Tātaitai Whakataurite Rahi Tāira

Ka whakamahi ngā rahi tāira i Aotearoa i te āhua ao-whānui kotahi me te nuinga o te ao. Ko tētahi waehere rahi tāira āhua pērā i te 205/55R16 91V ka wehewehe penei: ko te 205 ko te whānui wāhanga tāira i roto i ngā milimita; ko te 55 ko te ōwehenga āhua (ko te teitei taha i raro hei ōrau o te whānui wāhanga, na ko te 55% o te 205 mm = 112.75 mm); ko te R e tohu ana i te hanganga radial (ko te momo noa rawa atu); ko te 16 ko te diameter poka i roto i ngā inihi; ko te 91 ko te tohu kawe (ko ia nama e hāngai ana ki tētahi nui kawe māori, ko te 91 e tohu ana i te nui kawe tino o te 615 kg ia tāira); ko te V ko te tohu tere (e tohu ana i te tere tino ka taea e te tāira, ko te V e tohu ana i te 240 km/h). Ko te tohu kawe me te tohu tere ngā momo haumarutanga matua. Ka tangaia ēnei waehere ki roto i te taha tāira. Ka taea te tāpiri i ētahi tohu ētahi atu, tae atu ki te waehere rā DOT e tohu ana i te wiki me te tau hanganga. Puna: NZTA (nzta.govt.nz/vehicles/vehicle-safety); Tyre and Rim Association of NZ.

I Aotearoa, me tutuki, neke atu rānei o tāira whakakapi i te tohu kawe me te tohu tere i tautuhi mō to waka. Ko te hiahia iti ko te tutuki i ngā tohutohu hanganga taputapu taketake (OEM) i tohua i runga i te pānui tāira o to waka (ka kitea i te pakitara tātau kairaira, i roto i te pukapuka arahi rānei). Me ōrite te tohu kawe, nui ake rānei, ki te tohutohu taketake hei whakarite ka taea e te tāira te kawe haumaru i te taumaha o te waka. Me ōrite te tohu tere, teitei ake rānei, ki te tere hoahoa tino o te waka. Hei tauira, mēnā ko te pānui o to waka e tohu ana ko te tohu kawe 88 me te tohu tere H (210 km/h), me kaua e uru i ngā tāira tohu kawe iti ake, tohu tere raro iho i te H rānei. Ko te uru i ngā tāira koretake ka ahei te pakaru tāira, te ngaro whakahaere, me te hinga tirotirohanga WoF. Ka taea e to kaihoko tāira te whakau i ngā tohutohu tika mō to waka. Puna: NZTA (nzta.govt.nz/vehicles/vehicle-safety); Tyre and Rim Association of NZ.

I Aotearoa, ka taea te uru i tētahi rahi tāira rereke ki to waka i roto i ētahi tepe. Ko tētahi tikanga noa ko te "plus-sizing", ka urua he tāira whānui ake me te taha papa ake ki runga i tētahi poka nui ake, a ka pupuritia te diameter tāira katoa ōrite hei pupuri i te tika omita. Hei tauira, ko te whakaatu i te 195/65R15 ki te 205/55R16 ka pupuri i tētahi porowhita hurihanga ōrite. Ko te ture matua ko ngā tāira me kaua e pa ki ngā tātau wira, wāhanga whakanoho, tinana rānei i tētahi wāhi, tae atu ki te nekehanga katoa me te haerenga whakanoho. Ka hiahia te NZTA ko te uru tāira kaua e hanga i tētahi tupono haumarutanga. Ka hinga tētahi waka i tōna tirotirohanga WoF mēnā ka urua hē ngā tāira. Ka tino tūtohutia te tono ki tētahi tohunga tāira tohu i mua i te uru i ngā rahi ehara i te paerewa. Ko ngā horo ka tuku tāira ki tua o te raina tinana ka taea anō te hanga i ngā tāke rite ana. Puna: NZTA (nzta.govt.nz/vehicles/vehicle-safety); Tyre and Rim Association of NZ.

I Aotearoa, ko te hohonu ara tāira iti rawa atu i raro i te ture ko te 1.5 mm puta noa i ngā toru-koata o waenganui o te whānui ara huri noa i te porowhita katoa o te tāira. Ka tautuhi tēnei paerewa e te Tikanga Waka Whenua: Nga Tāira 2001. Ko te nuinga o ngā tāira hou ka timata ki te tata ki te 7 ki te 8 mm o te hohonu ara. Ahakoa ko te iti rawa atu i raro i te ture ko te 1.5 mm, ka tūtohutia e te nuinga o ngā tohunga tāira me haumarutanga ki te whakakapi tāira i te 2 ki te 3 mm, na ka tino heke te hua aukati me te whakahaere ua i raro i te 3 mm. Ko ngā tāira whai tohu mau ara (TWI) i tangaia ki roto i te turanga o ngā tahatū ara matua i te tata ki te 1.6 mm hohonu; ka rite te mata ara ki ēnei tohu, kei uta, kei raro rānei te tāira i te iti rawa atu i raro i te ture. Ko tētahi tāira paerewa ara ngotongoto ka hinga i tētahi tirotirohanga WoF. Ko te taraiwa i runga i ngā tāira pakeke, tata pakeke rānei ka tino hiki i te tupono maukuuku me te ngaro whakahaere i roto i ngā āhuatanga ua. Puna: NZTA (nzta.govt.nz/vehicles/vehicle-safety); Tyre and Rim Association of NZ.