PBR Steel Standard 2141 - 520 Gearbox output pinionRef : PBR00690A / 1077585002

PBR Standard Steel Sprocket 2141 - 520: a replacement sprocket designed for motocross transmissions where reliability is paramount. Manufactured by PBR, this sprocket is intended for riders and mechanics looking for a robust part, machined according to demanding industrial processes. Manufacturer reference: 2141 14 18NC.

• Material: high-quality 18NCD5 steel alloy
• Number of teeth: 14 teeth (sprocket)
• Chain pitch: 520
• Type / version: sprocket 2141, standard version
• Excellent resistance to corrosion and abrasion, strict machining and quality control
• Finish designed to minimize friction on the chain

This sprocket is intended for motocross environments where driving and track sessions impose repeated stresses on the transmission. It replaces the original 2141 sprocket in 520 pitch for standard mounting. Compatible with many motocross models, including the KAWASAKI KX 250 (2024) and KX 450 / KX 450 X (2023).

To keep in your toolbox: reduce the risk of breakage by replacing the worn sprocket with this traceable steel part designed to last. Always check the mounting and alignment of the chain before returning to service.