PBR Standard Steel 4370 - 428 SprocketKTM 50 50 EXC - 1996 - 2003Ref : PBR00117A / 1075295001

PBR Standard Steel Sprocket 4370 - 428 (Manufacturer Ref: 4370 55 F)

Born from PBR's competitive experience alongside major teams, this 55-tooth steel sprocket is designed for the motocross world. Made from high-quality 18NCD5 steel alloy, it offers high resistance to corrosion and abrasion while adhering to a strict manufacturing process.

• Type: standard, chain pitch: 428
• Number of teeth: 55
• Material: steel (18NCD5 alloy) — black finish
• Benefits: wear resistance, reduced friction due to controlled manufacturing

Designed for off-road use and demanding riding, this PBR sprocket easily integrates into a standard 428 chain/sprocket transmission. Its black finish ensures durability over time and a sleek look on motocross bikes.

Common compatibilities: KTM 50 EXC (2001, 2002, 2003) — please check compatibility with your model before installation.

Rider's Tip: check the condition of the sprocket and chain before replacement to ensure even wear and optimal lifespan of the sprocket.