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!
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- Qty in Cart
- Quantity
- Price
- Subtotal
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MOOSE RACING Front Sprocket - 13 Tooth - Yamaha/Kawasaki 26-4111-13CRMO
MOOSE RACING
$18.95A worn or incorrect front sprocket creates power loss, unpredictable throttle response, and accelerated chain wear—problems that compound under racing conditions. The MOOSE RACING 13-tooth front sprocket delivers the precision fitment and material...12122184- SKU:
- 12122184
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$18.95 -
MOOSE RACING Front Sprocket - 12 Tooth - Beta/Husaberg/Husqvarna/KTM 26-5122-12CRMO
MOOSE RACING
$21.95A worn or undersized front sprocket directly impacts throttle response, acceleration, and overall drivetrain efficiency. The MOOSE RACING 12-tooth sprocket is engineered to handle the demands of competitive riding and high-mileage trail use, delivering...12122216- SKU:
- 12122216
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
$21.95 -
MOOSE RACING Front Sprocket - 13 Tooth - Beta/Husaberg/Husqvarna/KTM 26-5122-13CRMO
MOOSE RACING
$22.95A worn or improperly sized front sprocket kills acceleration and strains your entire drivetrain. The MOOSE RACING 13-tooth front sprocket delivers precision engineering and OEM-matching fitment to restore reliable power transfer across Beta, Husaberg,...12122217- SKU:
- 12122217
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
$22.95 -
MOOSE RACING Front Sprocket - 14 Tooth - Beta/Husaberg/Husqvarna/KTM 26-5122-14CRMO
MOOSE RACING
$22.95A worn or undersized front sprocket limits acceleration and forces your engine to work harder than necessary, reducing efficiency and increasing wear on your drivetrain. The MOOSE RACING 14-tooth front sprocket delivers precise engagement with your...12122218- SKU:
- 12122218
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
$22.95 -
MOOSE RACING Front Sprocket - 13 Tooth - KX250F/X D26-2151-13CRMO
MOOSE RACING
$21.95A worn or stock front sprocket can rob your KX250F/X of acceleration and throttle response, especially under load or in competitive conditions. The MOOSE RACING 13-tooth front sprocket delivers precise gear engagement through CMM-verified manufacturing,...12122251- SKU:
- 12122251
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
$21.95 -
MOOSE RACING Front Sprocket - 13 Tooth - Yamaha D26-4168-13CRMO
MOOSE RACING
$18.95A worn or incorrect front sprocket compromises throttle response and power delivery across your entire powerband. The MOOSE RACING 13-tooth front sprocket is precision-engineered to handle high-stress driveline forces while resisting wear and...12122267- SKU:
- 12122267
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$18.95 -
MOOSE RACING Front Sprocket - 13 Tooth - CRF125F/FB D26-5176-13CRMO
MOOSE RACING
$16.95A worn or incorrectly sized front sprocket directly impacts throttle response, acceleration, and overall driveline efficiency on your CRF125F/FB. This MOOSE Racing sprocket delivers the precision fit and durability you need to maintain peak performance...12122278- SKU:
- 12122278
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
$16.95 -
MOOSE RACING Front Sprocket - 13 Tooth - SX 85 D26-51A9-13CRMO
MOOSE RACING
$18.95The front sprocket is your direct mechanical link to the track—wear or deformation here bleeds performance everywhere else in the drivetrain. MOOSE Racing's 13-tooth chromoly sprocket is precision-engineered to resist impact wear while distributing...12122280- SKU:
- 12122280
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
$18.95 -
On Sale
PROX Clutch Basket - KX 250 17.4392F
PROX
MSRP: $299.95Now: $221.00Was: $299.95The stock clutch basket on your KX 250 will wear faster than your lap times improve. This PROX unit eliminates side-load wear and friction-induced heat through precision engineering and advanced coatings, letting you focus on throttle control instead of...11321967- SKU:
- 11321967
- Availability:
- Ships Same Business Day
- Weight:
- 1.62 LBS
MSRP: $299.95Now: $221.00Was: $299.95 -
On Sale
PROX Clutch Plate Set - Kawasaki/Suzuki 16.CPS41088
PROX
MSRP: $105.95Now: $93.00Was: $105.95When you're pushing your bike to the limit, a slipping clutch will cost you races and reliability. The PROX Clutch Plate Set delivers OEM-level durability with enhanced performance features specifically engineered for Kawasaki and Suzuki applications,...11312561- SKU:
- 11312561
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
MSRP: $105.95Now: $93.00Was: $105.95Qty in Cart: 0Quantity:Price:MSRP: $105.95Now: $93.00Was: $105.95Subtotal: -
On Sale
PROX Clutch Pressure Plate - KTM/Honda/Husaberg 18.P1286
PROX
MSRP: $59.31Now: $42.00Was: $59.31A worn or damaged clutch pressure plate compromises engagement consistency and can lead to slippage, heat buildup, and premature wear on your entire clutch system. The PROX Clutch Pressure Plate delivers OEM-grade precision and durability, ensuring...11311475- SKU:
- 11311475
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
MSRP: $59.31Now: $42.00Was: $59.31Qty in Cart: 0Quantity:Price:MSRP: $59.31Now: $42.00Was: $59.31Subtotal: -
On Sale
PROX Clutch Pressure Plate - Honda 18.P1392
PROX
MSRP: $55.95Now: $42.00Was: $55.95A worn or failing clutch pressure plate compromises your ability to modulate power delivery and can lead to slippage under load—ultimately costing you consistency on track or reliability on the street. The PROX 18.P1392 is precision-machined to OEM...11311479- SKU:
- 11311479
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
MSRP: $55.95Now: $42.00Was: $55.95 -
On Sale
PROX Clutch Plate Set - CRF 450R/X 16.CPS14002
PROX
MSRP: $193.95Now: $170.00Was: $193.95A worn or slipping clutch compromises your control and throttle response when you need it most. The PROX Clutch Plate Set delivers complete OEM-quality friction and steel plates engineered with 10% stiffer springs to eliminate slippage under extreme...11312510- SKU:
- 11312510
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
MSRP: $193.95Now: $170.00Was: $193.95 -
On Sale
PROX Clutch Plate Set - YZ 125/X 16.CPS22093
PROX
MSRP: $171.95Now: $144.00Was: $171.95If you're pushing your YZ 125/X to its limits, clutch slippage under load will cost you critical power delivery and control. This complete PROX Clutch Plate Set delivers the friction and steel plates your bike needs to handle aggressive riding, featuring...11312523- SKU:
- 11312523
- Availability:
- Ships Same Business Day
- Weight:
- 1.74 LBS
MSRP: $171.95Now: $144.00Was: $171.95Qty in Cart: 0Quantity:Price:MSRP: $171.95Now: $144.00Was: $171.95Subtotal: -
On Sale
PROX Clutch Set - KTM/Beta/Polaris 16.CPS64006
PROX
MSRP: $161.95Now: $119.00Was: $161.95A worn or slipping clutch robs you of the precision control and immediate throttle response your machine demands, especially under hard acceleration or extreme riding conditions. The PROX Clutch Set delivers OEM-quality steel plates paired with 10%...11312582- SKU:
- 11312582
- Availability:
- Ships Same Business Day
- Weight:
- 2.11 LBS
MSRP: $161.95Now: $119.00Was: $161.95 -
On Sale
PROX Clutch Plate Set - YZ 250F 16.CPS23115
PROX
MSRP: $193.95Now: $158.00Was: $193.95Clutch slippage under hard acceleration kills performance and costs you races. This PROX Clutch Plate Set delivers the complete friction and steel plate package your YZ 250F needs to maintain crisp engagement and reliable power transfer, even under...11313625- SKU:
- 11313625
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
MSRP: $193.95Now: $158.00Was: $193.95 -
T.M. DESIGNWORKS Chain Slider - Rear - Red - Beta RCG-BT3-RD
T.M. DESIGNWORKS
$117.95A worn or damaged chain slider accelerates wear on your rear sprocket and chain while introducing unpredictable slack into the drivetrain—exactly what you don't need on a Beta. The T.M. DESIGNWORKS rear chain slider combines race-tested engineering with...12311742- SKU:
- 12311742
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$117.95 -
MOOSE RACING 428 O-Ring Series - Drive Chain - 124 Links
MOOSE RACING
$95.95A reliable drive chain is the backbone of any high-performance drivetrain, and the MOOSE RACING 428 O-Ring Series delivers the durability and consistent power transfer that serious riders demand. The integrated O-ring seals maintain constant lubrication...12220714- SKU:
- 12220714
- Availability:
- Ships Same Business Day
- Weight:
- 3.62 LBS
$95.95 -
MOOSE RACING 525 O-Ring Series - Drive Chain - 124 Links
MOOSE RACING
$131.95A quality drive chain is fundamental to reliable power transfer and consistent performance on track or trail. The MOOSE RACING 525 O-Ring Series delivers the durability and precision expected in competitive environments, with self-lubricating seals that...12220719- SKU:
- 12220719
- Availability:
- Ships Same Business Day
- Weight:
- 5.47 LBS
$131.95 -
AXP RACING Chain Guide - Blue - Husqvarna AX1614
AXP RACING
$108.95A worn or damaged chain guide compromises both your drivetrain's longevity and your bike's overall performance. The AXP Racing Chain Guide replaces inferior OEM designs with a UHMW plastic construction that resists wear, impact, and abrasion far longer...12311680- SKU:
- 12311680
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- STREET
- MATERIAL:
- PLASTIC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
$108.95Qty in Cart: 0Quantity:Price:$108.95Subtotal:
