Motocross/Dirt Bike Valves & Valvetrain Parts
- Outlaw Racing®Valve Spring (OR5371)Valve Spring (OR5371) by Outlaw Racing®. 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$10.14
- Outlaw Racing®Valve Spring (OR5318)Valve Spring (OR5318) by Outlaw Racing®. 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$10.14
- ProX®CrN Coating Titanium Valve (28.2423-2)CrN Coating Titanium Valve (28.2423-2) 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$72.63
- ProX®Exhaust Steel Valve (28.6520-1)Exhaust Steel Valve (28.6520-1) 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$39.94
- ProX®Exhaust Steel Valve (28.1495-1)Exhaust Steel Valve (28.1495-1) 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$33.09
- ProX®Exhaust Steel Valve and Spring Kit (28.SES6327-1)Exhaust Steel Valve and Spring Kit (28.SES6327-1) 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....Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$122.98
- ProX®Exhaust Steel Valve and Spring Kit (28.SES3407-1)Exhaust Steel Valve and Spring Kit (28.SES3407-1) 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....Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$119.58
- ProX®Exhaust Valve (28.2414-1)Exhaust 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$69.77
- ProX®Forged Steel Valve (28.2418-3)Forged Steel Valve (28.2418-3) 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$17.64
- ProX®Intake OEM Steel Valve (28.2418-2)Intake OEM Steel Valve (28.2418-2) 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$16.55
- ProX®Intake Steel Valve (28.6520-2)Intake Steel Valve (28.6520-2) 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$25.76
- ProX®Intake Steel Valve (28.1495-2)Intake Steel Valve (28.1495-2) 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$24.23
- ProX®Intake Steel Valve and Spring Kit (28.SIS6327-2)Intake Steel Valve and Spring Kit (28.SIS6327-2) 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...Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$122.98
- ProX®Intake Steel Valve and Spring Kit (28.SIS3407-2)Intake Steel Valve and Spring Kit (28.SIS3407-2) 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...Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$119.58
- ProX®Intake Titanium Valve (28.6425-2)Intake Titanium 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...Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$75.13
- ProX®OEM Titanium Valve (28.2401-2)OEM Titanium Valve (28.2401-2) 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$58.92
- ProX®One Piece Forged Titanium Valve (28.2423-3)One Piece Forged Titanium Valve (28.2423-3) 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$75.13
- ProX®Steel Exhaust Valve and Spring Kit (28.SES2402-1)Steel Exhaust Valve and Spring Kit (28.SES2402-1) 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....Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$122.98
- ProX®Steel Intake Valve and Spring Kit (28.SIS2402-2)Steel Intake Valve and Spring Kit (28.SIS2402-2) 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...Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$182.66
- ProX®Steel Valve (28.1409-1)Steel Valve (28.1409-1) 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 (28.1040-2)Steel Valve (28.1040-2) 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$12.70
- ProX®Steel Valve (28.1040-1)Steel Valve (28.1040-1) 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$21.23
- ProX®Steel Valve (28.3402-2)Steel Valve (28.3402-2) 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$23.39
- ProX®Steel Valve (28.3402-1)Steel Valve (28.3402-1) 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$28.26
- ProX®Steel Valve (28.2200-2)Steel Valve (28.2200-2) 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$14.04
- ProX®Steel Valve (28.2200-1)Steel Valve (28.2200-1) 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 (28.1654-2)Steel Valve (28.1654-2) 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$33.46
- ProX®Steel Valve (28.1654-1)Steel Valve (28.1654-1) 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$40.37
- ProX®Steel Valve (28.1381-2)Steel Valve (28.1381-2) 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 (28.1381-1)Steel Valve (28.1381-1) 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
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.
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