The pedals are equipped with a special adjustment system. Make sure when installing, that you have selected the pedal, which corresponds to the right crank. The pedal assigned to the right crank is with the Letter r (right) and the pedal assigned to the left crank with the Letters L (Left) characterized.Make sure the threads are free and, if possible, grease it easily. Always screw the pedals with the crank in the direction of travel. Make sure not to screw the pedals too firmly, as this could damage the threads and make it unusable.