Box built the Concentric kit around custom housing: aramid fibre wrapped aluminium and steel linear wires, for the best combination of strength and low weight. It is one of the most advanced BMX brake cable kits going.
The inner Nano wire is treated with a PTFE coating that reduces friction and boosts braking performance, and the anodised aluminium Kollars ferrules take out more cable drag again. Each kit includes 79 inches of Concentric linear housing, the black PTFE coated Nano cable, four ferrules and two end caps.
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