75 Pa.C.S. § 3508: Pedalcycles on sidewalks and pedalcycle paths.

(a) Right-of-way to pedestrians.--A person riding a pedalcycle upon a sidewalk or pedalcycle path used by pedestrians shall yield the right-of-way to any pedestrian and shall give an audible signal before overtaking and passing a pedestrian.

(b) Business districts.--A person shall not ride a pedalcycle upon a sidewalk in a business district unless permitted by official traffic-control devices, nor when a usable pedalcycle-only lane has been provided adjacent to the sidewalk.