain bike chain guide is 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 also resistant to dirt and complements bicycles of various styles and colors. Notes: 1. Due to variations in computer monitor displays, actual color may differ slightly from the image shown. 2. If you have difficulty selecting the correct size, feel free to reach out for guidance. Recommendations provided are for reference only. 3. Mixed item, color, and size orders are accepted. Package includes: 1 x Bicycle Chain Guide