Tool Cyclus Tools for frame dropout/hanger alignment (720010)

Use this tool to check and correct the exact geometric position and angle of the rear derailleur hanger in relation to the frame dropout. First, unscrew the derailleur and mount the rear wheel in the frame.

• 1. Remove the nut from the threaded spindle, screw the tool into the derailleur hanger as far as it will go, and secure it with the nut (SW 17).
• 2. Using the tool’s measuring pin, check at several points that the distance from the wheel rim is even.
• If the distances differ, adjust the derailleur hanger position accordingly by applying gentle pressure to the tool to bend the hanger straight.
• Dropout control with Art.-Nr. 720011.