Product Overview
A professional-grade alignment tool that makes rear derailleur setup fast and foolproof. Using an integrated laser guide, this tool allows you to precisely adjust limit screws and alignment – whether you're a pro mechanic, a weekend rider, or a shop trainee. The laser projects a straight line that eliminates guesswork, so you get perfect shifting every time.

Key Features
🎯 Laser‑Guided Precision – Projects a straight reference line for accurate derailleur alignment and limit screw adjustment
⚡ Works with All Derailleurs – Compatible with 7, 8, 9, 10, 11, and 12‑speed rear derailleurs
🔧 Quick Setup – Mounts directly to the derailleur fixing bolt using a hex socket or screw – no special tools required
🏆 Pro‑Grade Results – Eliminates trial‑and‑error, reduces setup time, and delivers consistent, precise shifting
🛠️ Durable Build – Made from aluminum and steel – lightweight yet robust for shop or home use

Tech Specs
- Application: Bicycle rear derailleur fine‑tuning and alignment
- Material: Aluminum body with steel components
- Weight: 466 g
- Compatibility: 7, 8, 9, 10, 11, and 12‑speed derailleurs
- Mounting: Hex socket or screw to derailleur fixing bolt
- Laser Type: Integrated alignment laser

What’s Included
1 × Laser derailleur alignment tool
1 × Mounting hardware (hex socket)
1 × User guide for derailleur adjustment steps
“Set your derailleur. Follow the line. Shift with confidence.” 🔧🎯🚴