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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JT SPROCKETS Rear Sprocket - Yamaha - Blue - 52 Tooth JTA251.52BLU
JT SPROCKETS
$42.53A worn or inadequate rear sprocket directly compromises acceleration, top-end performance, and chain longevity on your Yamaha. The JT Sprockets 52-tooth rear sprocket delivers computer-optimized strength without excess weight, ensuring reliable power...12112581- SKU:
- 12112581
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$42.53 -
JT SPROCKETS Rear Sprocket - Black - 51 Tooth - Kawasaki JTA460.51BLK
JT SPROCKETS
$41.43A worn or damaged rear sprocket directly compromises acceleration, top-end performance, and overall drivetrain efficiency on your Kawasaki. The JT Sprockets 51-tooth rear sprocket is engineered for precise power delivery and chain compatibility, giving...12112583- SKU:
- 12112583
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$41.43 -
JT SPROCKETS Rear Sprocket - Black - 52 Tooth - Kawasaki JTA460.52BLK
JT SPROCKETS
$42.53A worn or inadequate rear sprocket directly impacts your Kawasaki's acceleration, top-end speed, and overall drivetrain efficiency. The JT SPROCKETS 52-tooth rear sprocket is engineered to deliver the strength and precision needed for reliable...12112584- SKU:
- 12112584
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$42.53 -
JT SPROCKETS Rear Sprocket - Black - 51 Tooth - Kawasaki JTA461.51BLK
JT SPROCKETS
$33.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end performance, and chain longevity. The JT Sprockets 51-tooth rear sprocket delivers the strength and precision your Kawasaki demands, engineered to handle sustained...12112585- SKU:
- 12112585
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$33.95 -
JT SPROCKETS Rear Sprocket - Kawasaki - Black - 51 Tooth JTA462.51BLK
JT SPROCKETS
$37.70A worn or undersized rear sprocket robs your Kawasaki of acceleration and top-end performance. The JT Sprockets 51-tooth rear sprocket is engineered to deliver the optimal balance of responsive power delivery and durability, using computer-optimized...12112586- SKU:
- 12112586
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
$37.70 -
JT SPROCKETS Rear Sprocket - Black - 40 Tooth - Yamaha JTA853.40BLK
JT SPROCKETS
$32.20A properly sized rear sprocket is critical for maximizing your Yamaha's acceleration, top-end performance, and overall powerbandcharacteristics. The JT SPROCKETS 40-tooth rear sprocket delivers precision engineering with RaceLite's proven durability,...12112602- SKU:
- 12112602
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$32.20 -
JT SPROCKETS Rear Sprocket - Black - 44 Tooth - Yamaha JTA853.44BLK
JT SPROCKETS
$34.03Sprocket wear directly impacts acceleration response and top-end performance—a worn or mismatched rear sprocket creates power loss and erratic throttle feel. The JT RaceLite 44-tooth sprocket delivers precise gear ratios with zero runout, engineered from...12112603- SKU:
- 12112603
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$34.03 -
JT SPROCKETS Rear Sprocket - Black - 46 Tooth - Yamaha JTA853.46BLK
JT SPROCKETS
$36.28Your sprocket is the direct link between your chain and wheel—wear or damage here directly kills acceleration and top-end performance. The JT Sprockets 46-tooth rear sprocket delivers the durability and precision you need for consistent power transfer,...12112604- SKU:
- 12112604
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$36.28 -
JT SPROCKETS Rear Sprocket - Black - 50 Tooth - Yamaha JTA853.50BLK
JT SPROCKETS
$40.35A worn or mismatched rear sprocket directly impacts your acceleration response, top-end speed, and overall drivetrain efficiency. The JT Sprockets 50-tooth rear sprocket delivers the precision engineering and durability required for consistent...12112606- SKU:
- 12112606
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$40.35Qty in Cart: 0Quantity:Price:$40.35Subtotal: -
JT SPROCKETS Rear Sprocket - Black - 51 Tooth - Yamaha JTA853.51BLK
JT SPROCKETS
$41.43A quality rear sprocket directly impacts your acceleration, top speed, and overall drivetrain efficiency—making it one of the most critical tuning variables on your bike. The JT SPROCKETS 51-tooth rear sprocket gives you the gearing ratio you need to...12112607- SKU:
- 12112607
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$41.43Qty in Cart: 0Quantity:Price:$41.43Subtotal: -
JT SPROCKETS Rear Sprocket - Black - 48 Tooth - Husqvarna/KTM JTA894.48BLK
JT SPROCKETS
$30.83Optimizing your sprocket directly impacts power delivery, acceleration, and drivetrain longevity—making this one of the highest-ROI upgrades for your Husqvarna or KTM. JT's 48-tooth rear sprocket is engineered for riders who demand precise gear ratios...12112615- SKU:
- 12112615
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$30.83 -
JT SPROCKETS Rear Sprocket - Black - 47 Tooth - KTM JTA895.47BLK
JT SPROCKETS
$33.63A worn or mismatched rear sprocket directly impacts acceleration, top speed, and overall drivetrain efficiency—especially critical on KTM machines where precision engineering is non-negotiable. The JT Sprockets 47-tooth rear sprocket delivers...12112620- SKU:
- 12112620
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$33.63 -
JT SPROCKETS Rear Sprocket - Orange - 46 Tooth - KTM JTA895.46ORG
JT SPROCKETS
$32.70A properly sized rear sprocket is critical for optimizing your KTM's power delivery, acceleration, and top-end performance. The JT Sprockets 46-tooth rear sprocket delivers the durability and precision engineering that racers and serious riders depend...12112622- SKU:
- 12112622
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
$32.70 -
JT SPROCKETS Rear Sprocket - Orange - 47 Tooth - KTM JTA895.47ORG
JT SPROCKETS
$33.63A worn or damaged rear sprocket directly impacts acceleration, top-end performance, and chain longevity—making a quality replacement essential for any serious KTM rider. JT Sprockets delivers computer-optimized designs that maximize strength while...12112623- SKU:
- 12112623
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$33.63Qty in Cart: 0Quantity:Price:$33.63Subtotal: -
JT SPROCKETS Rear Sprocket - Orange - 48 Tooth - KTM JTA895.48ORG
JT SPROCKETS
$34.03A properly matched rear sprocket is fundamental to optimizing your KTM's acceleration, top-end speed, and overall drivetrain efficiency. The JT 48-tooth sprocket delivers computer-optimized tooth geometry and premium heat treatment for reliable power...12112624- SKU:
- 12112624
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$34.03 -
JT SPROCKETS Rear Sprocket - Orange - 50 Tooth - KTM JTA895.50ORG
JT SPROCKETS
$36.75A properly matched rear sprocket is essential for optimizing your KTM's acceleration, top-end performance, and overall drivetrain efficiency. The JT Sprockets 50-tooth rear sprocket delivers the strength-to-weight ratio serious riders demand, engineered...12112625- SKU:
- 12112625
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$36.75 -
JT SPROCKETS Rear Sprocket - Black - 48 Tooth - Yamaha JTA251.48BLK
JT SPROCKETS
$37.38A worn or mismatched rear sprocket kills acceleration and efficiency—JT Sprockets delivers precision-engineered durability that restores your bike's power delivery and chain longevity. This 48-tooth sprocket is computer-designed to balance strength and...12112647- SKU:
- 12112647
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$37.38Qty in Cart: 0Quantity:Price:$37.38Subtotal: -
JT SPROCKETS Rear Sprocket - Blue - 48 Tooth - Yamaha JTA251.48BLU
JT SPROCKETS
$37.38A worn or mismatched rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency on your Yamaha. The JT Sprockets 48-tooth rear sprocket delivers the precision engineering and durability required for consistent...12112577- SKU:
- 12112577
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$37.38Qty in Cart: 0Quantity:Price:$37.38Subtotal: -
JT SPROCKETS Rear Sprocket - Yamaha - Blue - 49 Tooth JTA251.49BLU
JT SPROCKETS
$38.88A worn or incorrect sprocket directly impacts your Yamaha's acceleration, top-end speed, and overall drivetrain efficiency. This JT Sprockets rear sprocket is computer-designed to deliver maximum strength without unnecessary weight, ensuring responsive...12112578- SKU:
- 12112578
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
$38.88 -
JT SPROCKETS Rear Sprocket - Blue - 50 Tooth - Yamaha JTA251.50BLU
JT SPROCKETS
$40.35A worn or damaged rear sprocket directly impacts your bike's acceleration, top speed, and overall drivetrain efficiency. JT Sprockets engineers this 50-tooth rear sprocket to deliver the strength and precision you need for aggressive riding or racing,...12112579- SKU:
- 12112579
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$40.35
