BOX Concentric Cable Kits are among the most advance BMX brake cables on the market, starting with the custom Concentric housing, which includes aramid fiber-wrapped Aluminum/Steel linear wires for the best combination of strength and low weight.The inner Nano Cable wires are treated with a PTFE coating that reduces friction and boosts braking performance. Our anodized aluminum Kollars™ ferrules further reduce cable drag.Each cable kit includes 79 inches of Concentric Linear housing, a black PTFE-coated Nano Cable, two color-matched and two alloy Kollars™ ferrules and one color-matched and one black alloy cable end caps.Key Features:Available in chrome, 14K Gold, Red, Blue and Black with color-matched alloy Kollars ferrules and end caps,Weight: 70 grams/2.46 ounces (Colors) 100 grams/3.52 ounces (14K Gold & Chrome),Rear Cable Length (mm) 2100,Housing Length 2000mm,Cables PTFE Coated.