... wet,multi-plateGearshift:1-0-2-3-4-5-6Max.power andorresponding rpm:19.3kw/7500rpmMax.torque ... realize a significant vibration-damping effect of the engine.Full aluminum cylinder treated with porcelainized coating ... and longer service life.--------------------------------------------------------------------- 300CC Motorcycle engine,ATV Engine,300cc water cooled ,Loncin Engine,single cylinder,4-stroke