DHA pin treatment: Hard chromium-carbide layer formed on pin surface Far better wear resistance than other chains Up to 19% higher tensile strength Increased antioxidation performance Solid bushings, quad-rivet pins With quad-stake riveted pins and solid bushings, you get great performance, strength, and chain life Made for future champions, the 420NZ3 is the premium 420 sized Offroad racing chain This is also a great option for smaller bikes such as the Honda Grom DID PART NUMBER: 420NZ3X130RB INTERCHANGEABLE PART NUMBER: 1221-0021 OR 690-14130 420 CHAIN - SMALLER BIKES - MESSAGE SELLER IF UNSURE OF FITMENT. Please ensure fitment prior to purchase. If you have questions, please contact the seller. Not responsible for improper or ill fitment due to incorrect year, make & model given by buyer upon purchase.