What kind of bag do you use? Also, a change from a normal mountain bike (where you sit up) to a bike with drops and a higher saddle may mean you end up leaning forward more, so your weight is on your arms/shoulders as opposed to your bum. It may just be your body using muscles you've never had to use before in such a way.
What kind of bag do you use? Also, a change from a normal mountain bike (where you sit up) to a bike with drops and a higher saddle may mean you end up leaning forward more, so your weight is on your arms/shoulders as opposed to your bum. It may just be your body using muscles you've never had to use before in such a way.