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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EK 428 SR - Heavy-Duty Non-Sealed Chain - 124 Links 428SR-124
EK
$39.54A reliable chain is the backbone of any high-performance drivetrain, and the EK 428 SR delivers proven durability without breaking your budget. Built with four-point riveting and solid bushings, this heavy-duty roller chain resists wear from demanding...K428SR124- SKU:
- K428SR124
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- STREET
- TENSILE STRENGTH IMPERIAL:
- 4894 LB
- TENSILE STRENGTH METRIC:
- 21.8 KN
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- STEEL ALLOY
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 80 CC
- MODEL:
- HEAVY DUTY
- NUMBER OF LINKS:
- 124
$39.54Qty in Cart: 0Quantity:Price:$39.54Subtotal: -
EK 428 SR - Heavy-Duty Non-Sealed Chain - 130 Links 428SR-130
EK
$50.95A reliable chain is the backbone of any high-performance drivetrain, and the EK 428 SR delivers dependable power transfer without the premium price tag. Built with four-point riveting and solid bushings, this heavy-duty roller chain resists wear and...K428SR130- SKU:
- K428SR130
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- CHAIN SIZE:
- 428
- MODEL:
- HEAVY DUTY
- TENSILE STRENGTH IMPERIAL:
- 4894 LB
- TENSILE STRENGTH METRIC:
- 21.8 KN
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- STEEL ALLOY
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 80 CC
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 130
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- RIDING STYLE:
- OFF-ROAD
$50.95 -
EK 428 SR - Heavy-Duty Non-Sealed Chain - 132 Links 428SR-132
EK
$50.95A reliable chain is the backbone of any high-performance drivetrain, and the EK 428 SR delivers the durability and consistency you need without premium pricing. Built with four-point riveting and solid bushings, this chain resists wear and stretching far...K428SR132- SKU:
- K428SR132
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- MODEL:
- HEAVY DUTY
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- STEEL ALLOY
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 80 CC
- CHAIN SIZE:
- 428
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- STREET
- TENSILE STRENGTH IMPERIAL:
- 4894 LB
- TENSILE STRENGTH METRIC:
- 21.8 KN
- UNITS:
- EACH
- NUMBER OF LINKS:
- 132
- RIDING STYLE:
- OFF-ROAD
$50.95 -
EK 428 SHDR - Motocross Series Chain - Gold - 132 Links 428SHDR-132G
EK
$94.95A motocross chain is only as reliable as its weakest link—literally. The EK 428 SHDR combines precision engineering with proven durability to keep you focused on speed, not maintenance. Built with CRH pin treatment for extended chain life and reduced...12220055- SKU:
- 12220055
- Availability:
- Ships Same Business Day
- Weight:
- 2.97 LBS
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 200 CC
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- NON-SEAL
- CHAIN SIZE:
- 428
- NUMBER OF LINKS:
- 132
- TENSILE STRENGTH IMPERIAL:
- 5000 LB
- TENSILE STRENGTH METRIC:
- 22.2 KN
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- STREET
- WEIGHT:
- 1,03 KG/100 LINKS
- CHAIN TYPE:
- 428 SHDR
- MODEL:
- SHDR SERIES
$94.95 -
EK 428 SROZ Series - Chain - 120 Links 428SROZ-120
EK
$115.95A reliable 428 chain is foundational to any high-performance drivetrain, and the EK 428 SROZ Series delivers proven durability without inflated pricing. O-ring sealing technology keeps lubrication where it belongs—inside the rollers—while blocking out...12220069- SKU:
- 12220069
- Availability:
- Ships Same Business Day
- Weight:
- 2.84 LBS
- CHAIN TYPE:
- 428 SROZ
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 23.6 KN
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 200 CC
- COLOR/FINISH:
- NATURAL
- SEAL TYPE:
- O-RING
- WEIGHT:
- 1,03 KG/100 LINKS
- CHAIN SIZE:
- 428
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- MODEL:
- SROZ SERIES
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- TENSILE STRENGTH IMPERIAL:
- 5300 LB
$115.95 -
EK 428 SROZ Series - Chain - 130 Links 428SROZ-130
EK
$124.95A quality drive chain is fundamental to reliable power transfer in any high-performance build, and the EK 428 SROZ Series delivers exactly that without the premium price tag. The O-ring seals work overtime to keep lubrication where it belongs and...12220070- SKU:
- 12220070
- Availability:
- Ships Same Business Day
- Weight:
- 3.09 LBS
- COLOR/FINISH:
- NATURAL
- SEAL TYPE:
- O-RING
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- MODEL:
- SROZ SERIES
- PRODUCT NAME:
- DRIVE CHAIN
- TENSILE STRENGTH METRIC:
- 23.6 KN
- CHAIN SIZE:
- 428
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 130
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 5300 LB
- UNITS:
- EACH
- CHAIN TYPE:
- 428 SROZ
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 200 CC
- WEIGHT:
- 1,03 KG/100 LINKS
$124.95 -
EK 520 MRD7 - Chain - 120 Links - Gold 520MRD7-120G
EK
$143.95The EK 520 MRD7 chain delivers the durability and precision required for serious motocross competition. This 120-link chain combines proven reliability with smooth power transfer, ensuring consistent performance lap after lap. Purpose-built for the...12220602- SKU:
- 12220602
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 MRD7
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 500 CC
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 8900 LB
- TENSILE STRENGTH METRIC:
- 39.6 KN
- MODEL:
- MRD SERIES
- UNITS:
- EACH
$143.95 -
EK 520 M3 - Chain - 120 Links - Gold 520M3-120G
EK
$143.95A quality drive chain is fundamental to consistent power delivery and acceleration response in any performance application. The EK 520 M3 combines lightweight construction with hardened materials to reduce parasitic losses while maintaining the...12220603- SKU:
- 12220603
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- CHAIN TYPE:
- 520 M3
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- NON-SEAL
- CHAIN SIZE:
- 520
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 450 CC
- MODEL:
- M3 SERIES
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- TENSILE STRENGTH IMPERIAL:
- 8230 LB
- TENSILE STRENGTH METRIC:
- 36.6 KN
- UNITS:
- EACH
$143.95 -
EK 428 SROZ - Clip Connecting Link 428SROZ-SKJ
EK
$6.95A worn or damaged chain connecting link compromises power transfer and creates safety risks at high RPM. The EK 428 SROZ Clip Connecting Link delivers reliable, repeatable performance for both street and track applications. This OEM-quality replacement...12250030- SKU:
- 12250030
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- CHAIN TYPE:
- 428 SROZ
- RIDING STYLE:
- OFF-ROAD
- NUMBER OF LINKS:
- 1
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- NATURAL
- MODEL:
- SROZ SERIES
- PRODUCT NAME:
- CONNECTING LINK
- TYPE:
- CLIP
- UNITS:
- EACH
$6.95 -
EK 520 MRD7 - Connecting Link - Clip - Gold 520MRD7-SPJ/G
EK
$5.95A worn or damaged connecting link compromises chain integrity, reducing power transfer efficiency and risking catastrophic drivetrain failure during high-load acceleration or sustained racing conditions. The EK 520 MRD7 replacement connecting link...12250640- SKU:
- 12250640
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- CLIP
- CHAIN TYPE:
- 520 MRD7
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- NUMBER OF LINKS:
- 1
- RIDING STYLE:
- OFF-ROAD
$5.95 -
EK 520 M3 - Clip Connecting Link - Gold 520M3-SPJ/G
EK
$5.95A properly functioning chain connecting link is critical to maintaining secure power delivery from your engine to the wheels—any slack or wear here compromises your entire drivetrain. The EK 520 M3 Clip Connecting Link is engineered for consistent...12250641- SKU:
- 12250641
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- TYPE:
- CLIP
- CHAIN TYPE:
- 520 M3
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
$5.95 -
BARNETT Drive Plate 401-90-078026
BARNETT
$8.79A precision drive plate is critical for transmitting engine torque to your transmission without slippage or flex—especially under high-horsepower applications where stock components fail. BARNETT's drive plate delivers the rigidity and durability needed...2012237- SKU:
- 2012237
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DRIVE PLATE (STEEL PLATE)
- TYPE:
- CLUTCH
- UNITS:
- EACH
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$8.79 -
BARNETT Drive Plate 401-90-047049
BARNETT
$8.79The BARNETT Drive Plate 401-90-047049 is engineered to transmit engine power reliably through your drivetrain while maintaining precision tolerances under high-load conditions. Whether you're running a street machine or a dedicated race car, this U.S...YP4912- SKU:
- YP4912
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- DRIVE PLATE (STEEL PLATE)
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$8.79 -
BARNETT Drive Plate 401-90-063049
BARNETT
$8.79Product Name - 40190063049 Crafted with precision in the U.S.A. for superior quality. Durable materials ensure long-lasting performance and reliability. Innovative design enhances functionality and user experience. Lightweight and...YP4916- SKU:
- YP4916
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- TYPE:
- CLUTCH
- PRODUCT NAME:
- DRIVE PLATE (STEEL PLATE)
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$8.79 -
BARNETT Clutch Friction Plate 301-90-10049
BARNETT
$18.77Clutch slippage under load compromises acceleration and wastes power transfer—a problem that worsens with aggressive driving or high-horsepower applications. The BARNETT Clutch Friction Plate 301-90-10049 delivers reliable engagement and heat resistance...YPK49- SKU:
- YPK49
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- FRICTION PLATE MATERIAL:
- ARAMID FIBER
- PRODUCT NAME:
- FRICTION PLATE
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$18.77 -
BARNETT Clutch Kit 303-90-20049
BARNETT
$292.55A worn clutch directly impacts your dirt bike's power delivery and throttle response—costing you lap time and control. The BARNETT Complete Dirt Digger Clutch Kit restores factory engagement characteristics while improving durability under aggressive...YPK49DCF- SKU:
- YPK49DCF
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- MODEL:
- DIRT DIGGER
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- UNITS:
- KIT
$292.55 -
BARNETT Clutch Kit 302-45-10013
BARNETT
$138.22A reliable clutch is the foundation of consistent power delivery and longevity in any high-performance application. The BARNETT Clutch Kit 302-45-10013 delivers the friction control and durability you need for both street and track duty, whether you're...2012407- SKU:
- 2012407
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- RIDING STYLE:
- STREET
- TYPE:
- FRICTION PLATE SET
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- PRODUCT NAME:
- CLUTCH KIT
- DRIVE PLATE MATERIAL:
- STEEL
- MODEL:
- DIRT DIGGER
- UNITS:
- KIT
$138.22 -
BARNETT Clutch Kit 303-35-10003
BARNETT
$132.86A properly functioning clutch is essential for reliable power delivery and longevity in high-performance applications. The BARNETT Clutch Kit 303-35-10003 delivers consistent engagement and disengagement through precision-engineered friction plates,...2012500- SKU:
- 2012500
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- MODEL:
- DIRT DIGGER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- PRODUCT NAME:
- CLUTCH KIT
$132.86 -
BARNETT Clutch Kit 303-35-10005
BARNETT
$184.53A quality clutch kit is foundational to reliable power transfer and consistent engagement, especially if you're pushing your machine hard or replacing worn components. The BARNETT Clutch Kit 303-35-10005 delivers OEM-grade construction with...2012505- SKU:
- 2012505
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- MODEL:
- DIRT DIGGER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
$184.53 -
HOT RODS Transmission Bearings Kit TBK0024
HOT RODS
$151.95A transmission rebuild demands precision components that can handle sustained load cycles and maintain tight tolerances. The HOT RODS Transmission Bearings Kit TBK0024 supplies the critical bearing set you need for primary and secondary shaft...11060112- SKU:
- 11060112
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TRANSMISSION
$151.95Qty in Cart: 0Quantity:Price:$151.95Subtotal:
