1Pcs Bicycle Chain Wear Measurement Indicator for City Bicycle Electric Bicycle MTB Road Bike Foldable Bicycle

Easy control: allows quick and effortless control of chain wear. Accurate displays: High-precision displays of 1.0 (for steel gears) and 0.75 (for aluminum gears) for accurate wear measurement. Robust steel construction: made of high-quality Cr-Mo steel for excellent durability and reliability. Measurement without disassembly: allows measurement without disassembling the chain, which saves time and facilitates maintenance. Note on wear behavior: steel gears have higher wear resistance, therefore slightly greater wear is acceptable.