Although some golf shoes have molded soles, most have removable spikes that you replace when they wear down. And if you still have golf shoes with metal spikes, you'll have to replace them with plastic spikes because very few golf courses allow metal spikes. Spike manufacturers recommend you replace your spikes every 10 to 15 rounds of play, but that's rarely necessary. Amateur golfers replace their spikes about once or twice a year, depending on use. If you walk every round, you should replace them more frequently, but the durability of the brand of spikes is also a factor. To remove and install spikes, you'll need a spike wrench that matches the design of your brand of spikes. Be sure your replacement spikes have the same thread system as your old spikes.
Clean the bottom of your golf shoes with a stiff-bristle brush like a spike or club brush. Remove as much dirt and grass as possible.
Align the posts in the spike wrench with the notches in the spike. While pressing downward into the sole of the shoe, turn the wrench counterclockwise to remove the spike. If the spike won't turn, slide a small flat-head screwdriver between the spike and the sole of the shoe. Lift the spike slightly to break the dirt seal, moving the screwdriver around the circumference of the spike. Try the wrench again to remove the spike.
Check each spike housing for dirt or other debris, as the new spike will not attach correctly if the housing is dirty. Brush away any remaining dirt or grass.
Insert a new spike into the housing and turn the spike clockwise with your fingers to set the spike. Then tighten the spike by turning it clockwise with the wrench. Some spikes have threads and screw in, while others have one of two locking systems that require just a quarter-turn. With the locking system, you will feel the spike lock into place. Some lock twice, so read the instructions to be sure which type you have.