order bynamepriceyear20232021-2220202019201820172016201520142013201220112010200920082007 AUTHOR Ultrasonic 27,5 2023 Tripple butted alloy frame. RST F1RST air fork. SHIMANO Deore groupset. AUTHOR Sonic 27,5 2023 Tripple butted alloy frame. RST Aerial air fork. Hydraulic TEKTRO brakes. pg. 1 of 11