On 4-hole shoes, cyclists can put the clips on the two front holes to test the position. 2 screws hold the clips in place. Cyclists then need to tighten the screws with an Allen wrench. The angle of the clips is going to affect riding comfort. If the clips are too angled, there will be a bit of pain in the knees. Users need to find the right position to reduce knee pain and have a comfortable riding position. This might also mean that some cyclists will only go to install the clips with the two screws on the read two holes in a 4-hole cycling shoe setup.