Dirt Bike Parts
10000 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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Moose Offroad - Pipe Guard - FMF Factory/Fatty
Moose Offroad
$186.95Moose Offroad - 18611351 - Pipe Guard - FMF Factory/FattyFeaturesCarbon fiber, anti-ballistic composite material, fiberglass, and high temp resins yield an exceptional guardThe lightweight composite...$186.95 -
Moose Offroad - Carbon Muffler - Bag Guard - Multiple Gas Gas/Husqvarna/KTM Models
Moose Offroad
$186.95Moose Offroad - 18611608 - Carbon Muffler - Bag GuardFeaturesMount the carbon fiber heat shield/guard on your new adventure dirt bike for some much-needed lightweight protectionThis carbon fiber...$186.95 -
Pro Circuit - 1119225K - Ti-2 Silencer - Fits 1992-1996 Honda CR250R
Pro Circuit
$446.95Pro Circuit - 18211987 - Ti-2 SilencerFeaturesOffers the "factory" look and appearance while reducing weightOptimum performance gainsCNC-machined aluminum mounting bracketFor closed-course racing...$446.95 -
Acerbis - 2071440001 - Silencer Plug - Black
Acerbis
$10.95Acerbis - 18611610 - Silencer Plug - BlackFeaturesSpecsRiding StyleAdventure Touring / Dual-Sport<$10.95 -
Fmf - 040691 - Heat Shield - Fits Yamaha 2019-2026 YZ250F, 2019-2024 YZ450FX, 2018-2024 YZ450F
FMF
$89.99Fmf - 18611607 - Heat ShieldFeaturesSpecsUnitsEachProduct Name$89.99 -
Pro Circuit - 1131865 - R-304 Silencer - Fits 2018-2025 Yamaha YZ65
Pro Circuit
$206.29Pro Circuit - 18211985 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Fmf - 042338 - MegaBomb Header - Stainless Steel - '16-'18 KX450F - Fits 2016-2017 Kawasaki KX450
FMF
$374.99Fmf - 18220445 - MegaBomb Header - Stainless Steel - '16-'18 KX450FFeaturesImproved bottom to mid-range powerLess susceptible to damage than a longer headerEffectively reduces sound output by as much...$374.99 -
Fmf - 041604 - Factory 4.1 RCT Exhaust - Aluminum - Fits 2021-2026 Honda CRF450R/RX
FMF
$1,049.99Fmf - 18201993 - Factory 4.1 RCT Exhaust - AluminumFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the...$1,049.99 -
Moose Offroad - 4-Stroke Pipe Guard - Fits 2021-2023 Gas Gas EX 350F
Moose Offroad
$119.95Moose Offroad - 18611584 - 4-Stroke Pipe GuardFeaturesCustom molded to fit perfectly every timeSpecsMaterial$119.95 -
Pro Circuit - 0721665 - Works Pipe - Fits 2016-2022 Kawasaki KX65
Pro Circuit
$322.95Pro Circuit - 18201756 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$322.95 -
Fmf - 041586 - PowerCore 4 HEX Muffler - Fits 2019-2023 Honda CRF450X
FMF
$449.99Fmf - 18113799 - PowerCore 4 HEX MufflerFeaturesDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInternal shape of core uses Hi-Flo...$449.99 -
Moose Offroad - 4-Stroke Muffler Packing -11"X16"X1"
Moose Offroad
$20.95Moose Offroad - 18602211 - 4-Stroke Muffler Packing -11"X16"X1"FeaturesMade in the U.S.A.SpecsStyle4-St$20.95 -
Fmf - 042397 - Factory 4.1 RCT Exhaust - Aluminum - Fits 2021-2023 Kawasaki KX250
FMF
$974.99Fmf - 18201985 - Factory 4.1 RCT Exhaust - AluminumFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the...$974.99 -
Fmf - 042398 - Factory 4.1 RCT Exhaust - Titanium
FMF
$1,224.99Fmf - 18201984 - Factory 4.1 RCT Exhaust - TitaniumFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the...$1,224.99 -
Leovince - 9779 - Exhaust Inlet Adapter - 38.10mm/1-1/2"
LeoVince
$58.95Leovince - 18120465 - Exhaust Inlet Adapter - 38.10mm/1-1/2"FeaturesCompatible with LV-10, GP Corsa, GP Corsa EVO, and GP Corsa MatteSpecs$58.95 -
Fmf - 025213 - Powercore 2.1 Shorty Muffler
FMF
$239.99Fmf - 18211816 - Powercore 2.1 Shorty MufflerFeaturesWith their lightweight titanium or extruded aluminum oval canisters mated to a perforated core, these silencers are above the competitionSpecs$239.99 -
Fmf - 042384 - MegaBomb Header
FMF
$374.99Fmf - 18220524 - MegaBomb HeaderFeaturesImproved bottom to mid-range powerProduce the low end of a longer header and the top end of a short headerLess susceptible to damage than a long headerRuns...$374.99 -
Fmf - 025280 - Gnarly™ Exhaust Pipe
FMF
$329.99Fmf - 18202015 - Gnarly™ Exhaust PipeFeaturesExcellent off-road pipe and good for tighter tracksBuilt with tough 18-gauge steelO-rings IncludedSpecs$329.99 -
Fmf - 024078 - Exhaust Factory Fatty Rev Pipe - Fits 2022-2026 Yamaha YZ125/X
FMF
$319.99Fmf - 18202014 - Exhaust Factory Fatty Rev PipeFeaturesDyno and track tested for every applicationO-rings includedSpecs$319.99 -
Fmf - 024071 - Turbinecore 2 Silencer - Fits 2003-2007 Honda CR85R
FMF
$229.99Fmf - 18211875 - Turbinecore 2 SilencerFeaturesStraight-through design of the spark arrestor canister and the Performance Flow stainless steel end cap ensure strength, durability and unrestricted...$229.99 -
Fmf - 041605 - Factory 4.1 RCT Exhaust - Titanium
FMF
$1,374.99Fmf - 18201994 - Factory 4.1 RCT Exhaust - TitaniumFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the...$1,374.99 -
Pro Circuit - 0312425FP - Ti-6 Pro Exhaust System
Pro Circuit
$1,555.95Pro Circuit - 18202007 - Ti-6 Pro Exhaust SystemFeaturesDesigned to increase performance and help professional racers pass AMA/FIM sound regulationsMachined aluminum muffler brackets for increased...$1,555.95 -
Moose Offroad - Replacement Spark Arrestor Screen Kit
Moose Offroad
$31.95Moose Offroad - 18611645 - Replacement Spark Arrestor Screen KitFeaturesEasy maintenance and removal with only two screwsUSFS approved spark arrestor end capMade in the U.S.A.Specs$31.95 -
Polisport - 8484100005 - Armadillo Extreme Silencer Guard - Grey
Polisport
$76.99Polisport - 18611543 - Armadillo Extreme Silencer Guard - GreyFeaturesStainless steel and silicone construction for an increased level of protection, impact absorption and to avoid vibration...$76.99 -
Fmf - 042390 - MegaBomb Header - Fits 2021-2024 Kawasaki KX250
FMF
$374.99Fmf - 18220521 - MegaBomb HeaderFeaturesImproved bottom to mid-range powerProduce the low end of a longer header and the top end of a short headerLess susceptible to damage than a long headerRuns...$374.99 -
Leovince - 14436X - X3 EVO Slip-On Muffler - Gas Gas/KTM/Husqvarna - Fits 2021-2023 Gas Gas EC 250F/350F, 2020-2023 Husqvarna FE 250/350/450/501
LeoVince
MSRP: $514.95$513.95Leovince - 18212085 - X3 EVO Slip-On Muffler - Gas Gas/KTM/Husqvarna Features Media-blasted for a perfect textured surface finish Lightweight carbon fiber end cap Welded mounting brackets with...MSRP: $514.95$513.95 -
Fmf - 044450 - MegaBomb Header
FMF
$524.99Fmf - 18220476 - MegaBomb HeaderFeaturesImproved bottom to mid-range powerProduce the low end of a longer header and the top end of a short headerLess susceptible to damage than a long headerRuns...$524.99 -
Pro Circuit - 0131845A - T-6 Muffler - Fits 2018-2019 Yamaha YZ450F
Pro Circuit
$799.95Pro Circuit - 18211841 - T-6 MufflerFeaturesConstructed of stainless steel throughout the mid-pipe and end-cap while the canister is constructed of aluminum for increased durabilityMachined aluminum...$799.95 -
Polisport - 8484100004 - Armadillo Extreme Silencer Guard - Red
Polisport
$76.99Polisport - 18611542 - Armadillo Extreme Silencer Guard - RedFeaturesStainless steel and silicone construction for an increased level of protection, impact absorption and to avoid vibration...$76.99 -
Fmf - 041613 - 4.1 RCT Exhaust System
FMF
$1,374.99Fmf - 18202003 - 4.1 RCT Exhaust SystemFeaturesIn addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving...$1,374.99 -
Pro Circuit - 0111945GX - T-6 Titanium Exhaust System
Pro Circuit
$1,275.95Pro Circuit - 18201910 - T-6 Titanium Exhaust System Features Stainless steel construction throughout headpipe with titanium canister Asymmetrical muffler configuration for increased packing...$1,275.95 -
Pro Circuit - 0152225G - T-6 Exhaust System - Stainless Steel
Pro Circuit
$1,102.95Pro Circuit - 18202019 - T-6 Exhaust System - Stainless SteelFeaturesSpecsFeatureswith removable Spark Arrestor<$1,102.95 -
Pro Circuit - 0112425G - T-6 Exhaust System
Pro Circuit
$1,169.95Pro Circuit - 18202004 - T-6 Exhaust SystemFeaturesSuperior strength mounting brackets for durabilityComes with a removable USFS approved spark arrestor making it easy to alternate between off-road...$1,169.95 -
Fmf - 024076 - Exhaust Fatty Pipe
FMF
$319.99Fmf - 18202012 - Exhaust Fatty PipeFeaturesCarbon steel with a nickel plated finish for maximum durabilityO-rings IncludedSpecs$319.99 -
Pro Circuit - 0122025G - T-6 Exhaust - Fits 2020 Kawasaki KX250
Pro Circuit
$1,089.95Pro Circuit - 18201928 - T-6 ExhaustFeaturesComes with a removable United States Forest Service (USFS) Approved Spark Arrestor making it easy to alternate between off-road and closed course...$1,089.95 -
Pro Circuit - PY05125-RV - Works Pipe
Pro Circuit
$352.95Pro Circuit - 18201983 - Works PipeFeaturesConstructed of high-quality carbon steel with hand welded and pounded seamsReinforced mounting brackets and stingerDesigned to be stronger on the...$352.95 -
Polisport - 8469200005 - Armadillo Pipe Guard - Grey
Polisport
$84.99Polisport - 18611387 - Armadillo Pipe Guard - GreyFeaturesResistant to high temperaturesQuick and easy to install, easy to remove and clean after ridingVariable width through the protection for a...$84.99 -
Polisport - 8469200003 - Armadillo Pipe Guard - Blue
Polisport
MSRP: $80.99$67.49Polisport - 18611385 - Armadillo Pipe Guard - BlueFeaturesResistant to high temperaturesQuick and easy to install, easy to remove and clean after ridingVariable width through the protection for a...MSRP: $80.99$67.49 -
Polisport - 8473200001 - Armadillo Metal Braces
Polisport
$7.99Polisport - 18611436 - Armadillo Metal BracesFeaturesSpecsUnitsEachMat$7.99 -
Fmf - 042374 - Factory 4.1 RCT Muffler - Aluminum
FMF
$599.99Fmf - 18211953 - Factory 4.1 RCT Muffler - AluminumFeaturesIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward...$599.99
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.