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
Alex J.
Chains wear out over time, but this tool makes it super simple to keep my bike running smoothly. It’s compact and easy to use, and I feel like a pro keeping my bike in tip-top shape!
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!
Lisa T.
Incredibly handy tool! It made chain maintenance so much easier. I appreciate its compact size and durability. Perfect for both long road rides and mountain trails.
Sam C.
Keeps my bike in great shape. Very useful!
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.
John
Reliable tool! Easy to use, very accurate wear indicator.
Emma
Great for quick chain checks, though the build quality could be improved slightly.
Ethan
It’s a useful tool, but I wish it came with clearer instructions. Once you figure it out, it helps prevent over-worn chains. Great value for the price.
Michael
Simple tool, works perfectly.
Alice
Absolutely essential for every cyclist. Easy to use and accurate, this tool saves me from unexpected chain replacements. Highly recommended for regular maintenance.