Izi zimapereka njira yachangu komanso yosavuta.Mwa kungosamutsa mpweya pamphavu yomwe ili mkati mwa tayala, mkandawo umakanikizira pa mkombero wa tayala kuti ukhale wotetezeka komanso wokwanira bwino.Chitetezo ndicho chofunikira kwambiri chathu, chifukwa chake tili ndi akasinja ovomerezeka bwino pamakina athu amikanda, okhala ndi ma geji okakamiza ndi ma valve oteteza chitetezo kuti tipewe kupanikizika kwambiri.Izi zimatsimikizira chinthu chotetezeka komanso chodalirika chogwiritsidwa ntchito ndi matayala osiyanasiyana kuphatikizapo magalimoto, malonda, ulimi ndi matayala a ATV.Kuti zinthu zikhale zosavuta, taphatikizanso choyezera kuthamanga kwa 50mm kuti tiyeze molondola kuthamanga kwa tayala kuti kukwera bwino komanso kukwera kwamitengo.