



Designed by PBR and drawing from competition experience, the PBR standard steel sprocket 600M - 420 is aimed at urban riders and roadster enthusiasts looking for a reliable and easy-to-install transmission part. Its design incorporates the requirements of teams to provide a robust solution for the rear chain.
Ideal for replacing an original sprocket on the small displacements mentioned, this PBR sprocket fits perfectly for daily use: urban commutes, city rides, and spirited riding on roadsters. Its construction in 18NCD5 steel ensures durability against the stresses of transmission and weather conditions.
Manufacturer reference: 600M 13 18NC
Main compatibilities (examples): RIEJU MRT 50 SM (2025), FANTIC XM 50 PERFORMANCE (2025), BETA RR 50 MOTARD (2025). Always check the number of teeth and chain pitch compatibility before installation.