ENDURO BEARINGS Derailleur pulleys - zero ceramic - campagnolo - 11 speed - gold

Enhance your bike’s shifting performance and durability with these precision-machined black Delrin derailleur pulleys. Featuring Zero, black-oxide treated, ceramic-hybrid radial bearings, these pulleys are designed for optimal performance. The upper pulley uses CN (tight clearance) bearings for maximum shifting accuracy, while the lower pulley employs C4 (loose clearance) bearings to accommodate chain-line movement. Crafted from 500 AF Delrin, a material known for high tensile strength, rigidity, natural lubricity, and resistance to moisture, chemicals, and UV rays, these pulleys deliver exceptional durability and smooth operation. The Teflon®-infused Delrin reduces friction significantly compared to aluminum or titanium pulleys, ensuring less drag. Equipped with Enduro Zero ceramic-hybrid bearings featuring black-oxide treated 52100 high-carbon chromium alloy races and grade 5 silicon-nitride ceramic balls with 90% fill, these bearings provide increased lifespan and reduced wear. The black oxide/magnetite treatment on the races offers superior corrosion resistance for worry-free performance.