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
John D. –
As an avid cyclist, I rely on my Threo to ensure chain wear is on point. It helps me avoid costly repairs. Durable and easy to use, it’s a definite game-changer for my rides.
Alice –
This chain checker is a game changer. It’s simple to use and has helped me maintain my bike’s performance. Having it in my toolkit makes checking for wear straightforward and quick.
John –
I’ve been riding bikes for years, and this tool has made a noticeable difference in keeping my gears running smoothly. The accuracy is top-notch, and it’s easy to read.
Emma –
As a biking enthusiast, this wear indicator is exactly what I needed. It’s saved me from unexpected chain issues by letting me check wear before it’s too late. Highly satisfied!
Mark –
Works great, very handy!
John –
Reliable tool! Easy to use, very accurate wear indicator.
Emma –
Great for quick chain checks, though the build quality could be improved slightly.
Alice –
Absolutely essential for every cyclist. Easy to use and accurate, this tool saves me from unexpected chain replacements. Highly recommended for regular maintenance.
Michael –
Simple tool, works perfectly.