Classic gauge with 0.75% and 0.5% wear/extension indicator for bicycle chain.
A worn chain causes inaccurate shifting and wear on sprockets and cogs, making repair/replacement of bike parts much more expensive if necessary.
This scale model replaces the old one, it's longer - check it out!
This smaller model replaces the older model, it's longer - it checks a greater number of chain links, thus measuring wear more accurately, it's also suitable for 11-speed chains.
Wear values and logo are stamped on the scale for longer life and better readability.