ProX Air and Fuel Delivery

ProX Racing Parts: OEM Quality for the Powersports Enthusiast

ProX Racing Parts has been a cornerstone of the powersports performance world since its founding in 1975. Headquartered near Amsterdam, The Netherlands, ProX serves domestic and international dealers and distributors from its Nieuw Vennep facility. Over the past five decades, the brand has earned a reputation built on one uncompromising principle: deliver parts that meet or exceed OEM quality at a price that makes sense for racers and everyday enthusiasts alike.

A Catalog Built for Every Corner of the Engine

ProX Racing Parts is primarily specialized in high-quality internal engine components such as pistons, connecting rods, crankshafts, and valves. But the brand's ambitions extend well beyond those core categories. ProX Racing Parts continuously expands its range, investing in other technical components for various powersports applications — and including the latest additions, ProX stocks well over 8,000 part numbers divided across more than 60 different product groups.

At the heart of that catalog are engine connecting rods — one of ProX's most celebrated product lines. ProX connecting rod kits are engineered for maximum strength, precision fitment, and long-lasting durability, making them an ideal choice for motocross, off-road motorcycles, ATVs, and personal watercraft. Manufactured from high-quality forged steel, these connecting rods offer exceptional tensile strength, fatigue resistance, and reduced weight. ProX oiling slots are precisely located to maximize lower rod oiling and extend bearing life.

The brand's commitment to internal engine excellence carries through to its full range of engine hardware. All parts are manufactured to the highest quality standards at state-of-the-art manufacturing facilities around the world — facilities that include reputable businesses manufacturing OEM parts for leading motorcycle brands worldwide. This OEM-factory connection is a key part of what sets ProX apart: the same production expertise that supplies top motorcycle manufacturers flows directly into ProX's aftermarket line.

The drivetrain side of the catalog is equally impressive, with a comprehensive selection of clutch components for dirt bikes and ATVs. ProX clutch components — including baskets, inner hubs, pressure plates, spring kits, and friction and steel plates — are made by leading Japanese OEM manufacturers from the finest materials, and their high quality at competitive prices has made them a go-to choice for many riders and race teams. ProX stocks clutch parts for almost every dirt bike and ATV application.

Who Rides on ProX?

ProX proudly partners with leading teams and riders across motocross, road racing, and off-road disciplines. ProX supplies a wide variety of performance replacement components designed and manufactured to meet or exceed OEM specifications and standards for a range of powersports vehicles, including dirt bikes, ATVs, personal watercraft, snowmobiles, sport bikes, and scooters. Whether you are rebuilding a competition engine from the bottom up or simply replacing worn clutch plates before the next race weekend, ProX offers the depth of catalog and the quality assurance to get the job done right.

The ProX Difference

With decades of experience and long-established manufacturing relationships, ProX Racing Parts is always able to select the best manufacturer to meet or exceed high-level requirements regarding technical specifications. ProX parts are manufactured to OEM quality standards in state-of-the-art facilities that also produce for leading motorcycle brands. That pedigree — combined with a global distribution network spanning more than 70 countries — means ProX is a brand that serious powersports riders trust when it matters most.