-Pro level full chromoly frame design with internal headseat headtube, 18" top tube,chromoly fork and 2pc. bar, front-load stem, 36 hole Alex rims with 3/8" front and 14mm cassette rear hub, 33-15 gearing, 152mm tubular 3pc. chromoly crank with Mid BB, and Tektro rear brake. This is a good trail or park bike for the smaller intermediate level rider 44" to 54" tall.