



PBR Standard Steel Sprocket 423 - 520 (Manufacturer Part No. 423 12 18NC)
Designed for the Cross environment, this PBR sprocket features a robust design intended for 520 chain drive. Tailored for off-road motorcycles, it has a 12-tooth profile suitable for configurations requiring a clear gear transition between the gearbox and rear wheel.
The manufacturing process follows strict guidelines to achieve a uniform part that is resistant to corrosion and abrasion, which limits wear on the teeth and helps reduce friction in the transmission. Ideal for riders looking for a reliable replacement part for the engine sprocket, it fits on compatible 520 chain/sprocket assemblies.
Notable compatibilities: KAWASAKI KX 125 (KX125M 2008, KX125L 2002, KX125K 1998). For optimal maintenance of your rolling train, check the chain slack and the condition of the teeth during installation.