PBR Steel Standard 577 - 428 Gearbox output pinionRef : PBR00959A / 1077761006

PBR Standard Steel Sprocket 577 - 428 (17 Teeth)

Designed by PBR from experience gained in competition, this steel sprocket reference 577 17 18NC is intended for 428 chain transmissions. Its standard design in high-quality steel offers a robust part to replace your original sprocket on trails, motocross, and compact roadsters.

• Material: 18NCD5 steel alloy
• Number of teeth: 17
• Chain pitch: 428
• Type / version: sprocket 577 - standard version

The PBR sprocket is aimed at riders looking for a reliable transmission part manufactured according to demanding industrial processes. The alloy used minimizes wear due to abrasion and corrosion for increased longevity in varied conditions, whether on track or road.

Installation and tips: check the wear of your chain and sprocket before installation, properly realign the engine shaft, and adhere to the torque specifications recommended by your manufacturer. Regular maintenance of the chain will extend the lifespan of the sprocket.

Manufacturer reference: 577 17 18NC

Compatibility (examples): YAMAHA YZ 85 LW BIG WHEELS 19/16 (2026), KAWASAKI Z 125 (2024), MZ 125 SM (2008).