1. Kushandisa zvinhu zvitsva - chigadzirwa ichi chinonyanya kugadziriswa nezvinhu zvitsva, chinoramba kushandisa zvinyorwa zvechipiri, uye zvinonyanya kuvimbiswa kushandiswa.
2 Smooth yemukati madziro - yakaderera friction coefficient, kushoma kukweshera pane mapaipi esimbi
3 Yakakora pombi - yakakora yekugadzira maitiro, hurefu hwehupenyu hwesevhisi uye yakavimbika mhando