Iibheringi zevili lemoto zemveli zenziwe ngeeseti ezimbini eziteyiweyoiibheringi zerolaokanye iibheringi zebhola.Ukunyuka, ukufakwa kwe-oyile, ukutywinwa kunye nokulungelelaniswa kwemvume yeebheringi zonke ziqhutyelwa kumgca wokuvelisa imoto.
Iibheringi zesondo zemoto zemveli zenziwe ngeeseti ezimbini zeebheringi ezifakwe tapered okanye iibheringi zebhola.Ukunyuka, ukufakwa kwe-oyile, ukutywinwa kunye nokulungelelaniswa kwemvume yeebheringi zonke ziqhutyelwa kumgca wokuvelisa imoto.