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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MOOSE RACING 428 RXP Pro-MX Chain - Gold - 120 Links M575-00-120
MOOSE RACING
$42.95For mini-racing applications demanding reliable power transfer and durability, the MOOSE RACING 428 RXP Pro-MX Chain delivers the tensile strength and corrosion resistance required to handle sustained high-RPM operation. Built with nickel-plated inner...M57500120- SKU:
- M57500120
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- CHAIN TYPE:
- 428 RXP
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 5071 LB
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 125 CC
- RIDING STYLE:
- UTV
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH METRIC:
- 22.6 KN
- UNITS:
- EACH
- MODEL:
- RXP SERIES
- RIDING STYLE:
- STREET
$42.95Qty in Cart: 0Quantity:Price:$42.95Subtotal: -
MOOSE RACING 428 RXP Pro-MX Chain - Gold - 90 Links M575-00-90
MOOSE RACING
$33.95If you're running a high-powered mini-racing machine, your chain is the critical link between engine output and track performance. The MOOSE RACING 428 RXP Pro-MX delivers the durability and tensile strength required for aggressive acceleration and...M5750090- SKU:
- M5750090
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- CHAIN SIZE:
- 428
- NUMBER OF LINKS:
- 90
- RIDING STYLE:
- STREET
- TENSILE STRENGTH METRIC:
- 22.6 KN
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 125 CC
- RIDING STYLE:
- UTV
- CHAIN TYPE:
- 428 RXP
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MODEL:
- RXP SERIES
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TENSILE STRENGTH IMPERIAL:
- 5071 LB
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- NON-SEAL
$33.95 -
MOOSE RACING 428 RXP Pro-MX Chain - Gold - 96 Links M575-00-96
MOOSE RACING
$34.95If you're running a high-powered mini racing machine, chain failure isn't an option—it's a catastrophe. The MOOSE RACING 428 RXP Pro-MX delivers the tensile strength and durability needed to handle the demands of competitive mini racing, with a...M5750096- SKU:
- M5750096
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- CHAIN TYPE:
- 428 RXP
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- NUMBER OF LINKS:
- 96
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 5071 LB
- TENSILE STRENGTH METRIC:
- 22.6 KN
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 125 CC
- MODEL:
- RXP SERIES
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$34.95 -
VORTEX Aluminum Sprocket - Silver - Rear - 36 Tooth 206-36
VORTEX
$59.95A rear sprocket is fundamental to your drivetrain's efficiency and longevity. The VORTEX 36-tooth aluminum design delivers reliable power transfer while resisting wear, letting you push harder without premature chain and sprocket degradation. Built with...12111714- SKU:
- 12111714
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 36
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- TYPE:
- DRIVE
$59.95 -
VORTEX Aluminum Sprocket - Silver - Rear - 37-Tooth 206-37
VORTEX
$59.95A properly matched rear sprocket is critical for maintaining optimal chain tension, gear ratio performance, and powertrain longevity. The VORTEX 37-Tooth Aluminum Sprocket delivers precision engineering with a tooth profile specifically designed to...12111715- SKU:
- 12111715
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- SILVER
- TYPE:
- DRIVE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 37
- UNITS:
- EACH
- CHAIN SIZE:
- 420
$59.95 -
VESRAH Clutch Spring Set SK-224
VESRAH
$9.33A worn or inconsistent clutch spring set compromises your bike's engagement feel and overall drivetrain reliability—especially under racing conditions or aggressive riding. The VESRAH Clutch Spring Set SK-224 delivers the durability and precision needed...11310679- SKU:
- 11310679
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPRING SET
- SPRING MATERIAL:
- STEEL
- TYPE:
- CLUTCH
- UNITS:
- SET
$9.33 -
PARTS UNLIMITED 520 - Drive Chain - 114 Links T520114
PARTS UNLIMITED
$31.95A reliable 520-pitch chain is fundamental to consistent power delivery and predictable handling on track or trail. This PARTS UNLIMITED offering delivers the durability and precision you need without unnecessary markup, making it an intelligent choice...T520114- SKU:
- T520114
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
- CHAIN SIZE:
- 520
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TENSILE STRENGTH METRIC:
- 29.3 KN
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- NUMBER OF LINKS:
- 114
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- SEAL TYPE:
- NON-SEAL
$31.95Qty in Cart: 0Quantity:Price:$31.95Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 13144-1103-14T
PARTS UNLIMITED
$14.23A worn or damaged countershaft sprocket directly impacts your bike's acceleration, top-end performance, and overall drivetrain efficiency. This OEM-spec replacement ensures you're running the exact same precision-engineered component your machine was...K222767- SKU:
- K222767
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- TOOTH COUNT:
- 14
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
$14.23 -
PARTS UNLIMITED Countershaft Sprocket - 15-Tooth 13144-1103-15T
PARTS UNLIMITED
$14.23A worn or damaged countershaft sprocket compromises power delivery and can lead to premature chain wear or catastrophic drivetrain failure. This PARTS UNLIMITED 15-tooth sprocket is manufactured to OEM specifications using hardened steel, ensuring the...K222768- SKU:
- K222768
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 15
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
$14.23Qty in Cart: 0Quantity:Price:$14.23Subtotal: -
PARTS UNLIMITED Counter Shaft Sprocket - 14-Tooth 27511-14300
PARTS UNLIMITED
$14.23A worn or damaged counter shaft sprocket directly impacts your drivetrain's efficiency and can lead to costly chain wear or missed shifts under load. The PARTS UNLIMITED 14-tooth counter shaft sprocket restores OEM-spec performance with...K222867- SKU:
- K222867
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
$14.23 -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 28300-040-00
PARTS UNLIMITED
$6.07A worn or damaged countershaft sprocket directly impacts throttle response, power delivery, and drivetrain longevity. This OEM-spec replacement restores precise chain engagement and eliminates slack that compromises acceleration and handling. Whether...K222889- SKU:
- K222889
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- CHAIN SIZE:
- 420
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 14
$6.07Qty in Cart: 0Quantity:Price:$6.07Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 13144-129513
PARTS UNLIMITED
$8.11A worn or damaged countershaft sprocket directly compromises your engine's power delivery and clutch engagement—leading to missed shifts, power loss, and accelerated wear on your entire drivetrain. This 13-tooth sprocket is manufactured to OEM...12120342- SKU:
- 12120342
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
$8.11 -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 13144-129514
PARTS UNLIMITED
$8.11A worn or damaged countershaft sprocket directly impacts your power delivery and chain engagement, leading to poor acceleration and potential drivetrain damage. This OEM-spec replacement restores precise tooth geometry and spline engagement, ensuring...12120343- SKU:
- 12120343
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TOOTH COUNT:
- 14
$8.11 -
MOOSE RACING Steel Drive Plates M80-7104-7
MOOSE RACING
$54.95If you're running aluminum clutch drive plates, you're already behind on reliability and performance. The MOOSE RACING Steel Drive Plates M80-7104-7 eliminate fade and expansion issues entirely, delivering 300% longer service life while the increased...M807104- SKU:
- M807104
- Availability:
- Ships Same Business Day
- Weight:
- 1.18 LBS
- PRODUCT NAME:
- DRIVE PLATE SET (STEEL PLATE SET)
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CLUTCH
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
$54.95 -
MOOSE RACING Steel Clutch Plates M80-7105-5
MOOSE RACING
$36.95Stock aluminum clutch plates are compromised by fade, expansion, and premature wear—especially under high-load racing conditions. The MOOSE RACING Steel Clutch Plates M80-7105-5 eliminate these weaknesses entirely, delivering superior durability and...M8071055- SKU:
- M8071055
- Availability:
- Ships Same Business Day
- Weight:
- 0.78 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- DRIVE PLATE SET (STEEL PLATE SET)
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- UNITS:
- SET
$36.95Qty in Cart: 0Quantity:Price:$36.95Subtotal: -
MOOSE RACING Steel Clutch Plates M80-7111-2
MOOSE RACING
$17.95If you're running aluminum clutch plates, you're accepting a compromise between weight and durability—one that costs you performance and frequent replacement cycles. The MOOSE RACING Steel Clutch Plates M80-7111-2 eliminate that trade-off by delivering a...M8071112- SKU:
- M8071112
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- UNITS:
- SET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- DRIVE PLATE SET (STEEL PLATE SET)
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$17.95Qty in Cart: 0Quantity:Price:$17.95Subtotal: -
MOOSE RACING Clutch Kit M90-124
MOOSE RACING
$127.95A stock clutch can only hold so much before it starts slipping under load. The MOOSE RACING Clutch Kit M90-124 delivers consistent engagement and superior holding power, whether you're on the track or pushing hard on the street. This complete clutch...11311854- SKU:
- 11311854
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- COMPLETE
- FEATURES:
- INCLUDES GASKET
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES SPRINGS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$127.95 -
MOOSE RACING Clutch Kit M90-128
MOOSE RACING
$197.95A worn or inefficient clutch compromises power delivery and creates unpredictable engagement—costing you consistency on the track and reliability on the street. The MOOSE RACING Clutch Kit M90-128 delivers precise, repeatable clutch feel with OEM-quality...11311856- SKU:
- 11311856
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- TYPE:
- COMPLETE
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES GASKET
- FEATURES:
- INCLUDES SPRINGS
- UNITS:
- KIT
$197.95 -
MOOSE RACING Clutch Kit M90-206
MOOSE RACING
$227.95A clutch system is only as strong as its weakest component—which is why the MOOSE RACING Clutch Kit M90-206 integrates all critical friction and pressure plate elements into a single, engineered package. This kit eliminates the guesswork of sourcing...11311858- SKU:
- 11311858
- Availability:
- Ships Same Business Day
- Weight:
- 2.31 LBS
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- COMPLETE
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES GASKET
- FEATURES:
- INCLUDES SPRINGS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$227.95 -
MOOSE RACING Clutch Kit M90-133
MOOSE RACING
$124.95A factory clutch wears out—ours is engineered to handle repeated heat cycles, aggressive downshifts, and sustained power delivery without slipping or chatter. Whether you're upgrading from OEM components or replacing a worn system, the MOOSE RACING...11311860- SKU:
- 11311860
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES SPRINGS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- FEATURES:
- INCLUDES GASKET
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- COMPLETE
$124.95
