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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On Sale
BARNETT Clutch Basket 321-35-01003
BARNETT
MSRP: $311.79Now: $280.61Was: $311.79Baskets are CNC-machined from 2024 T-3 billet aluminum and plates from 6061 T-6 billet aluminum for increased durability and extended clutch life, Baskets utilize stainless steel drive inserts where the clutch plate tabs make contact with the basket;...11310127- SKU:
- 11310127
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- 2024 T-3 BILLET ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH BASKET
MSRP: $311.79Now: $280.61Was: $311.79Qty in Cart: 0Quantity:Price:MSRP: $311.79Now: $280.61Was: $311.79Subtotal: -
ACERBIS Complete Chain Guide Block - Yamaha - White 2410990002
ACERBIS
$79.95Two-piece design for easy mounting without chain removal, Constructed of PA6 nylon for high-resistance to chain-wear and shock, Material will not bend in event of collision or contact with roost12310678- SKU:
- 12310678
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- BLOCK
- UNITS:
- EACH
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
Sunstar 13 Tooth Front Sprocket for 2002-2025 Yamaha YZ85 22613
SUNSTAR SPROCKETS
$20.95The Sunstar 13-tooth front sprocket is engineered for YZ85 riders who demand reliable power transfer and consistent acceleration without premature wear. Built from case-hardened chromoly steel with Parkerizing corrosion protection, this OEM-equivalent...22613X- SKU:
- 22613X
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
On Sale
ATHENA Transmission Belt S410000350001
ATHENA
MSRP: $20.95Now: $19.00Was: $20.95Performance-matched drive belts are specifically designed to handle the power supplied by Athena's big bore kits for scooters11420033- SKU:
- 11420033
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- FLAT-TOP
- STYLE:
- RIBBED
MSRP: $20.95Now: $19.00Was: $20.95 -
On Sale
ATHENA Transmission Belt - 18 x 9 x 737 S410000350017
ATHENA
MSRP: $20.95Now: $19.00Was: $20.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040073- SKU:
- 12040073
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- RIDING STYLE:
- STREET
- COG HEIGHT:
- 18 MM
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
MSRP: $20.95Now: $19.00Was: $20.95Qty in Cart: 0Quantity:Price:MSRP: $20.95Now: $19.00Was: $20.95Subtotal: -
On Sale
ATHENA Transmission Belt - 22.5 x 10.5 x 812 S410000350024
ATHENA
MSRP: $24.95Now: $22.00Was: $24.95Manufactured to exact length and tolerances as the OE belts, Constructed of the latest materials to meet or exceed OEM quality and performance, Minimize clutch slippage and wear12040074- SKU:
- 12040074
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- COG HEIGHT:
- 22,5 MM
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
MSRP: $24.95Now: $22.00Was: $24.95 -
On Sale
ATHENA Clutch Kit P400485110001
ATHENA
MSRP: $89.95Now: $81.00Was: $89.95State-of-the-art clutch kit allows for greater acceleration and engine torque than stock11300035- SKU:
- 11300035
- Availability:
- Ships Same Business Day
- Weight:
- 1.21 LBS
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $89.95Now: $81.00Was: $89.95 -
On Sale
BARNETT Drive Plate 401-45-063006
BARNETT
MSRP: $8.79Now: $7.91Was: $8.79Made in the U.S.A.KP616- SKU:
- KP616
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- DRIVE PLATE (STEEL PLATE)
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $8.79Now: $7.91Was: $8.79 -
On Sale
BARNETT Drive Plate 401-90-063015
BARNETT
MSRP: $8.79Now: $7.91Was: $8.79A drive plate is the critical interface between your engine and transmission, directly impacting power transfer efficiency and rotational balance. The BARNETT 401-90-063015 delivers precision-engineered durability with U.S.A. manufacturing standards,...YP1516- SKU:
- YP1516
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- DRIVE PLATE (STEEL PLATE)
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $8.79Now: $7.91Was: $8.79 -
On Sale
BARNETT Clutch Kit 303-90-20051
BARNETT
MSRP: $264.86Now: $238.37Was: $264.86A worn or failing clutch kit compromises your dirt digger's ability to transfer power efficiently, leading to slippage, poor engagement, and accelerated wear on other drivetrain components. The BARNETT Complete Clutch Kit delivers reliable power transfer...YPK51DCF- SKU:
- YPK51DCF
- Availability:
- Ships Same Business Day
- Weight:
- 2.38 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- MODEL:
- DIRT DIGGER
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
MSRP: $264.86Now: $238.37Was: $264.86 -
On Sale
BARNETT Clutch Kit 303-35-10009
BARNETT
MSRP: $208.53Now: $187.68Was: $208.53A quality clutch kit is fundamental to reliable power transfer in high-demand riding conditions. The BARNETT Clutch Kit 303-35-10009 delivers consistent engagement and durability through premium friction and steel plates engineered to handle aggressive...2012501- SKU:
- 2012501
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- DRIVE PLATE MATERIAL:
- STEEL
- MODEL:
- DIRT DIGGER
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
MSRP: $208.53Now: $187.68Was: $208.53 -
Sunstar Rear Sprocket 47T Suzuki GSX-R1000 2009-2025 2-547447
SUNSTAR SPROCKETS
$71.95The Sunstar 47T rear sprocket is engineered to maximize power delivery and chain contact without adding unnecessary weight to your GSX-R1000. Whether you're chasing lap times or refining your acceleration feel, this aerospace-grade aluminum sprocket...5242947- SKU:
- 5242947
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CHAIN SIZE:
- 428
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE
- COLOR/FINISH:
- WORKS/GOLD
- MATERIAL:
- 7075-T6 ALUMINUM
$71.95Qty in Cart: 0Quantity:Price:$71.95Subtotal: -
On Sale
EBC Clutch Kit CK1153
EBC
MSRP: $51.39Now: $48.82Was: $51.39Your bike's clutch is the critical link between engine power and wheel traction—and a worn or degraded clutch pack steals both. The EBC Clutch Kit CK1153 delivers friction plates engineered with cork-based material impregnated with aluminum particles,...11311837- SKU:
- 11311837
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- CK SERIES
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- FRICTION PLATE SET
MSRP: $51.39Now: $48.82Was: $51.39Qty in Cart: 0Quantity:Price:MSRP: $51.39Now: $48.82Was: $51.39Subtotal: -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD48045GLD
SUPERSPROX
MSRP: $10.95Now: $9.31Was: $10.95A stamped steel sprocket won't cut it if you're serious about chain wear, noise reduction, and long-term durability. The SUPERSPROX Edge Rear Sprocket Insert replaces worn or damaged inserts with precision-engineered replacements that restore proper...12102357- SKU:
- 12102357
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $10.95Now: $9.31Was: $10.95 -
On Sale
SUPERSPROX Edge Rear Sprocket Insert - Gold RACD48641GLD
SUPERSPROX
MSRP: $10.95Now: $9.31Was: $10.95A worn or damaged rear sprocket compromises your chain drive efficiency and introduces vibration that degrades handling and acceleration. The SUPERSPROX Edge Rear Sprocket Insert in gold delivers a precision-engineered replacement that restores optimal...12102358- SKU:
- 12102358
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- INSERT
- TYPE:
- EDGE REAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $10.95Now: $9.31Was: $10.95Qty in Cart: 0Quantity:Price:MSRP: $10.95Now: $9.31Was: $10.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-432-15-1
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95A worn or inadequate countershaft sprocket directly translates to power loss, accelerated chain wear, and compromised acceleration—especially critical in off-road racing where reliability defines winners. The SUPERSPROX 15-tooth CST-432-15-1 is...12121374- SKU:
- 12121374
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
MSRP: $24.95Now: $21.21Was: $24.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 12-Tooth CST-1323-12-1
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95A countershaft sprocket is the hardest-working component in your drivetrain, and inferior materials mean premature wear, power loss, and unexpected failures. The SUPERSPROX 12-Tooth CST-1323-12-1 is engineered with SCM-435 carbon-free steel and...12121324- SKU:
- 12121324
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 12
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
MSRP: $24.95Now: $21.21Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.21Was: $24.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 13-Tooth CST-1323-13-1
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95A worn or suboptimal countershaft sprocket costs you power transfer efficiency and chain longevity on every ride. The SUPERSPROX 13-Tooth Countershaft Sprocket delivers factory-spec durability and lightweight construction engineered for both high-rpm...12121325- SKU:
- 12121325
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
MSRP: $24.95Now: $21.21Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.21Was: $24.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 14-Tooth CST-1323-14-1
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95If you're running a countershaft sprocket that can't handle the demands of high-RPM acceleration or rough terrain, you're losing power and risking mid-race failure. The SUPERSPROX 14-Tooth Countershaft Sprocket is engineered with the same metallurgy and...12121326- SKU:
- 12121326
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
MSRP: $24.95Now: $21.21Was: $24.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 13-Tooth CST-1441-13-1
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95If you're running a countershaft sprocket that's holding you back with chain drag losses and premature wear, the SUPERSPROX 13-Tooth is engineered to deliver the durability and efficiency of factory racing components. The SCM-435 carbon-free steel...12121328- SKU:
- 12121328
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 13
- UNITS:
- EACH
MSRP: $24.95Now: $21.21Was: $24.95
