Dirt Bike Drivetrain
Dirt Bike Drivetrain Parts at JJ Motorsports
Enhance your dirt bike’s power transfer with premium drivetrain parts from JJ Motorsports. Find heavy-duty chains, front and rear sprockets, and clutch components designed to withstand intense riding demands. Combine these with other motocross gear and parts to maximize acceleration and ride efficiency on the track or trail.
Shop trusted brands like JT Chains for sealed chains and Renthal for ultralight sprockets. Explore related categories such as Dirt Bike Engine Parts for power upgrades or Dirt Bike Exhaust for complete tuning.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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PARTS UNLIMITED Rear Honda Sprocket - 520 - 47 Tooth 41201-ML3-81
PARTS UNLIMITED
$37.69A worn or damaged rear sprocket compromises your entire drivetrain's efficiency and acceleration response. This OEM-spec replacement ensures your Honda returns to factory performance standards with precise tooth engagement and reliable power delivery...K223903- SKU:
- K223903
- Availability:
- Ships Same Business Day
- Weight:
- 2.52 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TYPE:
- DRIVE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NATURAL
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$37.69 -
PARTS UNLIMITED 420 - Drive Chain - 130 Links T420130
PARTS UNLIMITED
$19.95A 420 chain demands reliable construction to handle the demands of your drivetrain, whether you're running a go-kart, minibike, or small-displacement engine. This precut, clip-link chain eliminates guesswork on length and simplifies installation—no...T420130- SKU:
- T420130
- Availability:
- Ships Same Business Day
- Weight:
- 2.13 LBS
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 80 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 17.5 KN
- RIDING STYLE:
- UTV
- TENSILE STRENGTH IMPERIAL:
- 3950 LB
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 130
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- SEAL TYPE:
- NON-SEAL
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 80 CC
- RIDING STYLE:
- STREET
$19.95 -
PARTS UNLIMITED Rear Yamaha Sprocket - 49 Tooth 5HP-25449-20-49
PARTS UNLIMITED
$25.45A worn or damaged rear sprocket directly impacts your Yamaha's acceleration, top-end performance, and overall drivetrain efficiency. This PARTS UNLIMITED sprocket restores OEM-spec engagement and responsiveness, ensuring consistent power delivery whether...12100031- SKU:
- 12100031
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MOUNTING POSITION:
- REAR
$25.45 -
PARTS UNLIMITED 428H - Drive Chain - 132 Links T428H132
PARTS UNLIMITED
$27.95A reliable 428H drive chain is fundamental to maintaining consistent power delivery and minimizing drivetrain slack in applications ranging from go-karts to small-displacement motorcycles and ATVs. This precut, ready-to-install chain eliminates the...T428H132- SKU:
- T428H132
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 200 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 4050 LB
- TENSILE STRENGTH METRIC:
- 18 KN
- CHAIN SIZE:
- 428
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 132
- UNITS:
- EACH
- CHAIN TYPE:
- 428 H
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 200 CC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$27.95Qty in Cart: 0Quantity:Price:$27.95Subtotal: -
PARTS UNLIMITED 428H - Drive Chain - 124 Links T428H124
PARTS UNLIMITED
$25.95A reliable 428 roller chain is essential for any drivetrain requiring consistent power delivery and minimal slack. The PARTS UNLIMITED 428H delivers the durability and precision fit you need, whether you're building a go-kart, mini bike, or other...T428H124- SKU:
- T428H124
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- CHAIN SIZE:
- 428
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 200 CC
- PRODUCT NAME:
- DRIVE CHAIN
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 124
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 4050 LB
- RIDING STYLE:
- ATV
- TENSILE STRENGTH METRIC:
- 18 KN
- CHAIN TYPE:
- 428 H
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 200 CC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$25.95 -
MOOSE RACING Chain Roller - 43 mm x 28 mm - Black 79-5006
MOOSE RACING
$21.95Chain drag is one of the most overlooked sources of power loss in high-performance drivetrains. The MOOSE RACING Chain Roller reduces friction where your chain meets the swingarm, recovering lost horsepower and extending drivetrain longevity. With sealed...12310034- SKU:
- 12310034
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- LOWER
- MATERIAL:
- POLYURETHANE
- MOUNTING POSITION:
- UPPER
- PRODUCT NAME:
- CHAIN ROLLER
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- WIDTH METRIC:
- 28 MM
- INSIDE DIAMETER METRIC:
- 8 MM
- OUTSIDE DIAMETER METRIC:
- 43 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- SEALED
$21.95 -
MOOSE RACING Chain Roller - 34 mm x 24 mm - Black 79-5008
MOOSE RACING
$20.95Chain drag friction silently bleeds horsepower and accelerates wear on your entire drivetrain. The MOOSE RACING Chain Roller replaces that energy loss with a precision-engineered polyurethane contact point that maintains consistent tension while...12310036- SKU:
- 12310036
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- OUTSIDE DIAMETER METRIC:
- 34 MM
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- POLYURETHANE
- MOUNTING POSITION:
- UPPER
- PRODUCT NAME:
- CHAIN ROLLER
- INSIDE DIAMETER METRIC:
- 8 MM
- MOUNTING POSITION:
- LOWER
- TYPE:
- SEALED
- WIDTH METRIC:
- 24 MM
$20.95 -
MOOSE RACING Chain Roller - 25 mm x 20 mm - Black 79-5011
MOOSE RACING
$12.95Excessive chain friction is a silent performance killer—it drains horsepower, accelerates wear, and forces your engine to work harder than necessary. The MOOSE RACING Chain Roller eliminates drag at the source by reducing contact friction across your...12310039- SKU:
- 12310039
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- INSIDE DIAMETER METRIC:
- 12 MM
- MOUNTING POSITION:
- LOWER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- OUTSIDE DIAMETER METRIC:
- 25 MM
- TYPE:
- SEALED
- WIDTH METRIC:
- 20 MM
- MATERIAL:
- DELRIN® PLASTIC
- PRODUCT NAME:
- CHAIN ROLLER
- UNITS:
- EACH
$12.95 -
MOOSE RACING Chain Roller - 28 mm x 24 mm - Black 79-5012
MOOSE RACING
$10.95A worn or inadequate chain roller accelerates drivetrain wear and saps horsepower through unnecessary friction—exactly what you can't afford in competitive racing or high-performance builds. The MOOSE RACING Chain Roller replaces that efficiency leak...12310040- SKU:
- 12310040
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- DELRIN® PLASTIC
- UNITS:
- EACH
- MOUNTING POSITION:
- LOWER
- OUTSIDE DIAMETER METRIC:
- 28 MM
- TYPE:
- SEALED
- WIDTH METRIC:
- 24 MM
- INSIDE DIAMETER METRIC:
- 14 MM
- MOUNTING POSITION:
- UPPER
- PRODUCT NAME:
- CHAIN ROLLER
- RIDING STYLE:
- OFF-ROAD
$10.95 -
MOOSE RACING Chain Roller - 24 mm x 26 mm - Black 79-5013
MOOSE RACING
$10.95Chain drag is a silent performance killer on any high-revving drivetrain—it's stealing horsepower and accelerating wear on your sprockets. The MOOSE RACING Chain Roller eliminates this friction point with a precision-engineered polyurethane roller that...12310041- SKU:
- 12310041
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- INSIDE DIAMETER METRIC:
- 8 MM
- MOUNTING POSITION:
- UPPER
- OUTSIDE DIAMETER METRIC:
- 24 MM
- PRODUCT NAME:
- CHAIN ROLLER
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- DELRIN® PLASTIC
- TYPE:
- SEALED
- UNITS:
- EACH
- WIDTH METRIC:
- 25,5 MM
- COLOR/FINISH:
- BLACK
$10.95 -
MOOSE RACING Chain Roller - 38mm - Black 79-5014
MOOSE RACING
$32.95A worn or low-quality chain roller bleeds horsepower through increased drivetrain friction and accelerates wear on your sprockets and chain. The MOOSE RACING 38mm Chain Roller eliminates this inefficiency with a precision-engineered polyurethane design...12310220- SKU:
- 12310220
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- TYPE:
- SEALED
- WIDTH METRIC:
- 24 MM
- MATERIAL:
- POLYURETHANE
- MOUNTING POSITION:
- UPPER
- PRODUCT NAME:
- CHAIN ROLLER
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 8 MM
- MOUNTING POSITION:
- LOWER
- OUTSIDE DIAMETER METRIC:
- 38 MM
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$32.95 -
MOOSE RACING Chain Roller - Honda - Black 79-5015
MOOSE RACING
$22.95Chain slap and friction rob horsepower and accelerate wear on your sprockets and frame. The MOOSE RACING Chain Roller eliminates that parasitic drag with a precision-engineered polyurethane roller that maintains consistent contact without binding...12310399- SKU:
- 12310399
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- LOWER
- MATERIAL:
- POLYURETHANE
- PRODUCT NAME:
- CHAIN ROLLER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- WIDTH METRIC:
- 23 MM
- INSIDE DIAMETER METRIC:
- 8 MM
- MOUNTING POSITION:
- UPPER
- OUTSIDE DIAMETER METRIC:
- 34 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- SEALED
$22.95 -
MOOSE RACING Clutch Master Cylinder Rebuild Kit 18-4011
MOOSE RACING
$58.95A leaking clutch master cylinder compromises both safety and performance—fluid loss means unpredictable pedal feel and potential brake system failure. This MOOSE RACING rebuild kit gives you a cost-effective alternative to replacing the entire assembly,...11321304- SKU:
- 11321304
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- CYLINDER
$58.95 -
MOOSE RACING Clutch Master Cylinder Rebuild Kit 18-4012
MOOSE RACING
$48.95A leaking clutch master cylinder compromises both safety and control, forcing fluid past worn seals and degrading pedal response. The MOOSE RACING Rebuild Kit 18-4012 supplies all necessary components to restore your master cylinder to factory...11321305- SKU:
- 11321305
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- CYLINDER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- REBUILD KIT
$48.95 -
MOOSE RACING Clutch Master Cylinder Rebuild Kit 18-4028
MOOSE RACING
$24.95A worn or leaking clutch master cylinder compromises both safety and drivability, forcing sluggish pedal response and unpredictable engagement. This MOOSE RACING rebuild kit restores OEM-level hydraulic performance with precision-engineered seals and...11321587- SKU:
- 11321587
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- CYLINDER
- UNITS:
- KIT
$24.95 -
MOOSE RACING Clutch Kit M90-232
MOOSE RACING
$212.95A worn or slipping clutch compromises power delivery and leaves performance on the table—whether you're track-focused or pushing your daily driver. The MOOSE RACING M90-232 Clutch Kit consolidates all essential friction components into one engineered...11312328- SKU:
- 11312328
- Availability:
- Ships Same Business Day
- Weight:
- 2.22 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES GASKET
- FEATURES:
- INCLUDES SPRINGS
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$212.95 -
MOOSE RACING Clutch Springs MHDS113-5
MOOSE RACING
$16.95A worn or weak clutch spring setup compromises your lever feel and throttle response—two critical factors when you're pushing hard on track or executing precise downshifts. MOOSE RACING's precision-wound clutch springs deliver a noticeably sharper, more...11310098- SKU:
- 11310098
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
- UNITS:
- SET
- PRODUCT NAME:
- SPRING SET
$16.95Qty in Cart: 0Quantity:Price:$16.95Subtotal: -
MOOSE RACING Steel Clutch Plates M80-7105-7
MOOSE RACING
$45.95If you're running aluminum clutch plates, you're accepting a compromise between performance and longevity. MOOSE Racing Steel Clutch Plates (M80-7105-7) eliminate that trade-off by delivering superior durability without sacrificing the responsive...11310104- SKU:
- 11310104
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- UNITS:
- SET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- DRIVE PLATE SET (STEEL PLATE SET)
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$45.95 -
MOOSE RACING Clutch Springs MHDS119-5
MOOSE RACING
$16.95A worn or weak clutch spring can rob you of precise lever feedback and consistent engagement, especially under the demands of track work or spirited riding. MOOSE Racing's MHDS119-5 clutch springs deliver the tactile response and holding power you need...11310218- SKU:
- 11310218
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
- UNITS:
- SET
- PRODUCT NAME:
- SPRING SET
$16.95 -
MOOSE RACING Kickstarter 80-0101-00-60
MOOSE RACING
$184.79A kickstarter that fails mid-season costs you track time and credibility. The MOOSE RACING 80-0101-00-60 delivers OEM-spec reliability with aircraft-grade durability, ensuring your starter motor mounts securely through countless heat cycles and...11120043- SKU:
- 11120043
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COLOR/FINISH:
- BLACK ANODIZED
- PRODUCT NAME:
- KICKSTARTER
- MATERIAL:
- 6061 ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$184.79
