**Chain Wear Indicator Gauge*** Art Nr: 720062* EAN Code: 8590831510363Chain wear tool to measure the extent of chain wear and when a chain needs replacing.Regular checking of chain wear (stretch) and timely chain replacement avoids the premature wear of other more expensive drivetrain components such as cassette sprockets, chainrings and rear mech pulleys.Specification:* Material: Stainless steel* Design: One-piece* Chain compatibility: 1/2"* Measured from chain inner link plate to chain inner link plate.* Is placed with the two short pins (guides) on a chain link* The long pin of the opposite side slides into the chain link plate* The long pin falls completely into the chain link plate? the chain should be changed* Is suitable for measuring the wear of bicycle chains**Chain Wear Indicator Gauge with Scale*** Art Nr: 720114* EAN Code: 8590831510387Chain wear indicator which measures the degree of chain wear to determine the appropriate time to replace a bicycle's chain.Worn out chains need to be promptly replaced, otherwise the life of the drive train components (cassettes, chain rings) can also be decreased as well.* The degree of wear (stretch) is indicated on the scale.* The measurement is taken between the inner link rollers to ensure an accurate measurement.