Brake Systems
Adjustments
WARNING: You must adjust the front and rear brakes as written before you ride the bicycle.
1.Put the brake shoes in the correct position:
-Loosen the nut [7] of each brake shoe
-Adjust each brake shoe so it is flat against the rim and aligned with the curve of the rim
-Make sure each brake shoe does not rub the tire
-If the surface of the brake shoe has arrows, make sure the arrows point toward the rear of the bicycle
-Hold each brake shoe in position and tighten the nut.
2.Test the tightness of each brake shoe:
-Try to move each brake shoe out of position
-If a brake shoe moves, do Step 1 again, but tighten the nut tighter than before
-Do this test again, until each brake shoe does not move.
3.Stretch the cable:
-Hold both brake shoes against the rim
-Loosen the cable clamp
-Pull the cable tight and tighten the cable clamp
WARNING: Do not overtighten the cable clamp. Overtightening the cable clamp may cut 
the cable and cause injury to the rider or to others.
-Squeeze each brake lever firmly 20 times
-Hold both brake shoes against the rim and loosen the cable clamp
-Pull the cable tight and tighten the cable clamp.