



PBR Standard Steel Sprocket 2223 - 428 (manufacturer part number: 2289 13 18NC) — a rear transmission sprocket designed for demanding riders. Born from PBR's experience in competition, this sprocket meets the requirements of teams to provide a robust and reliable part intended for roadsters.
This sprocket is aimed at owners of APRILIA RS4 125 (2015–2017) and any motorcycle that accepts a 2223 sprocket with a 428 pitch. An essential wear part of the final transmission, it is mounted as a standard replacement to restore precise gearing and longevity suitable for sustained road use. Be sure to check the chain slack and the condition of the rear sprocket during replacement to ensure smooth drive performance.