PBR Steel Standard Front Sprocket 523 - 520 Gearbox output pinionRef : PBR01289A / 1077734003

PBR Standard Steel Sprocket 523 - 520 (Manufacturer reference: 523 16 18NC) — a robust motorcycle sprocket designed for the primary transmission of roadsters, motocross bikes, and quads using a 520 pitch chain.

Drawing from PBR's competitive experience, this standard 16-tooth sprocket is aimed at riders looking for a reliable replacement part for the drive gear. Made of steel (18NCD5 alloy), it features a design suited to the stresses of the chain, the rear sprocket, and the output shaft sprocket.

• Brand: PBR
• Material: Steel (18NCD5 alloy)
• Number of teeth: 16 teeth
• Chain pitch: 520
• Type / version: 523 / Standard
• Usage: quad, motocross, roadster

The specified material and manufacturing process aim to limit corrosion and abrasion for optimized longevity of the teeth, while reducing friction between the chain and sprocket. Suitable as a replacement part for many models (e.g., KAWASAKI Z 500 SE 2025, SUZUKI GS 500 F 2007, KAWASAKI Z 500 2025) — however, please check compatibility with your gearbox and transmission system before installation.