KMC has specially developed a brand new chain for BMX cycling extreme sports, the KMC Half Link “Kool Knight Chain”. The unique design can reduce serious destruction on the chain generated during extreme stunts, freestyle and glide, to ensure that the chain structure provides more protection, minimizing damage to effectively avoid breakage. In addition to its superb functions of high tensile strength, durable chain structure and stylish design, the “Kool Knight Chain” also fits all types of cogs with different teeth numbers. The chain provides riders with the best transmission efficiency and safety.