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
Cathal –
Fearghus –
It’s a great tool that lets you know if your chain is worn a little or a lot. Good quality, seems durable and definitely helps.
Teague –
Eamon –
Aidan –
It’s an easy to use and good tool, does what it’s supposed to do. Would recommend.
Ossian –
Joseph –
Zack –
This tool gives an exact reading of chain wear and is very precise. It’s also more comfortable than the ones with a window. Portable and compact as well!
Brian –
Aengus –
I really like this tool. It is super easy to use and it provides the best accuracy. Recommended!
Fintan –
This is the best chain wear gauge I have seen. The measuring pins are placed between two chain links and as you move the gauge the pins spread out indicating chain wear from 0 to 1.
Colman –
Dinny –
This tool works easily with little effort and no guessing!! I like this style as it is very simple to use and easy to read!!👍🏻👍🏻
Tom –
Great tool, but slightly expensive.
Alice –
Highly accurate and easy to use. Improved my bike maintenance!
Alice –
Essential tool for bike maintenance!
Tom –
Accurate wear indicator, easy to use.
Eve –
Durable and reliable. Perfect for checking chain wear regularly. Has become a part of my toolkit.
Mike –
Highly recommend!
Sarah –
This bike chain ruler is incredibly useful! It helps me ensure that my bike chain is always in top shape. A must-have for every cyclist.
Carlos –
Excellent! Keeps my bike in top condition.
Alice –
Great tool for monitoring chain wear. Easy to use and reliable results!
David –
Does the job well, but the instructions could be clearer.
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!
Anna –
Works like a charm!
George –
An essential tool for any cyclist. Helps monitor chain wear accurately.
Luke –
Simple and effective. It’s a must-have for anyone who wants to maintain their bike in top condition.
Emily –
Really useful, but shipping took longer than expected.
Pat –
Works well, but could come with clearer instructions.
Jamie –
Accurate and reliable. Great value for money!
Alex –
Essential tool for every cyclist. It easily checks chain wear, ensuring longer bike life. Compact and straightforward to use. Highly recommended!