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!
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- Qty in Cart
- Quantity
- Price
- Subtotal
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MOOSE OFFROAD Steel Rear Sprocket - TM - 48 Tooth 1210-520TM-48ST
MOOSE OFFROAD
$29.95If you're running a TM and want measurable gains in acceleration without sacrificing top-end capability, gear selection is one of the easiest tuning levers you have. This 48-tooth rear sprocket delivers the engineering precision and material quality that...12102128- SKU:
- 12102128
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$29.95 -
MOOSE OFFROAD Steel Rear Sprocket - TM - 48 Tooth 1210-520TM-49ST
MOOSE OFFROAD
$29.95A worn or suboptimal rear sprocket directly impacts your TM's acceleration, top-end speed, and overall drivetrain efficiency. This MOOSE OFFROAD steel sprocket delivers the precision fit and lightweight construction needed to maximize chain engagement...12102129- SKU:
- 12102129
- Availability:
- Ships Same Business Day
- Weight:
- 2.07 LBS
$29.95 -
MOOSE OFFROAD Steel Rear Sprocket - TM - 50 Tooth 1210-520TM-50ST
MOOSE OFFROAD
$29.95A properly matched rear sprocket is critical for optimizing your dirt bike's acceleration, top-end speed, and overall power delivery. The MOOSE OFFROAD Steel Rear Sprocket delivers the durability and precision engineering required for aggressive trail...12102130- SKU:
- 12102130
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
MOOSE OFFROAD Steel Rear Sprocket - TM - 52 Tooth 1210-520TM-52ST
MOOSE OFFROAD
$29.95A properly sized rear sprocket is fundamental to optimizing your bike's power delivery and acceleration characteristics. This 52-tooth configuration strikes a balance between top-end speed and mid-range responsiveness, making it ideal for mixed terrain...12102132- SKU:
- 12102132
- Availability:
- Ships Same Business Day
- Weight:
- 2.23 LBS
$29.95 -
MOOSE OFFROAD Steel Rear Sprocket - Yamaha - 48 Tooth 1210-1134-48-ST
MOOSE OFFROAD
$29.95A properly matched rear sprocket is critical to extracting maximum torque and acceleration from your Yamaha's powerband. This 48-tooth steel sprocket delivers the aggressive gearing you need for aggressive riding while maintaining the durability required...12102133- SKU:
- 12102133
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
$29.95 -
On Sale
MOOSE OFFROAD Steel Rear Sprocket - Yamaha - 50 Tooth 1210-1134-50-ST
MOOSE OFFROAD
MSRP: $29.95Now: $19.00Was: $29.95A worn or undersized rear sprocket directly impacts your Yamaha's acceleration, top-end performance, and chain longevity. The MOOSE OFFROAD 50-tooth steel sprocket delivers the durability and precision fit your machine demands, whether you're pushing...12102134- SKU:
- 12102134
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
MSRP: $29.95Now: $19.00Was: $29.95 -
On Sale
MOOSE OFFROAD Steel Rear Sprocket - Yamaha - 43 Tooth 1210-1876-43-ST
MOOSE OFFROAD
MSRP: $29.95Now: $19.00Was: $29.95A worn or bent rear sprocket directly impacts your Yamaha's acceleration, top-end performance, and overall drivetrain efficiency. This MOOSE OFFROAD steel sprocket restores precise power delivery and chain engagement with CNC-machined accuracy, ensuring...12102135- SKU:
- 12102135
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
MSRP: $29.95Now: $19.00Was: $29.95 -
MOOSE OFFROAD Steel Rear Sprocket - Yamaha - 45 Tooth 1210-1876-45-ST
MOOSE OFFROAD
$29.95A worn or damaged rear sprocket compromises power delivery and acceleration consistency—especially critical if you're pushing your Yamaha hard on the track or trail. This MOOSE OFFROAD sprocket restores precise gear engagement with CNC-machined...12102136- SKU:
- 12102136
- Availability:
- Ships Same Business Day
- Weight:
- 2.28 LBS
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
MOOSE OFFROAD Steel Rear Sprocket - Honda - 45 Tooth 1210-301-45-ST
MOOSE OFFROAD
$29.95A worn or inadequate rear sprocket limits your Honda's acceleration, fuel efficiency, and chain longevity. The MOOSE OFFROAD Steel Rear Sprocket delivers the precision engineering and durability you need to maintain consistent power delivery whether...12102137- SKU:
- 12102137
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
MOOSE OFFROAD Steel Rear Sprocket - Kawasaki - 43 Tooth 1210-487-43-ST
MOOSE OFFROAD
$29.95A worn or incorrect rear sprocket directly impacts your Kawasaki's acceleration, top-end velocity, and overall drivetrain efficiency. The 43-tooth configuration on this MOOSE sprocket delivers the performance advantage you need, whether you're pushing...12102138- SKU:
- 12102138
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
MOOSE OFFROAD Steel Rear Sprocket - Kawasaki - 44 Tooth 1210-487-44-ST
MOOSE OFFROAD
$29.95A worn or damaged rear sprocket directly impacts power delivery, acceleration, and overall drivetrain efficiency on your Kawasaki. The MOOSE OFFROAD Steel Rear Sprocket delivers the precision engineering and durability needed to maintain peak performance...12102139- SKU:
- 12102139
- Availability:
- Ships Same Business Day
- Weight:
- 1.82 LBS
$29.95 -
MOOSE OFFROAD Steel Rear Sprocket - Kawasaki - 46 Tooth 1210-487-46-ST
MOOSE OFFROAD
$29.95A worn or mismatched rear sprocket directly impacts your Kawasaki's acceleration, top-end power, and chain longevity. This MOOSE OFFROAD steel sprocket delivers the durability and precision fitment needed for consistent performance, whether you're...12102140- SKU:
- 12102140
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
On Sale
MOOSE OFFROAD Steel Rear Sprocket - Yamaha - 45 Tooth 1210-857-45-ST
MOOSE OFFROAD
MSRP: $29.95Now: $19.00Was: $29.95A worn or damaged rear sprocket directly impacts power delivery, acceleration, and overall drivetrain efficiency on your Yamaha. The MOOSE OFFROAD Steel Rear Sprocket delivers the precision engineering and durability you need to maintain peak...12102141- SKU:
- 12102141
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
MSRP: $29.95Now: $19.00Was: $29.95 -
MOOSE OFFROAD Steel Rear Sprocket - Yamaha- 45 Tooth 1210-855-45-ST
MOOSE OFFROAD
$29.95A worn or damaged rear sprocket directly impacts acceleration, top-end performance, and drivetrain efficiency on your Yamaha. The MOOSE OFFROAD Steel Rear Sprocket delivers the precision engineering and durability needed to restore full power transfer...12102142- SKU:
- 12102142
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$29.95 -
MOOSE OFFROAD Steel Rear Sprocket - Yamaha - 48 Tooth 1210-855-48-ST
MOOSE OFFROAD
$29.95A worn or mismatched rear sprocket robs your Yamaha of responsive acceleration and wastes engine power through inefficient power transfer. This MOOSE OFFROAD steel sprocket restores optimal drivetrain performance while delivering the durability needed...12102143- SKU:
- 12102143
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$29.95 -
MOOSE OFFROAD Rear Sprocket - 45 Tooth 1211-210-45-10
MOOSE OFFROAD
$39.95A quality rear sprocket is critical to maintaining chain engagement and translating power efficiently to your wheels—worn or poorly manufactured sprockets introduce play, accelerate chain wear, and compromise acceleration. The MOOSE OFFROAD 45-tooth rear...12111412- SKU:
- 12111412
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE OFFROAD Rear Sprocket - 46 Tooth 1211-210-46-10
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end speed, and chain longevity. The MOOSE OFFROAD 46-tooth sprocket delivers the precision engineering and durability needed for consistent power delivery, whether you're...12111413- SKU:
- 12111413
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE OFFROAD Rear Sprocket - 48 Tooth 1211-210-48-10
MOOSE OFFROAD
$39.95A properly engineered rear sprocket is fundamental to transferring power efficiently to your wheels without premature wear or chain slippage. The MOOSE OFFROAD 48-tooth sprocket delivers the durability and precision required for sustained off-road...12111415- SKU:
- 12111415
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 49 Tooth 1211-210-49-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket robs your machine of acceleration and top-end performance. The MOOSE OFFROAD 49-tooth rear sprocket delivers consistent power transfer through premium 7075 T651 aluminum construction that resists the distortion and...12111416- SKU:
- 12111416
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE OFFROAD Rear Sprocket - 55 Tooth 1211-215-55-10
MOOSE OFFROAD
$39.95A worn or inadequate rear sprocket directly compromises your bike's acceleration, top-end performance, and drivetrain efficiency. The MOOSE OFFROAD 55-tooth sprocket delivers maximum tooth engagement and chain contact through precision CNC machining,...12111424- SKU:
- 12111424
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal:
