He mea tiaki haumaru, he mea whakapaipai, he mea whakapai ake hoki te parepare i ngā āhuatanga aerodynamic o te waka, ā, mai i te tirohanga haumaru, ka taea e te waka te mahi hei ārai i ngā aituā tukinga tere-iti, hei tiaki i te tinana o mua me muri o te waka, ā, i roto i ngā aituā me ngā kaihaerere ka taea hoki te mahi hei tiaki i ngā kaihaerere.
Tangohia te parepare, ka kitea kua pakaru te taha maui o te parepare ki roto i tētahi awaawa, arā, me whakakapi te wāhi i pakaru ai te parepare ki tētahi parepare hou. Ko te mahi a te parepare he whakaiti i te kino o te pūtu, te tatau hiku, te rama hiku me ētahi atu wāhanga o te rīpene chrome i raro i te parepare mēnā he aituā. I muri i te tangohanga hei whakakapinga, ka whakamahia te pū whakarewa kirihou hei whakamahana me te whakarewa i ngā kapiti i te tuara, ā, ka whakamahanahia te tokotoko whakarewa kirihou i a ia e neke ana i ngā kapiti. Ka whakamahia te kirikiri hiko hei whakakanapa i te hononga whakarewa teitei me te whakangawari i te mata peita kua pakaru ki te wira huri hiko. I muri i te wā tuatahi, ka maroke katoa te putty ki te hau, ā, ka whakamahia te onepu o ngā matotoru rerekē hei whakakanapa me te whakamaroke, kātahi ka tāutahia te rīpene whakakikorua chrome i runga i te parepare.
