



PBR Standard Steel Sprocket 556 - 520 (Manufacturer's reference: 556 15 18NC)
This PBR output sprocket is aimed at riders who are concerned about reliable and durable transmission. Made from quality steel (18NCD5 alloy), it features 15 teeth and is designed for a 520 pitch chain, standard sprocket version 556. Ideal for roadsters and original replacements, it retains the standard tooth profile for easy fitting on compatible drivetrains.
The design is based on PBR's experience in competition and strict manufacturing controls to ensure a uniform part suitable for road use. The alloy used offers good abrasion resistance and corrosion resistance, making it a strong choice for a transmission that endures daily use and more dynamic outings. This sprocket replaces the original 15-tooth sprocket on compatible models and facilitates the restoration of the final transmission.
Notable compatibilities: particularly compatible with GILERA CX 125 (1991, 1992, 1993) — please check the reference and chain pitch of your motorcycle before installation.