ProX Motorcycle Performance Parts

ProX
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2217.D)
    0
    # mpn4851208357
    Piston Kit (01.2217.D) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $89.96
  • ProX® - Piston Kit
    ProX®Piston Kit (01.1110.B)
    0
    # mpn4851208355
    Piston Kit (01.1110.B) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $88.60
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6396.A)
    0
    # mpn4851208267
    Piston Kit (01.6396.A) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $171.85
  • ProX® - Piston Kit
    ProX®Piston Kit (01.1348.C)
    0
    # mpn4711692653
    Piston Kit (01.1348.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $179.12
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2314.150)
    0
    # mpn4693259836
    Piston Kit (01.2314.150) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $114.78
  • ProX® - Piston Kit
    ProX®Piston Kit (01.1348.B)
    0
    # mpn4686323696
    Piston Kit (01.1348.B) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $151.26
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2417.C)
    0
    # mpn4686323483
    Piston Kit (01.2417.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $179.12
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2114.C)
    0
    # mpn4655507708
    Piston Kit (01.2114.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $74.81
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2314.050)
    0
    # mpn4655507553
    Piston Kit (01.2314.050) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $114.78
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2601.075)
    0
    # mpn4655507450
    Piston Kit (01.2601.075) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $112.27
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2417.B)
    0
    # mpn4645422658
    Piston Kit (01.2417.B) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $165.19
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2448.C)
    0
    # mpn4645422588
    Piston Kit by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kit are a...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $191.21
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6388.A)
    0
    # mpn4636874577
    Piston Kit (01.6388.A) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $182.34
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6387.B)
    0
    # mpn4636874442
    Piston Kit (01.6387.B) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $159.29
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6387.A)
    0
    # mpn4636874441
    Piston Kit (01.6387.A) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $188.63
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6367.B)
    0
    # mpn4636874439
    Piston Kit (01.6367.B) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $206.76
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6367.A)
    0
    # mpn4636874438
    Piston Kit (01.6367.A) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $206.76
  • ProX® - Piston Kit
    ProX®Piston Kit (01.1417.C)
    0
    # mpn4636874437
    Piston Kit (01.1417.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $161.47
  • ProX® - Piston Kit
    ProX®Piston Kit (01.1417.A)
    0
    # mpn4636874435
    Piston Kit (01.1417.A) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $161.47
  • ProX® - Piston Kit
    ProX®Piston Kit (01.4221.C)
    0
    # mpn4526313907
    Piston Kit (01.4221.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $95.58
  • ProX® - Piston Kit
    ProX®Piston Kit (01.3341.C)
    0
    # mpn4526313891
    Piston Kit by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kit are a...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $139.67
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2427.B)
    0
    # mpn4526313882
    Piston Kit (01.2427.B) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $156.31
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2427.A)
    0
    # mpn4526313881
    Piston Kit (01.2427.A) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $156.31
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2225.D)
    0
    # mpn4526313759
    Piston Kit (01.2225.D) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $95.58
  • ProX® - Piston Kit
    ProX®Piston Kit (01.2224.C)
    0
    # mpn4526313755
    Piston Kit (01.2224.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $95.58
  • ProX® - Piston Kit
    ProX®Piston Kit (01.1339.C)
    0
    # mpn4526313717
    Piston Kit (01.1339.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $187.65
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6228.D)
    0
    # mpn4526313547
    Piston Kit (01.6228.D) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $134.34
  • ProX® - Piston Kit
    ProX®Piston Kit (01.6105.D)
    0
    # mpn4526313539
    Piston Kit (01.6105.D) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $84.18
  • ProX® - Piston Kit
    ProX®Piston Kit (01.4286.050)
    0
    # mpn4526313495
    Piston Kit (01.4286.050) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $131.57
  • ProX® - Piston Kit
    ProX®Piston Kit (01.4218.C)
    0
    # mpn4526313489
    Piston Kit (01.4218.C) by ProX®. Pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston...
    Excellent economic alternative when you are looking for an O.E.M. quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high-quality standards
    $106.53




For years, ProX Racing Parts has been providing dedicated motorcycle enthusiasts with genuine racing products for their motorcycle applications. Love of the ride and passion for motorsports paired with an ongoing thirst for innovation is the driving force behind the brand. It has poured into an extensive selection of industry-leading quality parts and accessories that look and perform as they should. ProX offers the highest quality, competitively priced parts, and accessories for any amateur rider or pro racer. From air and oil filters, bearings and brake discs to clutch parts, connecting rods, crankshafts, and suspension, ProX has everything you need to win that race.

With a rich heritage of experience and engineering excellence, ProX Racing Parts has built a solid reputation as the premier brand in the replacement engine industry and is constantly expanding its product lines to include suspension, transmission, brake parts, and more. The brand offers die-hard racing junkies and big performance fans the parts they need to attack any track with confidence at reasonable prices. ProX high-end products are made of superior-grade materials to meet or exceed the OEM in quality, performance, and durability to let you enjoy billions of miles of worry-free driving. Built to be tough as nails and dependable, they can handle the high RPMs of high-output applications.

ProX Racing offers a diverse variety of premium-grade racing parts and accessories for a wide range of applications including dirt bike and MX motorcycles and mopeds/scooters. Whether you’re a veteran motocross racing junkie, enduro rider, or any other moto enthusiast, ProX has the right parts to outfit your bike for an adventure. ProX Racing’s diverse product range includes air filters, brake parts, cables, clutch pressure plates, and springs, bearings, pistons, connecting rods, crankshafts, valves, engine seals, front fork seals, cylinder sleeves, swing arm rebuild parts, sprockets, and many more. They’re manufactured with quality and precision to strict OEM specifications to provide unprecedented performance, dependability, and value.

From piston kits and connecting rods to crankshaft assemblies and valves, ProX has got you covered with genuine racing engine parts made of first-class quality materials to optimize your bike’s performance and power to meet your specific needs. The brand has the finest quality gaskets and seals offering superior sealing and long-lasting service. Precision machined pistons made of the same low-expansion, low-friction piston alloy that’s used by most of the OEM manufacturers, which makes them a great replacement for your factory components. ProX also offers a wide variety of ball and roller bearing for just about every need. You’ll also find high-quality brake pads, discs, master cylinder, and caliper rebuild kits, which are a great alternative to OEM. With these parts, you can enjoy superior braking experience and a safe, worry-free ride. The brand also has a wide range of transmission parts including everything from sprockets and drive chains to countershaft seal kits and chain rollers to sprocket bolts. They offer trouble-free installation and reliable performance.

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