The derailleur hanger alignment gauge by Cyclus Tools allows you to determine the exact geometric position of the gear hanger at the dropouts. A bent derailleur hanger is one of the most common reasons for shifting problems. This tool helps you fix damages quickly and easily.
• Designed to control the alignment of the rear derailleur hanger
• For a precise alignment of the geometric position
• Retains the gear hanger’s functionality
• Protects the frame from damages