Helu kumu. : B450x86Zx55
Hoʻolauna:
1. ʻO ke ala Rubber kahi lipine i hoʻopaʻa ʻia me ka lāʻau metala a i ʻole ka fiber.
2. Loaʻa iā ia nā hiʻohiʻona o ke kaomi haʻahaʻa haʻahaʻa, ka ikaika traction nui, ka haʻalulu liʻiliʻi, ka leo haʻahaʻa, maikaʻipassability i loko o ka pulu, ʻaʻohe pōʻino i ka ʻili o ke alanui, ka wikiwiki o ka hoʻokele, ka nui liʻiliʻi, etc.
3. Hiki iā ia ke hoʻololi i nā kaila a me nā ala kila e hoʻohana ana i nā mīkini mahiʻai, nā mīkini hana a me ka ʻāpana hele o nā kaʻa lawe.