Fork springs for Sirris F43 forks are sold as individual units. Two springs are required for your fork. You can combine two sequential rates to get an “in between” total fork spring weight if desired.

For example, our standard Surron Trail Med Rate is 4.6 N_MM. It has a 4.4 one side, and 4.8 on the other side to get the average of 4.6 for the fork.

Oil and clicker settings should be the same on both sides, you do not need to individually change any settings on your left or right fork leg if you use two different spring rates.