[Chain Specifications]Pitch: 1/2″; Roller Width: 1/4″; Roller Diameter: 5/16″; Sprocket Thickness: 0.227″. [Wide Application]Links can be removed to fit virtually any application by chain breaker, like 50cc 70cc 90cc 110cc 125cc ATVs and dirt bikes, Go Kart, Mini Bike, Scooter, Pit Bike, Quad. [Packing included]1 * Roller chain + 1 * Chain breaker+1 *Thimble(Breaker is good for 420-530.) [Chain Breaker]With portable chain breaker, help you replace and disassemble at any time, you can cut the chain to required length and reconnect. [Premium Quality]High Carbon Steel transmission chain, acid, alkali, cold and heat resistance, long service life. Not easy to rust, strong oxidation resistance. With strong abrasion resistance, durable tensile strength and high adhesion, Lubricating oil improves abrasion resistance. Firm chain connection, not easy to break. Easy to repair and maintenance. 420 Standard Roller Chain 132 Link: The sealed chain features excellent strength w