Product Introduction
Next‑generation precision chain wear indicator for quick drivetrain diagnostics. Laser‑cut three‑point contact measures chain elongation accurately at 0.5%, 0.75%, and 1.0%. Compatible with 5‑ to 13‑speed derailleur chains (including flat‑top, 12‑speed MTB/road, and 13‑speed) as well as single‑speed chains. Compact and lightweight for shop or roadside use.
Product Features
🔧 Three‑stage wear indication
Clearly shows 0.5%, 0.75%, and 1.0% elongation – the exact points where manufacturers recommend replacement. Three‑point contact ensures consistent, repeatable readings.
⚙️ Long‑section measurement
Measures an extended portion of the chain to reflect true overall stretch, unlike simple go/no‑go gauges. Easy to use – place, read, and go.
🏆 Durable and portable
Made from corrosion‑resistant, laser‑cut steel for lifelong service. Lightweight and pocket‑sized, it fits in jersey pockets, saddlebags, or tool kits.

Product Specifications
- Chain compatibility: 5‑ to 13‑speed derailleur chains (flat‑top, 12‑speed MTB/road, 13‑speed) and single‑speed chains
- Wear indication: Detects 0.5%, 0.75%, and 1.0% chain elongation
- Measurement method: Three‑point contact, long‑section measurement
- Material: Laser‑cut, corrosion‑treated steel
- Tool type: Manual mechanical precision gauge
- Dimensions: Compact – fits in pocket or tool case
- Weight: Lightweight for everyday carr

Package Includes
1 × Precision chain wear indicator tool
1 × Instruction manual with wear reference chart
🔧 Small tool, big impact – measure with confidence, replace on time, ride smoother.