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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Wiseco Clutch Basket for Kawasaki KX125 2003-2005 WPP3026
WISECO
$289.95A worn or stock clutch basket limits your KX125's rev response and generates excess heat under aggressive riding. The Wiseco WPP3026 replaces rotational mass with precision engineering, delivering quicker acceleration and improved durability when you're...11320249- SKU:
- 11320249
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- PRECISION FORGED
- MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- CLUTCH BASKET
- UNITS:
- EACH
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
$289.95 -
WORKS CONNECTION Elite Axle Block Kit - Blue 17-250
WORKS CONNECTION
$108.95If you're running hard on the track, your axles are working harder. The WORKS CONNECTION Elite Axle Block Kit converts your fixed axle to a floating design, reducing stress on drivetrain components and extending service intervals between rebuilds. This...12311001- SKU:
- 12311001
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- AXLE BLOCK
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$108.95 -
WORKS CONNECTION Elite Axle Block Kit - Red 17-255
WORKS CONNECTION
$108.95A floating axle setup dramatically reduces unsprung weight and improves suspension responsiveness by allowing independent axle rotation during compression cycles. This WORKS CONNECTION Elite kit converts your fixed axle to floating geometry with titanium...12311002- SKU:
- 12311002
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- AXLE BLOCK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$108.95 -
MOOSE RACING Dual Sprocket MSE - Orange - 51-Tooth 1210-897-51-14X
MOOSE RACING
$69.95A rear sprocket needs to deliver consistent power transfer lap after lap without weighing down your chassis. The MOOSE RACING Dual Sprocket MSE combines a lightweight 7075 T6 aluminum inner ring with a hardened steel outer ring, giving you the durability...12101525- SKU:
- 12101525
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- PRODUCT NAME:
- SPROCKET
- STYLE:
- DUAL
- TOOTH COUNT:
- 51
- MOUNTING POSITION:
- REAR
$69.95 -
MOOSE RACING 520 FB - Chain - 116 Links 195FB116
MOOSE RACING
$141.95If you're running a 450cc-plus machine at the track or pushing hard on the street, chain failure isn't an option—it's a catastrophe. The Moose Racing 520 FB delivers the highest tensile strength in our lineup at nearly 8,000 lbs., engineered through fine...12220102- SKU:
- 12220102
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 7937 LB
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 FB
- NUMBER OF LINKS:
- 116
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SEAL TYPE:
- FB-RING
- TENSILE STRENGTH METRIC:
- 35.3 KN
- MODEL:
- FB SERIES
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 750 CC
- PRODUCT NAME:
- DRIVE CHAIN
$141.95 -
MOOSE RACING 520 FB - Chain - 120 Links 195FB120
MOOSE RACING
$146.95If you're running a high-performance 450cc or larger machine, chain failure isn't an option—it's a catastrophic outcome. The MOOSE RACING 520 FB delivers the tensile strength and durability demanded by professional racers and serious enthusiasts, with...12220103- SKU:
- 12220103
- Availability:
- Ships Same Business Day
- Weight:
- 4.69 LBS
- MASTER LINK CONNECTOR:
- RIVET
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 750 CC
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 FB
- MODEL:
- FB SERIES
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SEAL TYPE:
- FB-RING
- TENSILE STRENGTH METRIC:
- 35.3 KN
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 7937 LB
$146.95Qty in Cart: 0Quantity:Price:$146.95Subtotal: -
MOOSE RACING 520 FB - O-Ring Chain Connecting Link 195FB-CL
MOOSE RACING
$7.95A worn or damaged connecting link compromises chain integrity and can lead to catastrophic drivetrain failure on the track or trail. The MOOSE RACING 520 FB connecting link delivers OEM-quality construction with reliable O-ring sealing, ensuring your...12250056- SKU:
- 12250056
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- CHAIN TYPE:
- 520 FB
- MODEL:
- FB SERIES
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- NUMBER OF LINKS:
- 1
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$7.95Qty in Cart: 0Quantity:Price:$7.95Subtotal: -
GATES Belt Drive - Standard - Powerlink PL20705
GATES
$33.66A worn or undersized CVT belt directly impacts your scooter's acceleration response and fuel economy. The GATES Powerlink PL20705 delivers OEM-equivalent performance with modern material technology, ensuring smooth power delivery and reliable engagement...12040018- SKU:
- 12040018
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$33.66 -
GATES Belt Drive - Premium - Powerlink PL30509
GATES
$41.57A worn or undersized belt is the fastest way to kill acceleration and bleed fuel efficiency in CVT-driven applications. The GATES Powerlink PL30509 is engineered specifically for street-legal scooters and similar motorized CVT systems, delivering the...12040023- SKU:
- 12040023
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
$41.57 -
PROX 420 MX Chain - 130 Link 07.RC420130C
PROX
$49.95A high-performance MX chain needs to handle aggressive acceleration, cornering forces, and prolonged use without stretching or breaking. The PROX 420 MX Chain delivers the durability and precision fit that serious riders demand, whether you're pushing...12310885- SKU:
- 12310885
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MASTER LINK CONNECTOR:
- CLIP
- PRODUCT NAME:
- DRIVE CHAIN
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 130
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
- SEAL TYPE:
- QX-RING
$49.95 -
PROX 420 MX Clip Connecting Link 07.RC420CL
PROX
$5.99A chain is only as reliable as its weakest link—literally. The PROX 420 MX Clip Connecting Link delivers the precision engineering and durability demanded by competitive riders and serious mechanics who can't afford mid-race failures. Built with Japanese...12310886- SKU:
- 12310886
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- NATURAL
- NUMBER OF LINKS:
- 1
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- OFF-ROAD
- MASTER LINK CONNECTOR:
- CLIP
- UNITS:
- EACH
- SEAL TYPE:
- QX-RING
$5.99 -
PROX 428 MX Chain - 130 Link 07.RC428130C
PROX
$69.95A reliable 428 chain is non-negotiable for consistent power delivery and predictable handling on the track or trail. The PROX 428 MX Chain combines Japanese steel construction with precision heat-treatment to withstand the demands of competitive riding...12310887- SKU:
- 12310887
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 130
- PRODUCT NAME:
- DRIVE CHAIN
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 428
- SEAL TYPE:
- QX-RING
$69.95 -
PROX 428 MX Clip Connecting Link 07.RC428CL
PROX
$5.99A reliable chain connection is non-negotiable in competitive riding—a failed link means a DNF. The PROX 428 MX Clip Connecting Link delivers the durability demanded by professional and amateur racers alike, engineered with heat-treated components and...12310888- SKU:
- 12310888
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- CONNECTING LINK
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- QX-RING
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 1
$5.99 -
PROX 520 MX Chain - 120 Link 07.RC520120C
PROX
$104.95Chain durability directly impacts your power transfer efficiency and overall race reliability—cheap chains wear prematurely and create inconsistent performance. The PROX 520 MX Chain delivers the strength and precision needed for high-RPM demands, with...12310889- SKU:
- 12310889
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- CHAIN TYPE:
- 520 MX
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- QX-RING
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- DRIVE CHAIN
- NUMBER OF LINKS:
- 120
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MASTER LINK CONNECTOR:
- CLIP
$104.95 -
PROX 520 MX Chain - Gold - 120 Link 07.RC520120CG
PROX
$105.95A quality MX chain is the backbone of reliable power transfer and consistent handling on the track or trail. The PROX 520 MX Chain delivers the durability and precision you need to focus on performance rather than maintenance failures. Built with...12310890- SKU:
- 12310890
- Availability:
- Ships Same Business Day
- Weight:
- 4.05 LBS
- CHAIN TYPE:
- 520 MX
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- QX-RING
- PRODUCT NAME:
- DRIVE CHAIN
- UNITS:
- EACH
- NUMBER OF LINKS:
- 120
- CHAIN SIZE:
- 520
- MASTER LINK CONNECTOR:
- CLIP
$105.95 -
PROX 520 X-Ring Chain - 120 Link 07.RC520120XC
PROX
$125.95A 520 chain is the workhorse of sport bike and small-displacement racing, and the PROX X-Ring delivers the durability and efficiency that separates consistent lap times from costly breakdowns. The sealed X-ring design cuts friction while extending...12310891- SKU:
- 12310891
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- CHAIN SIZE:
- 520
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
- CHAIN TYPE:
- 520 MX
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- QX-RING
- MASTER LINK CONNECTOR:
- CLIP
$125.95 -
PROX 520 X-Ring Chain - Gold - 120 Link 07.RC520120XCG
PROX
$129.95A chain is only as strong as its weakest link—and this one refuses to break. The PROX 520 X-Ring Chain delivers the reliability demanded by racers and high-performance riders who can't afford downtime, combining Japanese steel construction with...12310892- SKU:
- 12310892
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- CHAIN TYPE:
- 520 MX
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- QX-RING
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MASTER LINK CONNECTOR:
- CLIP
$129.95 -
PROX 520 MX Clip Connecting Link 07.RC520CL
PROX
$7.99A reliable chain connection is non-negotiable in high-performance riding, where power transfer demands precision and durability under extreme stress. The PROX 520 MX Clip Connecting Link delivers the strength and longevity required for competitive and...12310893- SKU:
- 12310893
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- NUMBER OF LINKS:
- 1
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- CONNECTING LINK
- UNITS:
- EACH
- CHAIN TYPE:
- 520 MX
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- QX-RING
- CHAIN SIZE:
- 520
- MASTER LINK CONNECTOR:
- CLIP
$7.99 -
PROX 520 MX Clip Connecting Link - Gold 07.RC520CLG
PROX
$7.99A reliable chain connection is non-negotiable in high-performance riding—any weak link directly impacts power transfer and safety. The PROX 520 MX Clip Connecting Link delivers the durability and precision engineering required for consistent performance,...12310894- SKU:
- 12310894
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- NUMBER OF LINKS:
- 1
- SEAL TYPE:
- QX-RING
- CHAIN SIZE:
- 520
- MASTER LINK CONNECTOR:
- CLIP
- UNITS:
- EACH
- CHAIN TYPE:
- 520 MX
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- OFF-ROAD
$7.99 -
PROX 520 MXR X-Ring Clip Connecting Link 07.RC520XCL
PROX
$7.99A quality connecting link is where reliability meets performance—it's the weakest link in your chain, literally, so upgrading to the PROX 520 MXR X-Ring Clip Connecting Link eliminates a potential failure point during critical race moments. The X-ring...12310895- SKU:
- 12310895
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- CHAIN SIZE:
- 520
- MASTER LINK CONNECTOR:
- CLIP
- SEAL TYPE:
- QX-RING
- COLOR/FINISH:
- NATURAL
- NUMBER OF LINKS:
- 1
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$7.99Qty in Cart: 0Quantity:Price:$7.99Subtotal:
