Birzman Chain Wear Indicator I (1-12 Speed)

Sale priceRs. 790.00


The Birzman chain wear indicator tool measures wear and stretching on single to 12-speed chains, so that you know when it’s 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 aluminium and titanium cassettes, the tolerance is 0.75%, whereas chains on steel and singlespeed sprockets should be replaced at 1% wear at the latest. For precise measurement, the Birzman chain wear indicator tool clearly shows the chain stretch. A practical chain hook on the other side of the tool is a welcome aid to hold the chain when opening and closing chain links.


  • High-strength chain wear indicator with 3 hooks
  • For precise & easy chain wear measurement
  • Wear indicator from 0.5% (11/12 speed), 0.75% (aluminium/titanium) and 1% stretch (steel)
  • Integrated chain hooks for chain installation/removal
  • Hole for hanging
  • CNC machined
  • Material: stainless steel

Sizing Information

  • Std. Size

  • Country of Origin - Taiwan

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