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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Pro Circuit Clutch Springs Yamaha YZ250F 2019-2021 CSY19250-CS
PRO CIRCUIT
$88.99Stock clutch springs wear and soften over time, causing slipping, inconsistent engagement, and lost power delivery—especially critical in competitive riding where milliseconds matter. Pro Circuit's upgraded springs deliver 12-15% increased stiffness,...11313380- SKU:
- 11313380
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING SET
- UNITS:
- SET
$88.99 -
Pro Circuit Axle Blocks Honda CRF250R 2004-2008 Red HAB00
PRO CIRCUIT
$59.95Rear wheel alignment directly impacts your CRF250R's handling precision and chain longevity—two factors that separate smooth, predictable rides from costly drivetrain wear. Pro Circuit's billet aluminum axle blocks lock your rear wheel into optimal...HAB00- SKU:
- HAB00
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- AXLE BLOCK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
$59.95 -
Pro Circuit Axle Blocks Brown KX125 250 250F 450F RM-Z250 KAB03
PRO CIRCUIT
$59.95Proper rear wheel alignment is non-negotiable for consistent handling and chain longevity, and Pro Circuit Axle Blocks deliver precision engineering that keeps your suspension geometry dialed in. Built from billet aluminum and CNC-machined to exact...12310268- SKU:
- 12310268
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- COLOR/FINISH:
- BROWN
- PRODUCT NAME:
- AXLE BLOCK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
$59.95 -
Pro Circuit Axle Blocks KX250F 2017-2025 KAB17
PRO CIRCUIT
$62.95Misaligned axle blocks accelerate wear on your drivetrain and compromise handling at speed—two problems that directly cost you race time and money. Pro Circuit's billet aluminum blocks maintain precise rear wheel geometry, keeping your chain and...12310835- SKU:
- 12310835
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- HARD ANODIZED
- UNITS:
- PAIR
- PRODUCT NAME:
- AXLE BLOCK
- MATERIAL:
- BILLET ALUMINUM
$62.95 -
PARTS UNLIMITED 520 - Drive Chain - 110 Links T520110
PARTS UNLIMITED
$29.95A reliable 520-pitch chain is fundamental to any high-performance drivetrain—it needs to deliver consistent power transfer without sacrificing durability or breaking your budget. The Parts Unlimited 520 offers straightforward, dependable performance at a...T520110- SKU:
- T520110
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- CHAIN SIZE:
- 520
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- NUMBER OF LINKS:
- 110
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 29.3 KN
- UNITS:
- EACH
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
PARTS UNLIMITED 520 - Drive Chain - 112 Links T520112
PARTS UNLIMITED
$42.95A reliable 520-pitch chain is essential for consistent power delivery and minimal drivetrain slack, whether you're running a sport bike, go-kart, or small-displacement race engine. This precut 112-link configuration eliminates guesswork during...T520112- SKU:
- T520112
- Availability:
- Ships Same Business Day
- Weight:
- 3.63 LBS
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
- TENSILE STRENGTH METRIC:
- 29.3 KN
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 112
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SEAL TYPE:
- NON-SEAL
$42.95Qty in Cart: 0Quantity:Price:$42.95Subtotal: -
PARTS UNLIMITED 520 - Drive Chain - 116 Links T520116
PARTS UNLIMITED
$31.95A reliable 520 chain is fundamental to any high-performance drivetrain—it needs to transmit power consistently without sacrificing longevity or requiring constant maintenance. The Parts Unlimited 520-116 delivers exactly that: a production-grade chain...T520116- SKU:
- T520116
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 29.3 KN
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- RIDING STYLE:
- UTV
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 116
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
$31.95Qty in Cart: 0Quantity:Price:$31.95Subtotal: -
PARTS UNLIMITED 520H - Drive Chain - 112 Links T520H112
PARTS UNLIMITED
$42.95A 520H drive chain is the workhorse backbone of your drivetrain—it transmits engine power directly to the rear wheel, and a worn or undersized chain will rob you of performance and reliability. This 112-link version from Parts Unlimited delivers the...T520H112- SKU:
- T520H112
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- RIDING STYLE:
- ATV
- TENSILE STRENGTH IMPERIAL:
- 7450 LB
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 33.1 KN
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 H
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 112
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SEAL TYPE:
- NON-SEAL
$42.95Qty in Cart: 0Quantity:Price:$42.95Subtotal: -
PARTS UNLIMITED 420 - Drive Chain - 132 Links T420132
PARTS UNLIMITED
$19.95A reliable drive chain is foundational to any powersports build—whether you're running a go-kart, mini bike, or small-displacement engine. This 420-pitch chain delivers consistent power transfer without the premium price tag, making it an ideal choice...T420132- SKU:
- T420132
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SEAL TYPE:
- NON-SEAL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- TENSILE STRENGTH IMPERIAL:
- 3950 LB
- TENSILE STRENGTH METRIC:
- 17.5 KN
- CHAIN SIZE:
- 420
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 80 CC
- NUMBER OF LINKS:
- 132
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 80 CC
$19.95 -
PARTS UNLIMITED 428 - Drive Chain - 124 Links T428124
PARTS UNLIMITED
$19.95A reliable 428 chain is fundamental to any drivetrain requiring consistent power delivery and durability. Whether you're building a go-kart, mini bike, or running a 428 sprocket setup on your project, this precut chain eliminates the guesswork of sizing...T428124- SKU:
- T428124
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 4050 LB
- TENSILE STRENGTH METRIC:
- 18 KN
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 124
- RIDING STYLE:
- UTV
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 125 CC
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
PARTS UNLIMITED 428H - Drive Chain - 120 Links T428H120
PARTS UNLIMITED
$24.95A reliable 428H chain is fundamental to any mid-range engine build—whether you're running a small-block cruiser or a pit bike setup. This Parts Unlimited offering delivers OEM-quality construction at a price point that won't force compromises elsewhere...T428H120- SKU:
- T428H120
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- RIDING STYLE:
- UTV
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 200 CC
- CHAIN SIZE:
- 428
- CHAIN TYPE:
- 428 H
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 200 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 120
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 4050 LB
- TENSILE STRENGTH METRIC:
- 18 KN
$24.95 -
PARTS UNLIMITED Single Bearing - 5/8 x 1-3/8 499502H
PARTS UNLIMITED
$6.30Sealed bearings are critical to reliable performance in high-speed applications, protecting against contamination and extending component life. The PARTS UNLIMITED 5/8 x 1-3/8 bearing delivers consistent, low-friction operation with a triple-seal design...499502H- SKU:
- 499502H
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- INSIDE DIAMETER:
- 15,9 MM (5/8')
- OUTSIDE DIAMETER:
- 34,9 MM (1-3/8')
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- THICKNESS:
- 11 MM
- TYPE:
- DOUBLE SEAL
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- STYLE:
- SMOOTH
$6.30 -
MOOSE RACING Clutch Kit M90-229
MOOSE RACING
$119.73A quality clutch kit is fundamental to reliable power transfer and consistent engagement, whether you're logging track miles or pushing your build to the next level. The MOOSE RACING Clutch Kit M90-229 consolidates all critical clutch components into a...11312453- SKU:
- 11312453
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- FEATURES:
- INCLUDES GASKET
- PRODUCT NAME:
- CLUTCH KIT
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES SPRINGS
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- COMPLETE
- UNITS:
- KIT
$119.73 -
MOOSE RACING Clutch Springs MHDS27-6
MOOSE RACING
$17.97A worn or weak clutch spring forces you to work harder at the lever and compromises your power delivery when it matters most. MOOSE RACING's precision-wound clutch springs restore crisp engagement and eliminate the mushy feel that develops over time,...11310517- SKU:
- 11310517
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- SPRING SET
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
- UNITS:
- SET
$17.97 -
MOOSE RACING Clutch Friction Plates M70-5700-8
MOOSE RACING
$138.81Clutch fade under hard acceleration is a performance killer—and these MOOSE RACING friction plates eliminate it. Engineered with premium heat-resistant friction material, the M70-5700-8 delivers consistent, predictable power transfer lap after lap...11310082- SKU:
- 11310082
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FRICTION PLATE SET
- UNITS:
- SET
$138.81 -
MOOSE RACING Clutch Friction Plates M70-5507-9
MOOSE RACING
$150.47Clutch fade under sustained track conditions can cost you critical lap time and reliability. The MOOSE RACING M70-5507-9 friction plates deliver consistent, predictable power transfer lap after lap with heat-resistant material engineered to maintain...11310089- SKU:
- 11310089
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- FRICTION PLATE SET
- UNITS:
- SET
$150.47 -
MOOSE RACING Clutch Friction Plates M70-5508-7
MOOSE RACING
$136.69Clutch fade during high-rpm shifts kills performance and costs you consistency on the track or the street. The MOOSE RACING M70-5508-7 friction plates eliminate that problem with heat-resistant materials engineered to deliver predictable, fade-free...11310090- SKU:
- 11310090
- Availability:
- Ships Same Business Day
- Weight:
- 0.78 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- FRICTION PLATE SET
- UNITS:
- SET
$136.69 -
MOOSE RACING Clutch Springs MHDS115-6
MOOSE RACING
$17.97A worn or weak OEM clutch spring compromises both modulation and durability, forcing you to work harder at the lever while sacrificing engagement consistency. MOOSE Racing's precision-wound clutch springs restore crisp actuation and eliminate the mushy...11310093- SKU:
- 11310093
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- SPRING SET
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
$17.97 -
MOOSE RACING Clutch Springs MHDS116-6
MOOSE RACING
$17.97A worn or weak clutch spring directly impacts your lever feel and engagement consistency—two factors that separate precise control from sloppy, unpredictable shifts. MOOSE Racing clutch springs restore crisp actuation and deliver the responsive feedback...11310097- SKU:
- 11310097
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING SET
- UNITS:
- SET
$17.97Qty in Cart: 0Quantity:Price:$17.97Subtotal: -
MOOSE RACING Clutch Basket M270
MOOSE RACING
$263.89Stock clutch baskets wear prematurely and generate excessive heat under sustained load, degrading friction materials and reducing engagement consistency. The MOOSE RACING M270 delivers measurably better thermal management and durability through precision...11320175- SKU:
- 11320175
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- COLOR/FINISH:
- ANODIZED
- UNITS:
- EACH
- MATERIAL:
- 6061 AIRCRAFT-GRADE ALUMINUM ALLOY
- PRODUCT NAME:
- CLUTCH BASKET
- RIDING STYLE:
- OFF-ROAD
$263.89
