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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SUPERSPROX Edge Rear Sprocket Insert - Gold RACD179245GLD
SUPERSPROX
$10.95Stamped steel sprockets flex under load and wear prematurely, robbing you of consistent power delivery and forcing costly replacements. The SUPERSPROX Edge Rear Sprocket Insert upgrades your...12102344- SKU:
- 12102344
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- INSERT
- COLOR/FINISH:
- GOLD
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD245346GLD
SUPERSPROX
$9.95Stamped steel sprockets wear unevenly and lose precision under race conditions—the SUPERSPROX Edge Rear Sprocket Insert upgrades you to a CNC-machined, hardened steel component that maintains...12102346- SKU:
- 12102346
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
$9.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD30242GLD
SUPERSPROX
$10.95A worn or damaged rear sprocket can compromise your entire drivetrain's efficiency and acceleration response. The SUPERSPROX Edge Rear Sprocket Insert upgrades your bike from stamped steel to a...12102347- SKU:
- 12102347
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Red RACD30242RED
SUPERSPROX
$10.95A worn or poorly-performing rear sprocket directly impacts your bike's acceleration, top-end speed, and overall drivetrain efficiency. The SUPERSPROX Edge Rear Sprocket Insert eliminates the weight...12102348- SKU:
- 12102348
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- INSERT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RED
- TYPE:
- EDGE REAR
- UNITS:
- EACH
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD47843GLD
SUPERSPROX
$10.95Traditional stamped steel sprockets flex under load, robbing you of precision and durability during hard acceleration and sustained high RPM runs. The SUPERSPROX Edge Rear Sprocket Insert delivers...12102350- SKU:
- 12102350
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Green RACD47843GRN
SUPERSPROX
$10.95A stamped steel sprocket limits your drivetrain's potential by introducing flex and wear inconsistencies under load. The SUPERSPROX Edge Rear Sprocket Insert upgrades you to precision-manufactured...12102351- SKU:
- 12102351
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- COLOR/FINISH:
- GREEN
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD47846GLD
SUPERSPROX
$10.95A worn or damaged rear sprocket can compromise your bike's acceleration, chain wear, and overall drivetrain efficiency. The SUPERSPROX Edge Rear Sprocket Insert delivers precision engineering in a...12102352- SKU:
- 12102352
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- INSERT
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- TYPE:
- EDGE REAR
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Green RACD47846GRN
SUPERSPROX
$10.95Traditional stamped steel sprockets flex under load and wear unevenly, robbing you of consistent power delivery and forcing premature replacement. The SUPERSPROX Edge Rear Sprocket Insert upgrades...12102353- SKU:
- 12102353
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GREEN
- UNITS:
- EACH
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Blue RACD48043BLU
SUPERSPROX
$10.95A worn or damaged rear sprocket can compromise your entire drivetrain's efficiency and acceleration response. The SUPERSPROX Edge Rear Sprocket Insert upgrades you from traditional stamped steel to...12102354- SKU:
- 12102354
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD80745GLD
SUPERSPROX
$10.95A worn or damaged rear sprocket compromises your chain drive efficiency, reducing power transfer and accelerating wear on your entire drivetrain. The SUPERSPROX Edge Rear Sprocket Insert in gold...12102365- SKU:
- 12102365
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Blue RACD82945BLU
SUPERSPROX
$10.95A quality rear sprocket insert directly impacts your bike's acceleration response, chain longevity, and overall drivetrain reliability. SUPERSPROX Edge inserts replace traditional stamped steel with...12102366- SKU:
- 12102366
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Blue RACD82947BLU
SUPERSPROX
$10.95Traditional stamped steel sprockets flex under load and wear unevenly, robbing you of consistent power delivery and forcing premature replacements. The SUPERSPROX Edge Rear Sprocket Insert upgrades...12102368- SKU:
- 12102368
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD82947GLD
SUPERSPROX
$10.95A quality rear sprocket insert directly impacts your bike's acceleration response, chain longevity, and overall drivetrain reliability. Traditional stamped steel sprockets wear unevenly and can...12102369- SKU:
- 12102369
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD86545GLD
SUPERSPROX
$10.95A worn or damaged rear sprocket insert compromises power delivery, increases drivetrain noise, and accelerates wear on your chain and countershaft. The SUPERSPROX Edge Rear Sprocket Insert upgrades...12102372- SKU:
- 12102372
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$10.95 -
SUPERSPROX Edge Rear Sprocket - Black - 45-Tooth RFA130445BLK
SUPERSPROX
$59.95The SUPERSPROX Edge Rear Sprocket delivers measurable weight savings without compromising durability, making it an ideal upgrade for riders seeking improved acceleration and reduced rotational mass...12102377- SKU:
- 12102377
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- MODEL:
- EDGE
$59.95 -
SUPERSPROX Edge Rear Sprocket - Black - 46-Tooth RFA130746BLK
SUPERSPROX
$59.95If you're running a mid-range bike and want meaningful weight savings without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers. This 46-tooth sprocket cuts 5–15% off your unsprung mass,...12102380- SKU:
- 12102380
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MODEL:
- EDGE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- STYLE:
- LIGHTWEIGHT
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
SUPERSPROX Edge Rear Sprocket - Black - 43-Tooth RFA30243BLK
SUPERSPROX
$54.95If you're running a mid-range bike and want measurable performance gains without breaking the bank, the SUPERSPROX Edge Rear Sprocket delivers exactly what you need. This 43-tooth sprocket cuts...12102386- SKU:
- 12102386
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
- UNITS:
- EACH
- MODEL:
- EDGE
- TOOTH COUNT:
- 43
- COLOR/FINISH:
- BLACK
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
SUPERSPROX Edge Rear Sprocket - Black - 45-Tooth RFA80745BLK
SUPERSPROX
$54.95The SUPERSPROX Edge Rear Sprocket delivers measurable weight savings without compromising durability, making it an ideal upgrade for riders seeking improved acceleration and handling response. By...12102394- SKU:
- 12102394
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MODEL:
- EDGE
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- LIGHTWEIGHT
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
SUPERSPROX Countershaft Sprocket - 12-Tooth CST-1590-12-1
SUPERSPROX
$24.95A worn or undersized countershaft sprocket limits your engine's ability to deliver power efficiently to the chain, causing energy loss and premature drivetrain wear. The SUPERSPROX 12-Tooth...12121342- SKU:
- 12121342
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- CHAIN SIZE:
- 520
- TOOTH COUNT:
- 12
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- UNITS:
- EACH
$24.95 -
SUPERSPROX Countershaft Sprocket - 14-Tooth CST-1590-14-1
SUPERSPROX
$24.95If you're running a countershaft sprocket that can't handle sustained power transfer or shed debris effectively, you're bleeding performance and risking catastrophic failure mid-race. The SUPERSPROX...12121344- SKU:
- 12121344
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$24.95
