ESJOT aluminum sprockets are specifically designed for the harsh conditions in motocross, enduro and street area. Compared to conventional steel sprockets, a sprocket ESJOT brings a weight saving of over 60%. The use of very high-quality aluminum (7075 T6), which is also used in the aerospace, and the extremely low manufacturing tolerances ensure a very long service life. All ESJOT aluminum sprockets are colored anodized. - About 60% lighter than a conventional steel sprocket. - manufactured on precision CNC machines - Plan and concentricity 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