｜鋁合金固定豆Pin｜
鋁合金固定豆是DOUBRO獨家設計中最重要的一環，專利角度讓鋼絲的拉力及強度更高。兩端以橫向方向（即與車輪軸平行）旋入鋼絲固定豆上，擺脫傳統在鋁圈上開孔固定鋼絲，保證輪胎的完整與氣密性！
The aluminum alloy pin is a crucial element in DOUBRO's exclusive design, with a patented technology that enhances the tensile strength and durability of the steel wire. The steel wire is threaded into both ends in a transverse direction (parallel to the wheel axis), breaking away from the traditional method of drilling holes in the aluminum rim to secure the steel wire, ensuring airtightness of the tire!
