About this item

• REGULAR CHAIN INSPECTIONS: Regular chain inspections can prevent expensive damage to the rear cogs and chainrings caused by worn-out chains. By replacing worn-out chains in a timely manner, you can save money on repairs and extend the life of your bike.
• ACCURATE AND VERSATILE: This chain checker accurately measures chain stretch of 0.75% or 1.0%, making it easy to determine when to replace your chain. Suitable for 7 to 12 speed chains, including Shimano, Sram, Campagnolo, KMC, and other brands.
• EASY TO USE: Simply place the checker over a length of chain and read the measurement. It provides clear guidelines for when to replace your chain: <0.75% Wear: No need to replace; ≥0.75% Wear: Recommended to replace; ≥1% Wear: Replace immediately.
• PROFESSIONAL QUALITY AND COMPACT: This precision laser-cut tool is constructed with high-quality materials, designed to last, and easy to store. Its compact size makes it a must-have tool for bike mechanics, enthusiasts, and everyday riders alike.
• RICH FUNCTIONALITY: In addition to chain inspection, this tool also includes a chain hook, screw diameter and length measurement, Presta valve core removal, extension rod removal, and Presta valve nut removal. With these features, this tool is a versatile and valuable addition to any cyclist’s toolkit.