Your bike is your freedom. Protect it with accuracy.
Threo Bicycle Wear Indicator accurately measures bicycle chain stretches and features a wear indicator that quickly identifies when it needs replacing. Made from durable materials to suit road and mountain bikes, our compact tool is a must-have for cycling enthusiasts of all levels.
Accurate measurement
Threo indicator accurately measures the stretch of your chain, allowing you to determine when it needs replacing.
Durability
Made from high-quality and durable materials, our compact tool is built to last for road and mountain bikes.
Optimum performance
Maintain your bike in its best condition, preventing the need for expensive repairs. Achieve the best ride performance effortlessly.
More reasons to love our Threo chain indicator
Color Palette 
Active Lifestyle
Compact
Ergonomic Design
Jake R. –
This chain checker has become an essential part of my biking routine. It’s super accurate and has saved me from unnecessary repairs. I highly recommend it to all cyclists!
Sam C. –
Keeps my bike in great shape. Very useful!