But you should go slow and easy during the break in period. One of the reasons for that period is to shake off any lose parts. For instance, during my break in ( 2 years ago) I went to shift and there was no shifter, it fell off. Went back to dealer and he went out and checked some bikes on the floor and realized that there was no loctite on any of the shifter pegs.
Anyway, the point it is to take it easy for a lot of reasons.