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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Rekluse Core Manual TorqDrive Clutch Kit 2015-2019 Yamaha WR250F YZ250F FX RMS-7178
REKLUSE
$1,139.00Stock clutches in the WR250F and YZ250F sacrifice engagement precision for simplicity, leaving power on the table and forcing you to work harder on the lever. The Rekluse Core Manual TorqDrive addresses this with additional friction capacity and...11300390- SKU:
- 11300390
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- MODEL:
- CORE MANUAL TORQ-DRIVE
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CLUTCH KIT
$1,139.00 -
Renthal 520 R1 Works Chain 120 Links C128
RENTHAL
$145.95If you're running a 520 chain setup in competitive racing or demanding off-road conditions, power loss through the drivetrain is the enemy. The Renthal 520 R1 Works Chain delivers the tensile strength and low friction you need to transfer maximum...R1520120- SKU:
- R1520120
- Availability:
- Ships Same Business Day
- Weight:
- 4.19 LBS
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MODEL:
- R1
- NUMBER OF LINKS:
- 120
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- STREET
- TENSILE STRENGTH METRIC:
- 34 KN
- CHAIN TYPE:
- 520 R1
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH IMPERIAL:
- 7644 LB
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 450 CC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SEAL TYPE:
- NON-SEAL
$145.95Qty in Cart: 0Quantity:Price:$145.95Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 23800-168-000
PARTS UNLIMITED
$8.11A worn or damaged countershaft sprocket directly impacts your bike's power delivery and overall drivetrain reliability. This OEM-spec replacement ensures precise engagement with your chain while maintaining the exact gear ratios your engine was tuned for...K222588- SKU:
- K222588
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 14
$8.11 -
PARTS UNLIMITED 520H - Drive Chain - 120 Links T520H120
PARTS UNLIMITED
$44.95A reliable 520H chain is the backbone of any high-performance drivetrain, and this Parts Unlimited option delivers OEM-grade durability without the premium price tag. Whether you're running a sport bike, go-kart, or small-displacement racing engine, this...T520H120- SKU:
- T520H120
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 H
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH METRIC:
- 33.1 KN
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- NUMBER OF LINKS:
- 120
- TENSILE STRENGTH IMPERIAL:
- 7450 LB
- UNITS:
- EACH
$44.95 -
Hinson Racing Inner Hub with Pressure Plate for Yamaha YZ85 2015-2021 H381
HINSON RACING
$499.99If you're running a YZ85 in competitive or high-mileage conditions, clutch wear and heat buildup will cost you performance and reliability. The Hinson Racing H381 inner hub with pressure plate delivers measurable improvements in engagement precision and...11320186- SKU:
- 11320186
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
$499.99Qty in Cart: 0Quantity:Price:$499.99Subtotal: -
Hinson Racing Clutch Kit Yamaha YZ85 2002-2025 FSC159-7-001
HINSON RACING
$199.99If you're running a YZ85 in competitive or recreational riding, clutch performance directly impacts your ability to modulate power delivery and maintain control through technical sections. The Hinson Racing Clutch Kit is engineered to deliver consistent...11312463- SKU:
- 11312463
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
$199.99 -
Hinson Racing Clutch Kit Suzuki RM-Z450 2005-2022 FSC230-8-001
HINSON RACING
$199.99A worn or mismatched clutch kit robs your RM-Z450 of crisp engagement and risks catastrophic failure under racing loads. This Hinson Racing Clutch Kit delivers the precision tolerances and heat-management engineering needed to sustain consistent power...11310857- SKU:
- 11310857
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
$199.99 -
Hinson Racing Billetproof Clutch Kit for 2021-2026 Kawasaki KX250 HC663-2101
HINSON RACING
$1,119.99The Hinson Racing Billetproof Clutch Kit transforms power delivery in your 2021-2026 Kawasaki KX250 by eliminating spongy engagement and maximizing bite under hard acceleration. Whether you're pushing the pace at the track or demanding quick, consistent...11300628- SKU:
- 11300628
- Availability:
- Ships Same Business Day
- Weight:
- 6.80 LBS
$1,119.99Qty in Cart: 0Quantity:Price:$1,119.99Subtotal: -
Hinson Racing Clutch Kit for 1987-1999 Honda CR125R FSC094-7-001
HINSON RACING
$199.99The clutch is where power meets control—especially on a 2-stroke where engagement and disengagement speed directly impact your lap times. This Hinson Racing Clutch Kit delivers precision-engineered friction plates and steel plates optimized for the...11312462- SKU:
- 11312462
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
$199.99Qty in Cart: 0Quantity:Price:$199.99Subtotal: -
HOT RODS Transmission Bearing Kit TBK0118
HOT RODS
$151.95Whether you're rebuilding a transmission from the ground up or performing a complete engine case overhaul, bearing failure is not an option. The HOT RODS Transmission Bearing Kit TBK0118 supplies all the critical bearings and components your primary and...11060227- SKU:
- 11060227
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
$151.95 -
HOT RODS Transmission Bearing Kit TBK0041
HOT RODS
$122.95Whether you're rebuilding a transmission from the ground up or performing a complete engine case restoration, bearing failure isn't an option. The HOT RODS Transmission Bearing Kit TBK0041 delivers OEM-quality bearings for critical shaft and drum...11060126- SKU:
- 11060126
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
$122.95 -
JT SPROCKETS Steel Rear Sprocket - Graphite - 48 Tooth JTX251.48GR
JT SPROCKETS
$51.80A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets Steel Rear Sprocket delivers precision engineering with computer-optimized tooth geometry and heat-treated...12102601- SKU:
- 12102601
- Availability:
- Ships Same Business Day
- Weight:
- 1.53 LBS
$51.80Qty in Cart: 0Quantity:Price:$51.80Subtotal: -
JT SPROCKETS Steel Rear Sprocket - Graphite - 49 Tooth JTX460.49GR
JT SPROCKETS
$51.80A properly sized rear sprocket is critical for achieving the right power delivery characteristics and top-end performance on your motorcycle. The JT Sprockets 49-tooth steel rear sprocket delivers the durability and precision engineering needed for...12102606- SKU:
- 12102606
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
$51.80 -
JT SPROCKETS Steel Rear Sprocket - Graphite - 50 Tooth JTX460.50GR
JT SPROCKETS
$51.80A worn or undersized rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 50-tooth steel rear sprocket delivers the durability and precision needed for consistent performance whether you're on...12102607- SKU:
- 12102607
- Availability:
- Ships Same Business Day
- Weight:
- 1.58 LBS
$51.80 -
JT SPROCKETS Steel Rear Sprocket - Graphite - 48 Tooth JTX897.48GR
JT SPROCKETS
$51.80The JT Sprockets Steel Rear Sprocket delivers the durability and precision required for consistent performance across track days, street riding, and competition. A heat-treated steel construction with graphite coating resists wear and corrosion while...12102612- SKU:
- 12102612
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$51.80 -
JT SPROCKETS Steel Rear Sprocket - Graphite - 49 Tooth JTX897.49GR
JT SPROCKETS
$51.80A worn or undersized rear sprocket robs your bike of acceleration and top-end performance. The JT Sprockets Steel Rear Sprocket delivers the durability and precision gear ratio you need to maximize power transfer and extend drivetrain life, all without...12102613- SKU:
- 12102613
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
$51.80Qty in Cart: 0Quantity:Price:$51.80Subtotal: -
JT SPROCKETS Steel Rear Sprocket - Graphite - 50 Tooth JTX897.50GR
JT SPROCKETS
$51.80A worn or undersized rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency. The JT Sprockets 50-tooth steel rear sprocket delivers the durability and precision needed for consistent power transfer, whether you're...12102614- SKU:
- 12102614
- Availability:
- Ships Same Business Day
- Weight:
- 1.66 LBS
$51.80Qty in Cart: 0Quantity:Price:$51.80Subtotal: -
JT SPROCKETS Steel Rear Sprocket - Graphite - 51 Tooth JTX897.51GR
JT SPROCKETS
$51.80A properly sized rear sprocket is critical to maximizing your bike's acceleration, top speed, and engine efficiency—choose the wrong tooth count and you'll sacrifice performance in one direction or the other. The JT Sprockets 51-tooth rear sprocket...12102615- SKU:
- 12102615
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$51.80 -
JT SPROCKETS Sprocket - Rear - Kawasaki/Suzuki - 51-Tooth JTR461.51
JT SPROCKETS
$24.33A rear sprocket is one of the most direct ways to dial in your bike's acceleration, top speed, and engine feel—and choosing the right tooth count makes all the difference. JT's 51-tooth rear sprocket delivers the engineering precision you need for...JTR46151- SKU:
- JTR46151
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
$24.33 -
JT SPROCKETS Rear Sprocket - Beta/Honda - Red - 51 Tooth JTA210.51RED
JT SPROCKETS
$41.43A quality rear sprocket is fundamental to your bike's acceleration, top-end performance, and drivetrain longevity. The JT Sprockets 51-tooth rear sprocket delivers the precision engineering and durability that professional riders and serious enthusiasts...12112572- SKU:
- 12112572
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$41.43Qty in Cart: 0Quantity:Price:$41.43Subtotal:
