



PBR Standard Steel Sprocket 525 - 520 · 15 Teeth · Manufacturer Reference 525 15 18NC
Designed by PBR from experience gained in competition, this steel sprocket is aimed at demanding riders looking for a part tailored for final drive transmission. Machined from 18NCD5 steel alloy, it features an appropriate treatment to provide high resistance to corrosion and abrasion while maintaining a consistent tooth profile.
The design and finish aim to minimize friction in contact with the chain, allowing for smoother rotation and predictable behavior on the rear wheel. Suitable for roadsters and maintenance or replacement operations, this sprocket easily fits transmissions compliant with the 520/525 pitch.
Common compatibilities: