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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MOOSE OFFROAD Rear Sprocket - 49 Tooth - Yamaha 1211-251-49-11
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your Yamaha's acceleration, top-end performance, and chain longevity. This MOOSE OFFROAD 49-tooth sprocket replaces OEM components with precision-machined construction that delivers consistent power...12111587- SKU:
- 12111587
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth - Yamaha 1211-251-50-11
MOOSE OFFROAD
$39.95A properly sized rear sprocket is fundamental to optimizing your Yamaha's acceleration, top-end speed, and overall drivetrain efficiency. The MOOSE OFFROAD 50-tooth sprocket delivers measurable performance gains through precision engineering and superior...12111588- SKU:
- 12111588
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 51 Tooth - Yamaha 1211-251-51-11
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket directly impacts your acceleration, top speed, and overall drivetrain efficiency on your Yamaha. The MOOSE OFFROAD 51-tooth sprocket delivers optimized gearing for aggressive riding while maintaining the structural...12111589- SKU:
- 12111589
- Availability:
- Ships Same Business Day
- Weight:
- 1.24 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 49 Tooth - Yamaha 1211-853-49-11
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end performance, and chain longevity. The MOOSE OFFROAD 49-tooth sprocket is precision-machined from premium 7075 T651 aluminum—engineered with extra tempering to resist...12111598- SKU:
- 12111598
- Availability:
- Ships Same Business Day
- Weight:
- 11.02 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth - Yamaha 1211-853-50-11
MOOSE OFFROAD
$39.95If you're running Yamaha dirt bikes or ATVs hard, sprocket wear directly impacts acceleration, top speed, and chain longevity. The MOOSE OFFROAD 50-tooth rear sprocket delivers the precision engineering and material science needed to handle repeated...12111599- SKU:
- 12111599
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 49 Tooth - Honda/Yamaha 1211-245-49-12
MOOSE OFFROAD
$39.95A quality rear sprocket is fundamental to consistent power delivery and chain longevity in off-road riding. The MOOSE OFFROAD 49-tooth sprocket delivers precision engineering that directly impacts acceleration response, wear characteristics, and overall...12111610- SKU:
- 12111610
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 47 Tooth - Suzuki/Yamaha 1211-798-47-12
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your acceleration, top-end speed, and overall drivetrain efficiency. The MOOSE OFFROAD 47-tooth sprocket delivers the precision engineering and material science needed to optimize chain engagement and...12111614- SKU:
- 12111614
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth - Suzuki/Yamaha 1211-798-50-12
MOOSE OFFROAD
$39.95A properly sized rear sprocket is fundamental to maximizing your bike's acceleration, top-end speed, and overall driveability. The MOOSE OFFROAD 50-tooth rear sprocket delivers precision engineering that directly impacts chain engagement and powertrain...12111617- SKU:
- 12111617
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 48 Tooth - Yamaha 1211-251-48-12
MOOSE OFFROAD
$39.95A rear sprocket is fundamental to your drivetrain's power delivery and acceleration characteristics. The MOOSE OFFROAD 48-tooth sprocket delivers the precision engineering needed for consistent performance, whether you're pushing hard on the track or...12111618- SKU:
- 12111618
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 49 Tooth - Yamaha 1211-251-49-12
MOOSE OFFROAD
$39.95A worn or incompatible rear sprocket directly impacts your Yamaha's acceleration, top-end speed, and chain longevity. This MOOSE OFFROAD 49-tooth sprocket delivers the precision engineering and material quality needed to maintain consistent power...12111619- SKU:
- 12111619
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth - Yamaha 1211-251-50-12
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket directly impacts your Yamaha's acceleration, top-end speed, and chain longevity. The MOOSE OFFROAD 50-tooth sprocket delivers the precision engineering and durability that separates reliable performance from frequent...12111620- SKU:
- 12111620
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 51 Tooth - Blue - Yamaha 1211-251-51-12
MOOSE OFFROAD
$39.95A worn or undersized sprocket limits your bike's acceleration and top-end performance. The MOOSE OFFROAD 51-tooth rear sprocket delivers the precision engineering and durability you need for consistent power delivery and extended chain life. Built from...12111621- SKU:
- 12111621
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 52 Tooth - Yamaha 1211-251-52-12
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your bike's acceleration, top speed, and chain longevity. This 52-tooth sprocket from MOOSE OFFROAD delivers the precise tooth engagement and durability you need for consistent, reliable...12111622- SKU:
- 12111622
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 52 Tooth - Suzuki/Yamaha 1211-798-52-12
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket compromises acceleration, top-end performance, and chain longevity. The MOOSE OFFROAD 52-tooth rear sprocket delivers precision engineering with 7075 T651 aluminum construction—superior to standard alternatives—ensuring...12111623- SKU:
- 12111623
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 49 Tooth - Yamaha 1211-853-49-12
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket robs your Yamaha of efficiency and introduces premature chain wear. This 49-tooth MOOSE OFFROAD sprocket delivers precise engagement and durability through advanced manufacturing, ensuring your power transfer remains...12111627- SKU:
- 12111627
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 45 Tooth - Honda 1211-210-45-13
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your Honda's acceleration, top-end speed, and chain longevity. This 45-tooth MOOSE OFFROAD sprocket delivers the precision fit and durability your bike demands, whether you're pushing hard on the track...12111630- SKU:
- 12111630
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 46 Tooth - Honda 1211-210-46-13
MOOSE OFFROAD
$39.95A 46-tooth rear sprocket directly impacts your bike's acceleration, top-end performance, and chain longevity. If you're running aggressive gearing or looking to optimize power delivery across the RPM band, tooth count is non-negotiable. This MOOSE...12111631- SKU:
- 12111631
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 47 Tooth - Honda 1211-210-47-13
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts chain wear, acceleration response, and overall drivetrain efficiency. The MOOSE OFFROAD 47-tooth sprocket delivers precision engineering with 7075 T651 aluminum construction, eliminating the distortion...12111632- SKU:
- 12111632
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 48 Tooth - Honda 1211-210-48-13
MOOSE OFFROAD
$39.95Your Honda's drivetrain efficiency hinges on precise power transfer from engine to rear wheel—and a worn or suboptimal sprocket creates drag, noise, and lost performance. This MOOSE OFFROAD 48-tooth rear sprocket replaces stamped OEM designs with a fully...12111633- SKU:
- 12111633
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 49 Tooth - Honda 1211-210-49-13
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your Honda's power delivery, acceleration response, and chain longevity. The MOOSE OFFROAD 49-tooth rear sprocket restores precision engagement between sprocket and chain, translating engine power more...12111634- SKU:
- 12111634
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$39.95
