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 Dual Sprocket MSE - Black - 50-Tooth 1210-897-50-10X
MOOSE RACING
$69.95A rear sprocket needs to handle constant torque cycles without compromising your power delivery—which is why the MOOSE RACING Dual Sprocket MSE delivers the weight savings of aluminum with the durability of steel. The hybrid construction keeps your...12101520- SKU:
- 12101520
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STYLE:
- DUAL
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
$69.95 -
MOOSE RACING Clutch Springs MHDS81-6
MOOSE RACING
$16.95OEM clutch springs wear out, lose tension, and degrade your lever feel over time—leaving you with a mushy, unpredictable engagement that compromises control and throttle response. The MOOSE RACING MHDS81-6 replaces that tired performance with...FHDS816- SKU:
- FHDS816
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- SET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING SET
$16.95 -
MOOSE RACING Rebuild Kit - Slave Cylinder - Kawasaki 18-6016
MOOSE RACING
$39.95A leaking slave cylinder compromises clutch engagement and creates safety hazards on track or street. This MOOSE RACING rebuild kit supplies every seal, gasket, and fastener needed to restore hydraulic integrity without replacing the entire assembly...09500917- SKU:
- 09500917
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BASE FINISH:
- RAW
- COLOR/FINISH:
- RAW
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- SLAVE CYLINDER
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 23801-428-000
PARTS UNLIMITED
$14.79A worn or damaged countershaft sprocket directly impacts your engine's power delivery and overall drivetrain efficiency. This OEM-spec replacement restores precise engagement with your chain, eliminating slack and ensuring consistent performance lap...K222552- SKU:
- K222552
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- TOOTH COUNT:
- 14
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$14.79Qty in Cart: 0Quantity:Price:$14.79Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 15-Tooth 23801-436-000
PARTS UNLIMITED
$7.37A worn or damaged countershaft sprocket compromises your entire drivetrain's efficiency and acceleration response. This OEM-spec replacement restores factory performance and reliability without requiring any modifications to your existing setup...K222553- SKU:
- K222553
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- CHAIN SIZE:
- 428
- MATERIAL:
- STEEL
- UNITS:
- EACH
- COLOR/FINISH:
- RAW
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 15
$7.37Qty in Cart: 0Quantity:Price:$7.37Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 23801-446-770
PARTS UNLIMITED
$13.73A worn or damaged countershaft sprocket compromises power delivery and creates accelerated wear across your entire drivetrain. This OEM-spec replacement restores precise chain engagement and ensures consistent performance lap after lap. Whether you're...K222565- SKU:
- K222565
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
$13.73Qty in Cart: 0Quantity:Price:$13.73Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 15-Tooth 13144-002
PARTS UNLIMITED
$7.37A worn or damaged countershaft sprocket directly impacts your bike's acceleration, chain wear, and overall drivetrain efficiency. The PARTS UNLIMITED 15-Tooth Countershaft Sprocket delivers OEM-spec performance at a fraction of the cost of genuine parts,...K222727- SKU:
- K222727
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 428
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- COLOR/FINISH:
- RAW
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 15
$7.37 -
PARTS UNLIMITED Countershaft Sprocket - 12-Tooth 13144-1023-12T
PARTS UNLIMITED
$6.31A worn or damaged countershaft sprocket directly impacts your engine's power delivery and overall drivetrain efficiency. This OEM-spec replacement restores precise gear engagement and eliminates the slack that develops over time, ensuring crisp...K222760- SKU:
- K222760
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 12
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
$6.31Qty in Cart: 0Quantity:Price:$6.31Subtotal: -
PARTS UNLIMITED Rear Suzuki Sprocket - 520 - 46 Tooth 64511-14220
PARTS UNLIMITED
$36.67A worn or damaged rear sprocket directly impacts your bike's power delivery, acceleration, and overall drivetrain efficiency. The PARTS UNLIMITED 46-tooth rear sprocket is manufactured to OEM specifications using hardened steel, ensuring the same...K223801S- SKU:
- K223801S
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
$36.67Qty in Cart: 0Quantity:Price:$36.67Subtotal: -
PARTS UNLIMITED Rear Suzuki Sprocket - 520 - 42 Tooth 64511-14A00
PARTS UNLIMITED
$35.65A worn or damaged sprocket directly impacts chain engagement, throttle response, and overall drivetrain efficiency. This OEM-specification rear sprocket restores precise tooth geometry and spline fit, ensuring reliable power delivery and extending chain...K223802Z- SKU:
- K223802Z
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 42
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$35.65Qty in Cart: 0Quantity:Price:$35.65Subtotal: -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 42 Tooth 41201KL4-671-42
PARTS UNLIMITED
$37.05A worn or damaged rear sprocket compromises your bike's acceleration, fuel efficiency, and overall drivetrain integrity. The PARTS UNLIMITED 42-tooth rear sprocket restores OEM performance with precision-machined teeth and hardened steel construction...K223505Z- SKU:
- K223505Z
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- COLOR/FINISH:
- NATURAL
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 42
- UNITS:
- EACH
$37.05Qty in Cart: 0Quantity:Price:$37.05Subtotal: -
MOOSE RACING Kickstarter 80-0225-00-60
MOOSE RACING
$184.79A reliable kickstarter bracket is foundational to any engine build—neglect it, and you're risking stripped threads, misalignment, and premature wear on your starter motor. The MOOSE RACING Kickstarter 80-0225-00-60 delivers OEM-equivalent construction...11120114- SKU:
- 11120114
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- KICKSTARTER
- UNITS:
- EACH
- MATERIAL:
- 6061 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
$184.79 -
MOOSE RACING Aluminum Chain Guide - Honda 01-018CG
MOOSE RACING
$53.95Stock chain guides crack and bend under the abuse of aggressive riding, leaving you stranded or facing costly engine damage. The MOOSE RACING Aluminum Chain Guide replaces that weak link with aircraft-grade aluminum construction that absorbs hard impacts...12310427- SKU:
- 12310427
- Availability:
- Ships Same Business Day
- Weight:
- 0.84 LBS
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- SNOW
- MATERIAL:
- AIRCRAFT ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE CHAIN
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$53.95Qty in Cart: 0Quantity:Price:$53.95Subtotal: -
MOOSE RACING Aluminum Chain Guide - Kawasaki/Suzuki 01-019CG
MOOSE RACING
$53.95Your stock chain guide won't survive sustained off-road abuse or aggressive trail riding. This MOOSE RACING aluminum guide replaces that fragile plastic with aircraft-grade durability, protecting your drivetrain from impacts with logs, rocks, and roots...12310428- SKU:
- 12310428
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- MATERIAL:
- AIRCRAFT ALUMINUM
- TYPE:
- DRIVE CHAIN
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- OFF-ROAD
$53.95Qty in Cart: 0Quantity:Price:$53.95Subtotal: -
MOOSE RACING Clutch Basket M316
MOOSE RACING
$257.95A worn or damaged clutch basket compromises power delivery and creates unpredictable engagement—compromising both performance and reliability on track or trail. The MOOSE RACING Clutch Basket M316 delivers consistent clutch feel and durability through...11321375- SKU:
- 11321375
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- CLUTCH BASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$257.95Qty in Cart: 0Quantity:Price:$257.95Subtotal: -
MOOSE RACING Clutch Basket M068
MOOSE RACING
$185.95Stock clutch baskets generate excess heat and wear prematurely under racing conditions—compromising shift quality and reliability when you need it most. The MOOSE RACING M068 solves this with precision-machined billet construction and an advanced design...11320032- SKU:
- 11320032
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- MATERIAL:
- 6061 AIRCRAFT-GRADE ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- CLUTCH BASKET
- COLOR/FINISH:
- ANODIZED
$185.95Qty in Cart: 0Quantity:Price:$185.95Subtotal: -
MOOSE RACING Clutch Basket M069
MOOSE RACING
$212.95Stock clutch baskets wear quickly under racing conditions, leading to slippage, inconsistent engagement, and premature failure. The MOOSE RACING M069 addresses these issues with precision engineering and superior materials, delivering improved heat...11320033- SKU:
- 11320033
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MATERIAL:
- 6061 AIRCRAFT-GRADE ALUMINUM ALLOY
- COLOR/FINISH:
- ANODIZED
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CLUTCH BASKET
- UNITS:
- EACH
$212.95Qty in Cart: 0Quantity:Price:$212.95Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 16-Tooth 214-17461-60
PARTS UNLIMITED
$13.73A worn or damaged countershaft sprocket directly impacts your power delivery and throttle response. The PARTS UNLIMITED 16-Tooth Countershaft Sprocket restores precise engagement with your chain drive, ensuring consistent acceleration and reliable...K222627- SKU:
- K222627
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 16
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
$13.73 -
MOOSE RACING 428 RXP Pro-MX Chain - Gold - 130 Links M575-00-130
MOOSE RACING
$45.95Mini-racing demands a chain engineered to withstand sustained high RPM and aggressive throttle inputs without sacrificing reliability. The MOOSE RACING 428 RXP Pro-MX delivers the tensile strength and corrosion resistance required for competitive...M57500130- SKU:
- M57500130
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 125 CC
- NUMBER OF LINKS:
- 130
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 5071 LB
- TENSILE STRENGTH METRIC:
- 22.6 KN
- CHAIN TYPE:
- 428 RXP
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MODEL:
- RXP SERIES
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- SEAL TYPE:
- NON-SEAL
$45.95Qty in Cart: 0Quantity:Price:$45.95Subtotal: -
VORTEX Aluminum Sprocket - Silver - Rear - 34-Tooth 206-34
VORTEX
$59.95A high-quality rear sprocket directly impacts your acceleration, top-end performance, and drivetrain reliability. The VORTEX 34-tooth aluminum sprocket delivers the precision engineering and durability required for consistent lap times and extended...12111712- SKU:
- 12111712
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- ALUMINUM
- TYPE:
- DRIVE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 420
- COLOR/FINISH:
- SILVER
- TOOTH COUNT:
- 34
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal:
