ESJOT aluminum sprockets have been specially developed for the tough conditions of motocross, enduro and road use. Compared to conventional steel sprockets, an ESJOT sprocket can save over 60% in weight. The use of high quality aluminum (7075 T6), which is also used in aviation, As well as the extremely low manufacturing tolerances ensure an extraordinarily long life. All ESJOT aluminum sprockets are colored anodized. - Over 60% lighter than a conventional steel sprocket. - Manufactured on precision CNC machines - Plan and concentricity accuracies of less than 0.1 mm - Made of high-quality and high-strength 7075 T6 aluminum - special surface treatment - 100% Made in Germany - OEM quality