30-40T легко установить высокопрочный BB горный велосипед части прочный однодисковый алюминиевый сплав горный велосипед Сверхлегкая цепь руководство

Description:
Protect chain from falling out.
Applicable chain ring range: round for 30-40T.
Made of aluminium alloy, high-strength, sturdy, lightweight, anti-rust, non-deformation and durable.
Simple painted surface, fashion appearance.
Easy to install, no other tools required.
Specification:
Material: 7075 aluminum alloy CNC; nylon
Color: black, red
Support for Spec: BB mount
Range: round: 30-40T
Package Includes:
1 pcs chain guide
1 pc spacer
Note:
1. Due to the different monitor and light effect,
the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3cm measuring deviation due to manual measurement.