Bicycle Chain Checkers

Chain checker & chain hook

Simple type chain checker. You can easily check the elongation of the chain in two stages of 0.5% and 0.75%, which enables speedy work.

A must-have for biking. You can easily know the chain condition anytime, anywhere.

A chain checker that allows you to easily measure the elongation of the chain. Most chain makers recommend replacing the chain with a 1% growth rate as it can cause poor shifting and unstable operation. To use it, simply insert the pin on the back of the main unit between the rollers of the chain... Read More

7th to 11th speed correspondence 0.75% and 1.0% are measured. Chain growth is measured and replacement is judged. If you set it in the chain and the tip fits, it is time to replace it.

A tool that easily measures the distance between the BCD of the chainring and the center of the bolt. Compatible with 4 arms and 5 arms. It is possible to distinguish by simply aligning the stylus of this instrument with the mounting hole of the spider arm or chain ring. * Cannot be used for cran... Read More

Simple type chain checker. You can easily check the elongation of the chain in two stages of 0.75% and 1%, which enables speedy work.