Dirt Bike Parts
Modern dirt bikes take serious abuse, so the parts on your machine need to match the way you ride. Whether you hit motocross tracks, single-track, or rough enduro terrain, the right dirt bike parts make a huge difference in power, handling, and durability. Riders choose high quality aftermarket components because they outperform stock parts and hold up when the pressure is on. Our selection is built for anyone who wants stronger performance and reliability on every jump, corner, and trail.
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Out of stock
Polisport - 8556300002 - Fender - Front - Restyle - White - CR 125R/250R
POLISPORT
$41.99Polisport - 14033753 - Fender - Front - Restyle - White - CR 125R/250RFeaturesInjection-molded, quality plastic components with a perfect OEM fitExact replica of stock OEM plastic componentsInexpensive alternative to OEM replacement partsStock color...$41.99 -
Polisport - 8579400002 - Fender - Rear - White - KTM - SX '13-'17
POLISPORT
$38.99Polisport - 14032233 - Fender - Rear - White - KTM - SX '13-'17FeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color match with less fadeGlossy and flexibleImpact and abrasion...$38.99 -
Polisport - 8596100002 - Fender - Rear - White - Kawasaki - KX '19-'22
POLISPORT
$38.99Polisport - 14032863 - Fender - Rear - White - Kawasaki - KX '19-'22FeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color match with less fadeGlossy and flexibleImpact and abrasion...$38.99 -
Polisport - 8463500002 - Fork Protectors - Upper - White
POLISPORT
$27.99Polisport - 04120429 - Fork Protectors - Upper - WhiteFeaturesComplete protection of the upper fork tubesEasy and quick installationKeep the fork upper tubes looking like newWork with different sized diameter forks (from 50 to 60 mm)Easy to remove and...$27.99 -
Polisport - 8466400003 - Frame Guards - Gray - CRF 250/450 R | 250RX
POLISPORT
$31.99Polisport - 05052198 - Frame Guards - Gray - CRF 250/450 R | 250RXFeaturesGreater grip with textured finish similar to OEMAbrasion and impact resistantSlim protection do it won't interfere with rider's bootsDurable and resistantKeeps the frame looking...$31.99 -
Polisport - 8472000003 - Fortress Skid Plate - White
POLISPORT
$122.99Polisport - 05061466 - Fortress Skid Plate - WhiteFeaturesExtended side protectionFull coverage of the engine and frame railsIncludes air intakes to cool the engineSlim fit prevents mud, dirt or rocks to build up between the protector and the frameHighly...$122.99 -
Polisport - 8454300004 - Airbox Cover - Orange/Black
POLISPORT
$89.99Polisport - 05203465 - Airbox Cover - Orange/BlackFeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color matchGlossy and flexibleLess prone to scratching or markingDirect bolt-onEasy...$89.99 -
Polisport - 8421700002 - Airbox Cover - '18 CRF Restyle - White - CR125/250R
POLISPORT
$45.99Polisport - 05203517 - Airbox Cover - '18 CRF Restyle - White - CR125/250RFeaturesInjection molded quality for perfect OEM fitInexpensive alternative to OEM replacement partsExact replica of stock OEM plastic components but strongerPre-drilled for...$45.99 -
Polisport - 8418300002 - Radiator Cover - White - KX 450F
POLISPORT
$71.99Polisport - 05202118 - Radiator Cover - White - KX 450FFeaturesGlossy and flexibleImpact and abrasion resistantLess prone to scratching or markingSpecsProduct NameRadiator CoverPositionRightRiding...$71.99 -
Polisport - 8453200002 - Airbox Cover - White/Black
POLISPORT
$27.99Polisport - 05202140 - Airbox Cover - White/BlackFeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color matchGlossy and flexibleLess prone to scratching or markingDirect bolt-onEasy...$27.99 -
Out of stock
Polisport - 8421100002 - Radiator Cover - White/Black - RMZ 450
POLISPORT
$58.99Polisport - 05202446 - Radiator Cover - White/Black - RMZ 450FeaturesInjection-molded, quality plastic components with a perfect OEM fitExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color...$58.99 -
Polisport - 8471700003 - Fortress Skid Plate - White - KTM | Husqvarna
POLISPORT
$97.99Polisport - 05061447 - Fortress Skid Plate - White - KTM | HusqvarnaFeaturesExtended side protectionFull coverage of the engine and frame railsIncludes air intakes to cool the engineSlim fit prevents mud, dirt or rocks to build up between the protector...$97.99 -
Out of stock
Polisport - 8426000001 - Radiator Cover - White - YZ 125/250
POLISPORT
$58.99Polisport - 05202172 - Radiator Cover - White - YZ 125/250FeaturesInjection-molded, quality plastic components with a perfect OEM fitExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color...$58.99 -
Polisport - 8471600003 - Fortress Skid Plate - White - EXC 250/300
POLISPORT
$97.99Polisport - 05061444 - Fortress Skid Plate - White - EXC 250/300FeaturesExtended side protectionFull coverage of the engine and frame railsIncludes air intakes to cool the engineSlim fit prevents mud, dirt or rocks to build up between the protector and...$97.99 -
Polisport - 8423400002 - Radiator Cover - White - KX 450F
POLISPORT
$71.99Polisport - 05202665 - Radiator Cover - White - KX 450FFeaturesGlossy and flexibleImpact and abrasion resistantLess prone to scratching or markingSpecsColor/FinishWhitePositionRightUnitsPairPositionLeftRiding StyleOff-RoadModelReplica PlasticsProduct...$71.99 -
Polisport - 8411300012 - Radiator Cover - Brushed Aluminum - CRF 450R
POLISPORT
$149.99Polisport - 05203617 - Radiator Cover - Brushed Aluminum - CRF 450RFeaturesInjection-molded, quality plastic components with a perfect OEM fitGlossy and flexibleImpact and abrasion resistantLess prone to scratching or...$149.99 -
Polisport - 8403000001 - Airbox Cover - White - KTM
POLISPORT
$55.99Polisport - 05203457 - Airbox Cover - White - KTMFeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color matchGlossy and flexibleLess prone to scratching or markingDirect bolt-onEasy...$55.99 -
Polisport - 8604900006 - Side Panels - Fluorescent Orange - KTM
POLISPORT
$58.99Polisport - 05202688 - Side Panels - Fluorescent Orange - KTMFeaturesInjection-molded, quality plastic components with a perfect OEM fitExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color...$58.99 -
Polisport - 8422100005 - Radoator Cover - Fluorescent Yellow/Black - KTM
POLISPORT
$71.99Polisport - 05202671 - Radoator Cover - Fluorescent Yellow/Black - KTMFeaturesInjection-molded, quality plastic components with a perfect OEM fitExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement...$71.99 -
Polisport - 8666800005 - Headlight Mask - Fluorescent Orange
POLISPORT
$38.99Polisport - 05202908 - Headlight Mask - Fluorescent Orange Features Exact replica of stock OEM plastic components but stronger Inexpensive alternative to OEM replacement parts Stock color match with less fade Glossy and flexible Impact and...$38.99 -
Polisport - 8421600003 - Radiator Cover - Restyle - Black - CR 125R/250R
POLISPORT
$67.99Polisport - 05202890 - Radiator Cover - Restyle - Black - CR 125R/250RFeaturesInjection-molded, quality plastic components with a perfect OEM fitGlossy and flexibleImpact and abrasion resistantLess prone to scratching or...$67.99 -
Polisport - 8417800008 - Radiator Cover - Fluorescent Orange/Black - KTM
POLISPORT
$71.99Polisport - 05202660 - Radiator Cover - Fluorescent Orange/Black - KTMFeaturesInjection-molded, quality plastic components with a perfect OEM fitExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement...$71.99 -
Polisport - 8605200003 - Side Panels - White - RMZ 250
POLISPORT
$58.99Polisport - 05203693 - Side Panels - White - RMZ 250FeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color match with less fadeGlossy and flexibleImpact and abrasion resistantLess...$58.99 -
Polisport - 8420300003 - Side Panels - Gray -'18 Restyle - CR 125R
POLISPORT
$67.99Polisport - 05203696 - Side Panels - Gray -'18 Restyle - CR 125RFeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color match with less fadeGlossy and flexibleImpact and abrasion...$67.99 -
Polisport - 8421600004 - Radiator Cover - Restyle - Gray - CR 125R/250R
POLISPORT
$67.99Polisport - 05203658 - Radiator Cover - Restyle - Gray - CR 125R/250RFeaturesInjection-molded, quality plastic components with a perfect OEM fitGlossy and flexibleImpact and abrasion resistantLess prone to scratching or markingSpecsProduct NameRadiator...$67.99 -
Polisport - 8421600002 - Radiator Cover - Restyle - White - CR 125R/250R
POLISPORT
$67.99Polisport - 05203657 - Radiator Cover - Restyle - White - CR 125R/250RFeaturesInjection-molded, quality plastic components with a perfect OEM fitGlossy and flexibleImpact and abrasion resistantLess prone to scratching or...$67.99 -
Polisport - 8403000002 - Airbox Cover - Black - KTM
POLISPORT
$55.99Polisport - 05203458 - Airbox Cover - Black - KTMFeaturesExact replica of stock OEM plastic components but strongerInexpensive alternative to OEM replacement partsStock color matchGlossy and flexibleLess prone to scratching or markingDirect bolt-onEasy...$55.99 -
Polisport - 8421700004 - Airbox Cover - '18 CRF Restyle - Gray - CR125/250R
POLISPORT
$45.99Polisport - 05203518 - Airbox Cover - '18 CRF Restyle - Gray - CR125/250RFeaturesInjection molded quality for perfect OEM fitInexpensive alternative to OEM replacement partsExact replica of stock OEM plastic components but strongerPre-drilled for perfect...$45.99 -
Out of stock
Kimpex - 294834 - Needle Bearing
Kimpex
$9.82Kimpex - NB1413 - Needle BearingFeaturesAll the raw material comes from Japan directlyHigh-purity Chromium Molybdenum alloy steel (JIS SCM415) with Carbon Nitriding heat-treatment processThe hardness specification is at HV500~HV600; it always can meet...$9.82 -
Out of stock
Kg Powersports - KGSP-405 - Clutch Drive Plate - Steel
KG Powersports
$6.95Kg Powersports - KGSP405 - Clutch Drive Plate - SteelFeaturesSteel and aluminum Clutch Plates are designed to be long-lasting and meet strict OEM specificationsSpecsRiding StyleStreetProduct NameDrive PlateTypeClutchRiding StyleAdventure Touring /...$6.95 -
Out of stock
Kg Powersports - KGSP-304 - Clutch Drive Plate - Steel
KG Powersports
$6.95Kg Powersports - KGSP304 - Clutch Drive Plate - SteelFeaturesSteel and aluminum Clutch Plates are designed to be long-lasting and meet strict OEM specificationsSpecsRiding StyleOff-RoadUnitsEachDrive Plate MaterialSteelRiding StyleStreetProduct NameDrive...$6.95 -
Out of stock
K&S Technologies - 19-1007 - Brake Caliper Seal Kit
K&S TECHNOLOGIES
$11.95K&S Technologies - 17020167 - Brake Caliper Seal KitFeaturesEach kit includes the caliper piston dust seal(s) and hydraulic pressure seal(s) to rebuild one caliperEach kit packed in a poly bag with an information header cardFront dual caliper...$11.95 -
K&S Technologies - 25-7010A - Replacement Turn Signal Lens - Amber
K&S TECHNOLOGIES
$4.95K&S Technologies - 257010A - Replacement Turn Signal Lens - AmberFeaturesSpecsProduct NameLensTypeTurn SignalShapeRectangularRiding StyleStreetUnitsEachLens ColorAmber$4.95 -
Jt Sprockets - JTR706.48 - Rear Sprocket - 48 Tooth - Aprilia/BMW
JT Sprockets
$31.95Jt Sprockets - 12100647 - Rear Sprocket - 48 Tooth - Aprilia/BMWFeaturesJT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable valueEvery sprocket meets or exceeds the highest possible...$31.95 -
Hot Rods - CBK0159 - Crankshaft Kit - Stroker Crankshaft Replacement - Honda
Hot Rods
$679.95Hot Rods - 09210381 - Crankshaft Kit - Stroker Crankshaft Replacement - HondaFeaturesFactory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performanceReady for installationCrankshaft is completely rebuildable...$679.95 -
Out of stock
Jt Sprockets - JTF824.12 - Countershaft Sprocket - 12 Tooth
JT Sprockets
$16.95Jt Sprockets - 12120671 - Countershaft Sprocket - 12 ToothFeaturesJT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable valueEvery sprocket meets or exceeds the highest possible quality...$16.95 -
Kg Powersports - KGSP-410 - Clutch Drive Plate - Steel
KG Powersports
$6.95Kg Powersports - KGSP410 - Clutch Drive Plate - SteelFeaturesSteel and aluminum Clutch Plates are designed to be long-lasting and meet strict OEM specificationsSpecsTypeClutchUnitsEachRiding StyleOff-RoadDrive Plate MaterialSteelProduct NameDrive...$6.95 -
Kg Powersports - KGSP-507 - Clutch Drive Plate - Steel
KG Powersports
$6.95Kg Powersports - KGSP507 - Clutch Drive Plate - SteelFeaturesSteel and aluminum Clutch Plates are designed to be long-lasting and meet strict OEM specificationsSpecsProduct NameDrive PlateUnitsEachRiding StyleAdventure Touring / Dual-SportRiding...$6.95 -
Kg Powersports - KGSP-705 - Clutch Drive Plate
KG Powersports
$8.95Kg Powersports - 11310831 - Clutch Drive PlateFeaturesSteel and aluminum Clutch Plates are designed to be long-lasting and meet strict OEM specificationsSpecsUnitsEachTypeClutchProduct NameDrive PlateDrive Plate MaterialSteelRiding...$8.95 -
Out of stock
Kg Powersports - KGSP-701 - Clutch Drive Plate
KG Powersports
$8.95Kg Powersports - 11310827 - Clutch Drive PlateFeaturesSteel and aluminum Clutch Plates are designed to be long-lasting and meet strict OEM specificationsSpecsProduct NameDrive PlateTypeClutchUnitsEachRiding StyleOff-RoadDrive Plate...$8.95
High Performance Dirt Bike and Motocross Components
Every piece of your dirt bike contributes to how confidently you ride. Upgrading to better engine parts, clutch components, and fuel system pieces gives you stronger acceleration and cleaner throttle response when the track gets rough. Suspension upgrades like fork springs, seals, shock components, and linkage parts help your bike stay predictable through whoops, ruts, and landings. Controls matter just as much, so riders improve their cockpit with new handlebars, grips, levers, and foot pegs that boost comfort and precision at high speed.
Performance braking and drive components can completely transform how a dirt bike handles. Rotors, pads, chains, sprockets, wheel bearings, and hardware all play a role in keeping traction consistent and stopping power reliable. Even routine maintenance items like air filters, spark plugs, fluids, cables, and gaskets impact how well your bike performs under load. Quality parts help you ride longer, harder, and with more confidence, whether you are chasing lap times or carving your favorite trails.
Our goal is simple. Give riders access to dirt bike parts that hold up to real riding conditions and deliver true performance gains. When you twist the throttle, charge a jump, or slam into a corner, you should trust that every component on your bike can take the hit and keep going. Explore our full lineup of dirt bike and motocross parts and build a machine that is ready for whatever you throw at it.