S.C. Code Ann. § 56-5-3530: Cyclists; stop signs.

(A) A cyclist approaching a stop sign shall:

(1) slow down;

(2) if required to avoid an immediate hazard, stop at the stop sign before entering the intersection; and

(3) cautiously enter the intersection and yield the right of way to pedestrians lawfully within an adjacent crosswalk and to other traffic lawfully using the intersection.

(B) If a cyclist meets the requirements provided in (A)(1) of this section, then the cyclist may cautiously make a right or left turn, or proceed through the intersection without stopping at the stop sign.