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
-
On Sale
Pro Circuit Clutch Springs Kawasaki KX85 2001-2025 CSK09085
PRO CIRCUIT
MSRP: $57.95Now: $52.16Was: $57.95Stock clutch springs on your KX85 will slip under sustained high-torque acceleration, costing you precious power transfer and throttle response. Pro Circuit's stiffer spring set delivers the positive...11312430- SKU:
- 11312430
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING SET
MSRP: $57.95Now: $52.16Was: $57.95 -
On Sale
Pro Circuit Clutch Springs Yamaha YZ250F 2019-2021 CSY19250-CS
PRO CIRCUIT
MSRP: $83.95Now: $75.56Was: $83.95Stock clutch springs wear and soften over time, causing slipping, inconsistent engagement, and lost power delivery—especially critical in competitive riding where milliseconds matter. Pro Circuit's...11313380- SKU:
- 11313380
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING SET
- UNITS:
- SET
MSRP: $83.95Now: $75.56Was: $83.95 -
On Sale
Pro Circuit Axle Blocks Honda CRF250R 2004-2008 Red HAB00
PRO CIRCUIT
MSRP: $59.95Now: $53.96Was: $59.95Rear wheel alignment directly impacts your CRF250R's handling precision and chain longevity—two factors that separate smooth, predictable rides from costly drivetrain wear. Pro Circuit's billet...HAB00- SKU:
- HAB00
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- AXLE BLOCK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
MSRP: $59.95Now: $53.96Was: $59.95 -
On Sale
Pro Circuit Axle Blocks Brown KX125 250 250F 450F RM-Z250 KAB03
PRO CIRCUIT
MSRP: $59.95Now: $53.96Was: $59.95Proper rear wheel alignment is non-negotiable for consistent handling and chain longevity, and Pro Circuit Axle Blocks deliver precision engineering that keeps your suspension geometry dialed in...12310268- SKU:
- 12310268
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- COLOR/FINISH:
- BROWN
- PRODUCT NAME:
- AXLE BLOCK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
MSRP: $59.95Now: $53.96Was: $59.95 -
On Sale
Pro Circuit Axle Blocks KX250F 2017-2025 KAB17
PRO CIRCUIT
MSRP: $62.95Now: $56.66Was: $62.95Misaligned axle blocks accelerate wear on your drivetrain and compromise handling at speed—two problems that directly cost you race time and money. Pro Circuit's billet aluminum blocks maintain...12310835- SKU:
- 12310835
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- HARD ANODIZED
- UNITS:
- PAIR
- PRODUCT NAME:
- AXLE BLOCK
- MATERIAL:
- BILLET ALUMINUM
MSRP: $62.95Now: $56.66Was: $62.95 -
PARTS UNLIMITED 520 - Drive Chain - 110 Links T520110
PARTS UNLIMITED
$29.95A reliable 520-pitch chain is fundamental to any high-performance drivetrain—it needs to deliver consistent power transfer without sacrificing durability or breaking your budget. The Parts Unlimited...T520110- SKU:
- T520110
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- CHAIN SIZE:
- 520
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- NUMBER OF LINKS:
- 110
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 29.3 KN
- UNITS:
- EACH
$29.95 -
PARTS UNLIMITED 520 - Drive Chain - 112 Links T520112
PARTS UNLIMITED
$42.95A reliable 520-pitch chain is essential for consistent power delivery and minimal drivetrain slack, whether you're running a sport bike, go-kart, or small-displacement race engine. This precut...T520112- SKU:
- T520112
- Availability:
- Ships Same Business Day
- Weight:
- 3.63 LBS
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
- TENSILE STRENGTH METRIC:
- 29.3 KN
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 112
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SEAL TYPE:
- NON-SEAL
$42.95 -
PARTS UNLIMITED 520 - Drive Chain - 116 Links T520116
PARTS UNLIMITED
$31.95A reliable 520 chain is fundamental to any high-performance drivetrain—it needs to transmit power consistently without sacrificing longevity or requiring constant maintenance. The Parts Unlimited...T520116- SKU:
- T520116
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 29.3 KN
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- RIDING STYLE:
- UTV
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 116
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
$31.95Qty in Cart: 0Quantity:Price:$31.95Subtotal: -
PARTS UNLIMITED 520H - Drive Chain - 112 Links T520H112
PARTS UNLIMITED
$42.95A 520H drive chain is the workhorse backbone of your drivetrain—it transmits engine power directly to the rear wheel, and a worn or undersized chain will rob you of performance and reliability. This...T520H112- SKU:
- T520H112
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- RIDING STYLE:
- ATV
- TENSILE STRENGTH IMPERIAL:
- 7450 LB
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 33.1 KN
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 H
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 112
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SEAL TYPE:
- NON-SEAL
$42.95 -
PARTS UNLIMITED 420 - Drive Chain - 132 Links T420132
PARTS UNLIMITED
$19.95A reliable drive chain is foundational to any powersports build—whether you're running a go-kart, mini bike, or small-displacement engine. This 420-pitch chain delivers consistent power transfer...T420132- SKU:
- T420132
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SEAL TYPE:
- NON-SEAL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- TENSILE STRENGTH IMPERIAL:
- 3950 LB
- TENSILE STRENGTH METRIC:
- 17.5 KN
- CHAIN SIZE:
- 420
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 80 CC
- NUMBER OF LINKS:
- 132
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 80 CC
$19.95 -
PARTS UNLIMITED 428 - Drive Chain - 124 Links T428124
PARTS UNLIMITED
$19.95A reliable 428 chain is fundamental to any drivetrain requiring consistent power delivery and durability. Whether you're building a go-kart, mini bike, or running a 428 sprocket setup on your...T428124- SKU:
- T428124
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 4050 LB
- TENSILE STRENGTH METRIC:
- 18 KN
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 124
- RIDING STYLE:
- UTV
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 125 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- UNITS:
- EACH
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 125 CC
$19.95 -
PARTS UNLIMITED 428H - Drive Chain - 120 Links T428H120
PARTS UNLIMITED
$24.95A reliable 428H chain is fundamental to any mid-range engine build—whether you're running a small-block cruiser or a pit bike setup. This Parts Unlimited offering delivers OEM-quality construction at...T428H120- SKU:
- T428H120
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- RIDING STYLE:
- UTV
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 200 CC
- CHAIN SIZE:
- 428
- CHAIN TYPE:
- 428 H
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 200 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- NUMBER OF LINKS:
- 120
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 4050 LB
- TENSILE STRENGTH METRIC:
- 18 KN
$24.95 -
PARTS UNLIMITED Single Bearing - 5/8 x 1-3/8 499502H
PARTS UNLIMITED
$6.55Sealed bearings are critical to reliable performance in high-speed applications, protecting against contamination and extending component life. The PARTS UNLIMITED 5/8 x 1-3/8 bearing delivers...499502H- SKU:
- 499502H
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- INSIDE DIAMETER:
- 15,9 MM (5/8')
- OUTSIDE DIAMETER:
- 34,9 MM (1-3/8')
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- THICKNESS:
- 11 MM
- TYPE:
- DOUBLE SEAL
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- SNOW
- STYLE:
- SMOOTH
$6.55 -
MOOSE RACING Clutch Kit M90-229
MOOSE RACING
$112.95A quality clutch kit is fundamental to reliable power transfer and consistent engagement, whether you're logging track miles or pushing your build to the next level. The MOOSE RACING Clutch Kit...11312453- SKU:
- 11312453
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- FEATURES:
- INCLUDES GASKET
- PRODUCT NAME:
- CLUTCH KIT
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES SPRINGS
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- COMPLETE
- UNITS:
- KIT
$112.95Qty in Cart: 0Quantity:Price:$112.95Subtotal: -
MOOSE RACING Clutch Springs MHDS27-6
MOOSE RACING
$16.95A worn or weak clutch spring forces you to work harder at the lever and compromises your power delivery when it matters most. MOOSE RACING's precision-wound clutch springs restore crisp engagement...11310517- SKU:
- 11310517
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- SPRING SET
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
- UNITS:
- SET
$16.95 -
MOOSE RACING Clutch Friction Plates M70-5700-8
MOOSE RACING
$130.95Clutch fade under hard acceleration is a performance killer—and these MOOSE RACING friction plates eliminate it. Engineered with premium heat-resistant friction material, the M70-5700-8 delivers...11310082- SKU:
- 11310082
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FRICTION PLATE SET
- UNITS:
- SET
$130.95 -
MOOSE RACING Clutch Friction Plates M70-5507-9
MOOSE RACING
$141.95Clutch fade under sustained track conditions can cost you critical lap time and reliability. The MOOSE RACING M70-5507-9 friction plates deliver consistent, predictable power transfer lap after lap...11310089- SKU:
- 11310089
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- FRICTION PLATE SET
- UNITS:
- SET
$141.95 -
MOOSE RACING Clutch Friction Plates M70-5508-7
MOOSE RACING
$128.95Clutch fade during high-rpm shifts kills performance and costs you consistency on the track or the street. The MOOSE RACING M70-5508-7 friction plates eliminate that problem with heat-resistant...11310090- SKU:
- 11310090
- Availability:
- Ships Same Business Day
- Weight:
- 0.78 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- FRICTION PLATE SET
- UNITS:
- SET
$128.95 -
MOOSE RACING Clutch Springs MHDS115-6
MOOSE RACING
$16.95A worn or weak OEM clutch spring compromises both modulation and durability, forcing you to work harder at the lever while sacrificing engagement consistency. MOOSE Racing's precision-wound clutch...11310093- SKU:
- 11310093
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- SPRING SET
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
$16.95Qty in Cart: 0Quantity:Price:$16.95Subtotal: -
MOOSE RACING Clutch Springs MHDS116-6
MOOSE RACING
$16.95A worn or weak clutch spring directly impacts your lever feel and engagement consistency—two factors that separate precise control from sloppy, unpredictable shifts. MOOSE Racing clutch springs...11310097- SKU:
- 11310097
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SPRING MATERIAL:
- CHROME SILICON
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING SET
- UNITS:
- SET
$16.95
