... 5000-5500rpm max.torque 49 N.m/5000rpm HS700UTV-2 ENGINEType686cc,Water cooled,4-stroke,1-cylinderBore x ... good qualityBreaching the exhilarating experienceBuilding a long standing Huansong 2.Technology and Strength Huansong Group Technical CenterHuansong Group technical ... development,experiment,manufacture,and marketing system,etc..and owns 2 production lines,16 test rooms,5 laboratories and more ...