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
Sam –
Simple, effective tool. Indispensable for any cyclist.
Alex –
Accurate and easy to use! Keeps my bike in top shape.
Jamie –
Works well, but could be a bit sturdier.
Oscar –
Fantastic product, helped me avoid costly repairs.
Lucas –
This bike chain ruler is a must-have for any cyclist. It’s incredibly precise and simple to use. Provides great insights into the wear of the chain, which really helps in maintaining the bike efficiently.
Ella –
Works perfectly every time.
Tom –
Great chain checker, highly recommend.
Amy –
Excellent tool, easy to use and very accurate!
Alex –
Essential tool for every cyclist. It easily checks chain wear, ensuring longer bike life. Compact and straightforward to use. Highly recommended!