Stainless Steel Chain Wear Indicator Ruler – Bike Repair Tool

Precision stainless‑steel chain wear indicator ruler designed for quick, reliable bike maintenance.

• Three‑step measurement: chain loss, length, screw diameter.
• Sandblasted finish prevents corrosion and improves grip.
• Lightweight (≈39 g) and fits both mountain and road bikes.
• Easy to read markings for fast diagnostics.