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 - 45 Tooth - Kawasaki 1211-478-45-10
MOOSE OFFROAD
$39.95A rear sprocket is fundamental to your drivetrain's efficiency and acceleration profile. This MOOSE OFFROAD 45-tooth sprocket delivers the precise gearing you need while maintaining the durability required for sustained high-performance riding. The 7075...12112015- SKU:
- 12112015
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 46 Tooth - Kawasaki 1211-478-46-10
MOOSE OFFROAD
$39.95A quality rear sprocket is fundamental to your bike's acceleration, top-end performance, and drivetrain longevity. The MOOSE OFFROAD 46-tooth rear sprocket delivers superior durability through precision manufacturing and premium material selection,...12112016- SKU:
- 12112016
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 42 Tooth - Kawasaki 1211-1489-42-10
MOOSE OFFROAD
$39.95A worn or incorrect sprocket directly impacts your power delivery, acceleration, and chain longevity. The MOOSE OFFROAD 42-tooth rear sprocket is engineered from premium 7075 T651 aluminum to handle the demands of high-performance riding while...12112017- SKU:
- 12112017
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 41 Tooth - Suzuki 1211-1792-41-10
MOOSE OFFROAD
$39.95A properly matched sprocket is fundamental to maintaining chain engagement, power delivery, and drivetrain longevity on your Suzuki. The MOOSE OFFROAD 41-tooth rear sprocket delivers the precision engineering and material science needed for consistent...12112019- SKU:
- 12112019
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$39.95 -
On Sale
MOOSE OFFROAD Rear Sprocket - 42 Tooth - Suzuki 1211-1792-42-10
MOOSE OFFROAD
MSRP: $39.95Now: $26.00Was: $39.95A worn or mismatched rear sprocket directly impacts your power delivery, throttle response, and chain wear. The MOOSE OFFROAD 42-tooth sprocket delivers precise tooth geometry and superior material composition to maximize contact with your chain,...12112020- SKU:
- 12112020
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
MSRP: $39.95Now: $26.00Was: $39.95 -
MOOSE OFFROAD Rear Sprocket - 43 Tooth - Suzuki 1211-1792-43-10
MOOSE OFFROAD
$39.95A worn or mismatched rear sprocket directly impacts your Suzuki's acceleration, top-end performance, and chain wear rates. The MOOSE OFFROAD 43-tooth sprocket delivers precise tooth geometry and material engineering that maximizes power transfer while...12112021- SKU:
- 12112021
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 45 Tooth 1211-1792-45-10
MOOSE OFFROAD
$39.95Chain engagement directly impacts acceleration and power delivery to the rear wheel—and a worn or suboptimal sprocket costs you both. This MOOSE OFFROAD rear sprocket replaces the weak link in your drivetrain with precision-engineered aluminum that...12112022- SKU:
- 12112022
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$39.95 -
On Sale
MOOSE OFFROAD Rear Sprocket - 47 Tooth 1211-1792-47-10
MOOSE OFFROAD
MSRP: $39.95Now: $26.00Was: $39.95A quality rear sprocket is critical to your off-road performance—it's the direct link between your chain and wheel acceleration. The MOOSE OFFROAD 47-tooth sprocket is precision-machined from 7075 T651 aluminum with enhanced tempering that eliminates...12112023- SKU:
- 12112023
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
MSRP: $39.95Now: $26.00Was: $39.95 -
MOOSE OFFROAD Rear Sprocket - 42 Tooth 1211-899-42-10
MOOSE OFFROAD
$39.95A quality rear sprocket directly impacts your drivetrain's efficiency, longevity, and power delivery to the ground. The MOOSE OFFROAD 42-tooth sprocket is engineered with 7075 T651 aluminum—a premium alloy that undergoes extra tempering to eliminate...12112024- SKU:
- 12112024
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 45 Tooth 1211-899-45-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket directly impacts your power delivery, acceleration response, and overall drivetrain efficiency. The MOOSE OFFROAD 45-tooth rear sprocket is precision-engineered to maximize chain contact and tooth engagement, reducing...12112025- SKU:
- 12112025
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
$39.95 -
On Sale
MOOSE OFFROAD Rear Sprocket - 41 Tooth 1211-1791-41-10
MOOSE OFFROAD
MSRP: $39.95Now: $26.00Was: $39.95A properly sized rear sprocket directly impacts your machine's acceleration curve and overall drivability. The MOOSE OFFROAD 41-tooth sprocket delivers the aggressive gearing needed for responsive torque delivery without sacrificing top-end performance...12112026- SKU:
- 12112026
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
MSRP: $39.95Now: $26.00Was: $39.95 -
MOOSE OFFROAD Rear Sprocket - 43 Tooth 1211-1791-43-10
MOOSE OFFROAD
$39.95A rear sprocket is one of the most critical drivetrain components for off-road performance, directly affecting acceleration, top speed, and chain longevity. The MOOSE OFFROAD 43-tooth sprocket delivers superior durability through premium 7075 T651...12112027- SKU:
- 12112027
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$39.95 -
On Sale
MOOSE OFFROAD Rear Sprocket - 43 Tooth 1211-1800-43-10
MOOSE OFFROAD
MSRP: $39.95Now: $26.00Was: $39.95A worn or mismatched rear sprocket directly impacts chain efficiency, throttle response, and drivetrain longevity. The MOOSE OFFROAD 43-tooth sprocket delivers precision-machined durability and optimized tooth geometry to maximize power transfer while...12112028- SKU:
- 12112028
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
MSRP: $39.95Now: $26.00Was: $39.95 -
On Sale
MOOSE OFFROAD Rear Sprocket - 47 Tooth 1211-2014-47-10
MOOSE OFFROAD
MSRP: $39.95Now: $26.00Was: $39.95A worn or undersized sprocket robs your drivetrain of efficiency and accelerates chain wear across your entire system. The MOOSE OFFROAD 47-tooth rear sprocket delivers precision-machined durability with optimized tooth geometry that maximizes contact...12112030- SKU:
- 12112030
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
MSRP: $39.95Now: $26.00Was: $39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth 1211-2014-50-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket compromises acceleration, chain longevity, and overall drivetrain efficiency. The MOOSE OFFROAD 50-tooth sprocket delivers the durability and precision needed for consistent performance, whether you're pushing through...12112031- SKU:
- 12112031
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 48 Tooth 1211-1134-48-10
MOOSE OFFROAD
$39.95A worn or incompatible rear sprocket compromises your drivetrain's efficiency and acceleration. The MOOSE OFFROAD 48-tooth sprocket delivers precision engineering that maximizes chain contact and tooth longevity, keeping power transfer consistent lap...12112032- SKU:
- 12112032
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 50 Tooth 1211-1134-50-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket robs your bike of acceleration and top-end performance. The MOOSE OFFROAD 50-tooth rear sprocket delivers optimal gear ratio while withstanding the demands of aggressive riding through precision engineering and premium...12112033- SKU:
- 12112033
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 43 Tooth - Yamaha 1211-1876-43-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket robs your Yamaha of acceleration and top-end performance. The MOOSE OFFROAD 43-tooth rear sprocket delivers the durability and precision engagement your chain demands, whether you're pushing through technical terrain or...12112034- SKU:
- 12112034
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
$39.95 -
MOOSE OFFROAD Rear Sprocket - 45 Tooth - Honda 1211-301-45-10
MOOSE OFFROAD
$39.95A worn or undersized rear sprocket robs you of acceleration and forces your chain to work harder than necessary, increasing wear across your entire drivetrain. The MOOSE OFFROAD 45-tooth rear sprocket delivers the optimal balance of durability and...12112041- SKU:
- 12112041
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
$39.95 -
REKLUSE Core Manual TorqDrive Clutch Kit - Beta RMS-7102122
REKLUSE
$1,139.00If you're serious about extracting maximum power from your Beta without compromising clutch reliability, the Rekluse Core Manual TorqDrive delivers the torque capacity and modulation you need. By packing up to four additional friction disks into the same...11300655- SKU:
- 11300655
- Availability:
- Ships Same Business Day
- Weight:
- 4.91 LBS
$1,139.00
