Ko ta matou 63mm 4layer Kowiri tira otaota miraka te kounga totoka, niho koi tino tapatapahia nga mea katoa, hoahoa ahua hou kia kore ai e paheke te wa huri, kia kaha ake te aukume, te ahua matotoru kia noho haumaru koe.I tua atu i te ahua ataahua, ko te paninga whakakikorua he kore piri, he maamaa ake te horoi.