Ma waho aʻe o ka nani, aia nā hana ʻē aʻe - e haʻi iā ʻoe i kahi "hula huila" maoli.
'Ōlelo pinepine mākou ʻo ke apo hao poepoe (a i ʻole ke apo alumini) i hoʻopiha ʻia me nā kaila, ʻaʻole ʻo ia ka hub, ʻo kona inoa ʻepekema ʻo "wheel", no ka mea maʻamau i hana ʻia me ke kila, no laila ua kapa ʻia ʻo "ke apo kila".ʻO ka "hub" maoli kona hoalauna, e pili ana i ka hoʻokomo ʻana i kahi kākoʻo ma ke axle (a i ʻole hoʻokele knuckle), ʻo ia ka mea maʻamau ma o loko a me waho ʻelua cone bearings (hiki ke hoʻohana ʻia i kahi pālua ʻelua) i kau ʻia ma ke axle. , a hoʻopaʻa ʻia me kahi kī kī.Hoʻopili ʻia ia me ka huila ma o ka huila huila, a hui pū me ka huila e hana i ka hui huila, i hoʻohana ʻia e kākoʻo i ke kaʻa a hoʻokele i ke kaʻa.ʻO nā huila a mākou e ʻike nei e wili wikiwiki ana, ʻo ia ke ʻano o ka ʻōwili ʻana o nā huila.Hiki ke ʻōlelo ʻia i loko o nā ʻāpana ʻekolu o ka hub, ka rim a me ka huila, he ʻāpana hana ka hub, ʻoiai ʻo ka rim a me ka huila he mau ʻāpana passive.Pono e hoʻomaopopo ʻia ua hoʻokomo pū ʻia ka disc brake (a i ʻole ka pahu pahu) ma luna o ka hub, a ʻo ka ikaika o ke kaʻa ke amo maoli ʻia e ka hub.