S.C. Code Ann. § 56-5-140
Every motor vehicle having no more than two permanent functional wheels in contact with the ground or trailer and having a saddle for the use of the rider, but excluding a tractor, is a "motorcycle".
HISTORY: 1962 Code Section 46-213; 1952 Code Section 46-213; 1949 (46) 466; 1992 Act No. 486, Section 8; 2000 Act No. 375, Section 7.