Ko ngā whirihoranga kaiwharawhara mō ngā tūru hokohoko e ai ki te whakamahere āhuatanga, he wana i te whakaputa i ngā hiahia noa. Nga kanawa waenga matua ka tuhituhi kanawa rua rite ki te 270°, hei hanga i te poraka rawa (1.2mm) me te toto uha, ko te ara whakaruruhia e toru pūtētē nei i roto i ia kanawa. He kanawa whakangaro (kāore i te whakaaetanga) i hanga i te horopaki paraharaha (uwhi 25mm), ka mahi ki runga i te mota 12V (he takitahi 0.3m/s) me te tukanga ringa ki te korenga o te watea. He kanawa taha (kei te tūranga 4.2m) he whanake 1.5m, e whakatū mai ana i te mīhini cam-lock me te tahuhu huarere (he nui ake te wehewehe 20N/m). Mō ngā tūnga huarere, kei raro i ngā kanawa he poraka 100mm i te poliurene, me ngā paepae kanawa whakangaro (15W/m) hei whakatupu i te huka. Kua whakamatakiria ngā kanawa mo te mana moe 100,000 (ISO 11684), ko ngā whakauru kāore i te whakaaetanga: 1) he tāpu kawe tonu ki roto i ngā pane kanawa, 2) he mīhini whakamatau kanawa (kei te hononga ki te ECU o te waka), me 3) he mīhini kauwhau kanawa mō ngā rerekē hiko. Tuku tonu ki a tātou kaiwhakamārama ā-momo mō ngā tūtohu kuhu, ngā tūtohu kuhu, me ngā whakatakotoranga tūhonotia.