For Optimal Light Action Performance Tighten the Stud Bolt Firmly into the Frame and Then Reduce the Spring Tension with a 12mm Open Faced Wrench at the Mushroom Cap to the Minimum Necessary to Pull the Pads From the Rim. The Additional Spacers Included Can be Added Between the Pad and the Brake Arm to Assist in Keeping the Arm Clear of the Tire Either When Using Wide Tires or Due to Pad Wear When Changing Pads be Sure to Change Your Cable so as Not to Use the Crimped Portion of the Cable.   MOC V+ Brakes are Licensed with Our Friends at Marinovative Who Originated Many of the Design Elements of the Brake.