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
Jamie –
Accurate and reliable. Great value for money!
Pat –
Works well, but could come with clearer instructions.
Emily –
Really useful, but shipping took longer than expected.
Luke –
Simple and effective. It’s a must-have for anyone who wants to maintain their bike in top condition.
George –
An essential tool for any cyclist. Helps monitor chain wear accurately.
Anna –
Works like a charm!
Bella –
This chain checker is a must-have for all cyclists. It’s accurate and helps extend my drivetrain’s life by catching wear early. Highly recommend!
David –
Does the job well, but the instructions could be clearer.
Alice –
Great tool for monitoring chain wear. Easy to use and reliable results!
Carlos –
Excellent! Keeps my bike in top condition.