Motocross/Dirt Bike Valves & Valvetrain Parts

Motorcycle Valves & Valve Train Parts
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1356-2)
    0
    # mpn4526313375
    Steel Valve by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $18.71
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1323-2)
    0
    # mpn4526313372
    Steel Valve (28.1323-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $18.71
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1323-1)
    0
    # mpn4526313371
    Steel Valve (28.1323-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $25.01
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1227-2)
    0
    # mpn4526313370
    Steel Valve (28.1227-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $17.64
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1227-1)
    0
    # mpn4526313369
    Steel Valve (28.1227-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $23.73
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1226-2)
    0
    # mpn4526313368
    Steel Valve by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $18.71
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1070-2)
    0
    # mpn4526313366
    Steel Valve (28.1070-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $14.37
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1070-1)
    0
    # mpn4526313365
    Steel Valve (28.1070-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $22.85
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1407-1)
    0
    # mpn4526313070
    Steel Valve (28.1407-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $32.99
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1402-1)
    0
    # mpn4526313067
    Steel Valve (28.1402-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $30.66
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1340-1)
    0
    # mpn4526313065
    Steel Valve (28.1340-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $32.99
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1338-1)
    0
    # mpn4526313064
    Steel Valve (28.1338-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $30.66
  • ProX® - Steel Valve
    ProX®Steel Valve (28.1334-1)
    0
    # mpn4526312738
    Steel Valve (28.1334-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $30.66
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS4341-2)
    0
    # mpn4967335256
    Steel Valve and Spring Kit (28.SIS4341-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS1409-2)
    0
    # mpn4871472845
    Steel Valve and Spring Kit by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $119.58
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS2440-2)
    0
    # mpn4851055735
    Steel Valve and Spring Kit (28.SIS2440-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $119.58
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS6329-2)
    0
    # mpn4851055731
    Steel Valve and Spring Kit (28.SIS6329-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SES2414-1)
    0
    # mpn4851055729
    Steel Valve and Spring Kit (28.SES2414-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS2424-2)
    0
    # mpn4851055703
    Steel Valve and Spring Kit (28.SIS2424-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $170.49
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SES6329-1)
    0
    # mpn4851055701
    Steel Valve and Spring Kit (28.SES6329-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS2444-2)
    0
    # mpn4526313872
    Steel Valve and Spring Kit (28.SIS2444-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $132.86
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS2414-2)
    0
    # mpn4526313869
    Steel Valve and Spring Kit (28.SIS2414-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SES2444-1)
    0
    # mpn4526313868
    Steel Valve and Spring Kit (28.SES2444-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $132.86
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SES2424-1)
    0
    # mpn4526313866
    Steel Valve and Spring Kit (28.SES2424-1) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $119.58
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS6353-2)
    0
    # mpn4526313704
    Steel Valve and Spring Kit by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS6351-2)
    0
    # mpn4526313703
    Steel Valve and Spring Kit (28.SIS6351-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS4406-2)
    0
    # mpn4526313698
    Steel Valve and Spring Kit (28.SIS4406-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $132.88
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS4336-2)
    0
    # mpn4526313695
    Steel Valve and Spring Kit (28.SIS4336-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS4335-2)
    0
    # mpn4526313694
    Steel Valve and Spring Kit (28.SIS4335-2) by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $122.98
  • ProX® - Steel Valve and Spring Kit
    ProX®Steel Valve and Spring Kit (28.SIS3408-2)
    0
    # mpn4526313693
    Steel Valve and Spring Kit by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $119.58




Motocross is one of the most challenging modern sports, and it provides an exhilarating experience to many two-wheeler enthusiasts of all ages worldwide. Motocross and dirt bikes are immediately recognizable for an aggressive stance, high ground clearance, narrow and rugged tires, and some other cues. These bikes feature great off-road ability, with motors producing high torque for improved performance on demanding motocross tracks or off-road routes. However, the top shape of the engine, including valves and valvetrain parts, is mandatory to ensure good performance and safety.

The intake and exhaust valves control the amount of the fuel-air mixture entering the engine and the flow of the burnt gases leaving it after combustion. The shape of the valves resembles a mushroom with a head and long stem. The stem runs in a valve guide to ensure the precision and effectiveness of operation. As the valves are subject to stresses and huge temperatures caused by combustion, they are prone to wear and even can be ruined under some conditions. You can replace them or upgrade the system with aftermarket valves which feature improved characteristics. In our online store, we have a large selection of premium motocross/dirt bike valves and valvetrain parts designed by top-ranked companies and offered at an affordable price.

Featured Brands

Related Categories

MOTORCYCLEiD FacebookMOTORCYCLEiD XMOTORCYCLEiD YouTube ChannelMOTORCYCLEiD PinterestMOTORCYCLEiD Instagram
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by MOTORCYCLEiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.
CUSTOMER SERVICE
INFORMATION
CONTACTS