... narrow tires for select, also caterpillar wehicles for select.360 degree steering in place ,small in turning radius.Driving steady, ... maintain outside ,thus can guarantee transmission effciency odf the chain and more long term service lifeOperating environment,Small volume, ... adjust the Angle0~360°0~360° TE300 MODEL ModelJL300Engine Model B&SRated Power(KW)15.435(21HP)Rotating speed(rpm)3600noise ...