Litepro Folding Bike Guide Wheel LP Oval Chainring Chain Zipper Rear Derailleur Chain(Black)

1. Material: aluminum alloy
2. Weight: 58 grams
3. Application: single-speed folding car, etc.
4. Purpose: reduce chain tooth feel
5. Features: CNC processing and forging, not easy to deform, high strength, good hardness, not easy to rust, beautiful and practical, simple and convenient to install