Premium Motorcycle Chain - Elegant, Strong, Detailed and Magnificent, Ultimate Shape with Flexibility and Strength. ThreeD New Performance: Plating: ThreeD chain is impressively and elegantly shining, appealing as premium chain that cannot be ignored. Inner Plate with Lightening Hole: EK Chains creates a lightening hole in each inner plate without weakening the plate according to the computer analysis. This plate enables the chain to be light, remove mud from the hole, and dissipate heat effectively. Reduced Friction: The exclusive QX2 and SX2 ring contributes to reduction of friction (compared with EK Chains' existing products). Chromium Carbide Pin: Chromium Carbide pin surface coating increases hardness and reduces chain wear. SX2 Ring: