It is quite simple if the bike saddle is not comfortable then you won’t sit correctly on the seat. If you don’t sit correctly on the seat most of the time you will create excess pressure in the lower back which in turn will cause shoulder pain and potentially knee pain, from not recruiting the glutes.
Online & face to face assessments. Analysis of posture & movement. Regular exercise progression given.
Combat day to day lifestyle to avoid injury, reduce pain & improve performance.