For E type 31.8 34.9mm Clamp MTB Tensioner Chain Stabilizer Bicycle Chain guide Bike Chain Guide

Label:Yes Size: As Picture Material: Nylon plus fiber + Saigang engineering plastic Spec: 31.8MM-34.9MM mount / E type mount Weight: about 45.3g Color: Black Package includes:1 pc chain guide

Features: It can effectively prevent the chain from falling off and the jumping of the chain. It is used for a single-piece flywheel, and the running is more stable. The installation is simple and convenient. It can be adjusted with a wrench without disassembling the crank.