Application Powerful??This chain breaker is fit for 420 428 520 525 528 530 roller chains. Links can be removed to fit virtually any application, like 50cc 70cc 90cc 110cc 125cc ATVs and dirt bikes, Go Kart, Mini Bike, Scooter, Pit Bike, Quad, etc. Material: This roller chain breaker is constructed with high quality molybdenum steel which has a higher strength than normal metal material ??Long service life. Design: The surface of the chain breaker is special treated and is corrosion resistant. The chain breaker has a ergonomics design and will make your work much easy.Let you easily remove chains of various applications.