



ESJOT Rear Sprocket 50-32003-40 — 520 / 40 Teeth
Designed and manufactured in Germany, this ESJOT rear sprocket made from QSTE460 steel features a black finish with a specific surface treatment. Machined using the Diamond Cut 2.0 process, it offers precise tooth profiles and concentricity and run-out tolerances of less than 0.1 mm — characteristics that meet high OEM requirements for secondary transmission.
Ideal for Quad, Trail/Adventure, Enduro, and Cross universes, this sprocket is suitable for transmissions subjected to sustained wear conditions. It fits on compatible 520 chains and kits and replaces OEM parts with controlled concentricity to limit transmission-related vibrations.
Compatibility Examples: