Ili ndi chogwirira chapadera chosinthika chakumbuyo chomwe chimalola ogwiritsa ntchito kusankha mtundu wa mayendedwe omwe akugwirizana ndi zosowa zawo mwa kusintha malo ozungulira dzanja poyerekeza ndi mapewa. Mbali yapaderayi, kuphatikiza ndi mkono woponderezedwa mbali imodzi pa madigiri 20 pamwamba ndi patsogolo pa wogwiritsa ntchito ndi zogwirira ziwiri, imalola maphunziro athunthu oyenda popanda kukhudza.
Mpando ukhoza kusinthidwa utakhala kapena utaimirira, ndipo umathandizidwa ndi mabearing ndi ma cylinder apamwamba kwambiri kuti ukhale wokhazikika komanso wosagwedezeka kwambiri.
Manja opondereza mbali imodzi amalumikizana madigiri 20 mbali iliyonse pamwamba ndi kutsogolo kwa mapewa, zomwe zimapangitsa kuti munthu azitha kuyenda mozungulira popanda kukhudza.
Kumbuyo kwapadera komwe kumasinthika kumalola wogwiritsa ntchito kusintha malo a chogwirira chopingasa ndi mapewa.