Features a 27 speed drive train and front disc brake for both a smooth ride and safety. Mountain bike features a black and white frame and weather resistant finish combined with a lightweight construction. . Front disc brake . Rear linear pull . SRAM X-7 trigger shifters . SRAM X-7 rear derailleur . With SRAM 27 speed drive train . Lightweight alloy frame . Pictured in 18 in. frame .