Check the listing for details. Lightweight Single Disc Mountain Bike Chain Guide 32T-38T Protector System. Color: Black, Condition: New. Listed at 31.85 USD. Description: Use ultralight high-strength AL7075 Aluminium Alloy with high quality CNC machined.It can be used on the tube in the frame to effectively prevent the chain and chain from jumping.It needs to be small and light, and it must be strong and durable, so we use a solid aluminum alloy as a material with high hardness and long service life.Novel hollow design, reduce weight, anti-chain effect is good, used for single-disc sprocket, make riding smoother and easier.Perfect for 1x system 1PC Mountain Bike Chain Guide Ultralight High-strength Bike Chain Guide 32T-38T. Specification: Material: 7075 aluminum alloy CNC; nylon Range: round : 32T-38T Weight: 200g Package: 1 pcs chain guide Perfect for 1x systemDimension: 180*180*4MM Package Includes: 1 Piece Chain Guide Note: Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement. On Jul-28-21 at 01:07:05 PDT, seller added the following information: