Our bicycle chain tension idlers are made of high-strength aluminum alloy, wear-resistant and anti-corrosion
The bike chain tightener's surface is anodized with bright colors and luster,anti-oxidation.Would definitely Making your bike more cool and fashion.
The bicycle chain tensioner can prevent the chain from falling off and avoids tangle and keeps the frame from scratching. Provide a simple, effective and adjustable way to tension a single speed system.
Easy to install and no need other complicated tools. Installation is simple and quick, make chain adjustment easier.
Universally use for 14 inch (412)single speed mountain bikes road bicycles folding bikes cycling,light weight and durable.