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The Mayhem 130 and 150 frames use a standard SRAM UDH (“Universal Derailleur Hanger”),
which is available from spotbikes.com, or any SRAM parts retailer.
1. Remove the rear wheel and the rear derailleur from the frame. It should not be necessary to
remove the chain or cable/housing from the derailleur:
2. The derailleur hanger is removed using a 8mm hex tool on the outboard screw. The screw is
reverse threaded– it must be turned CLOCKWISE to remove. When replacing the derailleur
hanger, clock the hanger with the front lower face against the stop molded into the frame as
directed by the arrow above. Torque: 25.0Nm (220in-lb) COUNTER CLOCKWISE to ghten.
Rear Derailleur Hanger Removal/Replacement
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