Birzman Chain Wear Indicator - 1-12 Speed winteressential What you get is graduated

What you get is graduated compression of 20-30mmHg to reduce impact related muscle fatigue

silver-black/braze-on: 110 g

Silicone gel leg gripper

less maintenance

Birzman Chain Wear Indicator - 1-12 Speed winteressential What you get is graduatedThe Birzman chain wear indicator tool measures wear and stretching on single to 12 speed chains, so that you know when its time to replace it. A worn chain causes poor shifting performance and reduces the service life of sprockets and chainrings by wearing down the teeth. Regular checking for chain wear and a timely chain replacement prevent costly premature replacement. 11 and 12 speed chains should not be stretched more than 0. 5%. When using