... -Stroke, Air-cooling Displacement:58cc Rated output power and relevant speed: 1200W/7000rpmmodel:5200Engine: 1E43F, single - Cylinder, 2-Stroke, Air-coolingBore ... Stroke: 43X31mmDisplacement: 52ccRated output power and relevant speed: 2200W/7000rpmMax.torque: 2.0N.m/7000rpmIdle speed: 2800rpmIgnition: CDIStart: recoil pull startCompression ratio ...