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Dirt Bike Drivetrain

Dirt Bike Drivetrain

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
  • MOOSE RACING Front Sprocket - 12 Tooth - Yamaha/Kawasaki 26-4111-12CRMO

    MOOSE RACING Front Sprocket - 12 Tooth - Yamaha/Kawasaki 26-4111-12CRMO

    MOOSE RACING

    $18.95
    A worn or undersized front sprocket directly impacts your bike's acceleration, top-end speed, and overall driveline efficiency—especially on dirt and ADV platforms where precise gearing makes the difference between winning and falling behind. The MOOSE...
    12122183
    SKU:
    12122183
    Availability:
    Ships Same Business Day
    Weight:
    0.28 LBS
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 14 Tooth - Yamaha/Kawasaki 26-4111-14CRMO

    MOOSE RACING Front Sprocket - 14 Tooth - Yamaha/Kawasaki 26-4111-14CRMO

    MOOSE RACING

    $19.95
    The front sprocket is the foundation of your driveline geometry—get it wrong, and you'll lose acceleration, tire traction, and overall rideability. MOOSE Racing's 14-tooth chromoly sprocket is precision-engineered to handle the shock loads of dirt riding...
    12122185
    SKU:
    12122185
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 15 Tooth - Yamaha/Kawasaki 26-4111-15CRMO

    MOOSE RACING Front Sprocket - 15 Tooth - Yamaha/Kawasaki 26-4111-15CRMO

    MOOSE RACING

    $19.95
    A worn or incorrect front sprocket will compromise your entire drivetrain's efficiency, creating power loss and accelerated wear across your clutch and chain. The MOOSE RACING 15-tooth front sprocket restores precise engagement with your countershaft...
    12122186
    SKU:
    12122186
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 16 Tooth - Yamaha 26-4111-16CRMO

    MOOSE RACING Front Sprocket - 16 Tooth - Yamaha 26-4111-16CRMO

    MOOSE RACING

    $20.95
    A worn or undersized front sprocket creates power loss and erratic throttle response that'll cost you valuable time on the track or trail. The MOOSE RACING 16-tooth front sprocket delivers precision engagement with your countershaft, reducing drivetrain...
    12122187
    SKU:
    12122187
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    $20.95
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 12 Tooth - Suzuki 26-4124-12CRMO

    MOOSE RACING Front Sprocket - 12 Tooth - Suzuki 26-4124-12CRMO

    MOOSE RACING

    $15.95
    A worn or damaged front sprocket introduces slack in your drivetrain and robs you of power transfer efficiency—exactly what you can't afford in competitive or demanding riding conditions. The MOOSE RACING 12-tooth front sprocket delivers...
    12122190
    SKU:
    12122190
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 13 Tooth - Suzuki 26-4124-13CRMO

    MOOSE RACING Front Sprocket - 13 Tooth - Suzuki 26-4124-13CRMO

    MOOSE RACING

    $16.95
    A worn or undersized front sprocket directly impacts your Suzuki's acceleration, throttle response, and overall driveline efficiency. The MOOSE RACING 13-tooth front sprocket delivers the precision engineering and material durability needed to maintain...
    12122191
    SKU:
    12122191
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 14 Tooth - Suzuki 26-4124-14CRMO

    MOOSE RACING Front Sprocket - 14 Tooth - Suzuki 26-4124-14CRMO

    MOOSE RACING

    $16.95
    A worn or poorly machined front sprocket compromises your entire drivetrain's efficiency, causing power loss and accelerated wear on your chain and countershaft. The MOOSE RACING 14-tooth front sprocket is precision-engineered from high-tensile chromoly...
    12122192
    SKU:
    12122192
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 12 Tooth - Gas Gas/Kawasaki/Yamaha 26-4137-12CRMO

    MOOSE RACING Front Sprocket - 12 Tooth - Gas Gas/Kawasaki/Yamaha 26-4137-12CRMO

    MOOSE RACING

    $18.95
    A worn or undersized front sprocket robs your bike of acceleration and increases chain wear across your entire drivetrain. The MOOSE RACING 12-tooth front sprocket restores precise power delivery to your countershaft while distributing driveline forces...
    12122193
    SKU:
    12122193
    Availability:
    Ships Same Business Day
    Weight:
    0.29 LBS
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 13 Tooth - Gas Gas/Kawasaki/Yamaha 26-4137-13CRMO

    MOOSE RACING Front Sprocket - 13 Tooth - Gas Gas/Kawasaki/Yamaha 26-4137-13CRMO

    MOOSE RACING

    $18.95
    A worn or undersized front sprocket robs your bike of acceleration and top-end performance. The MOOSE RACING 13-tooth chromoly sprocket delivers precise engagement with your countershaft, eliminating slack and maximizing power transfer to the ground...
    12122194
    SKU:
    12122194
    Availability:
    Ships Same Business Day
    Weight:
    0.33 LBS
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 14 Tooth - Kawasaki/Yamaha 26-4137-14CRMO

    MOOSE RACING Front Sprocket - 14 Tooth - Kawasaki/Yamaha 26-4137-14CRMO

    MOOSE RACING

    $19.95
    A worn or incorrect front sprocket directly impacts your throttle response, acceleration, and overall drivetrain efficiency. This MOOSE RACING 14-tooth sprocket delivers precision engineering and durability built for demanding dirt, adventure, and ATV...
    12122195
    SKU:
    12122195
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 15 Tooth - Yamaha 26-4137-15CRMO

    MOOSE RACING Front Sprocket - 15 Tooth - Yamaha 26-4137-15CRMO

    MOOSE RACING

    $19.95
    A worn or damaged front sprocket compromises your entire drivetrain—costing you power transfer efficiency and risking catastrophic failure during critical rides. The MOOSE RACING 15-tooth front sprocket delivers precision-engineered durability with...
    12122196
    SKU:
    12122196
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 12 Tooth - Suzuki/Yamaha 26-4144-12CRMO

    MOOSE RACING Front Sprocket - 12 Tooth - Suzuki/Yamaha 26-4144-12CRMO

    MOOSE RACING

    $16.95
    Your bike's front sprocket is the first link in your driveline, and a worn or undersized unit robs you of acceleration and efficiency. The MOOSE RACING 12-tooth front sprocket delivers precise engagement with your countershaft through broached inner...
    12122197
    SKU:
    12122197
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 13 Tooth - Suzuki/Yamaha 26-4144-13CRMO

    MOOSE RACING Front Sprocket - 13 Tooth - Suzuki/Yamaha 26-4144-13CRMO

    MOOSE RACING

    $16.95
    A worn or compromised front sprocket directly impacts power delivery, acceleration, and overall drivetrain efficiency. The MOOSE RACING 13-tooth front sprocket restores precise engagement with your countershaft while distributing forces across a larger...
    12122198
    SKU:
    12122198
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 14 Tooth - Suzuki/Yamaha 26-4144-14CRMO

    MOOSE RACING Front Sprocket - 14 Tooth - Suzuki/Yamaha 26-4144-14CRMO

    MOOSE RACING

    $16.95
    A worn or incorrect front sprocket directly impacts your bike's acceleration, top-end speed, and clutch wear—making tooth count selection critical for your riding style and terrain. The MOOSE RACING 14-tooth front sprocket delivers precision engineering...
    12122199
    SKU:
    12122199
    Availability:
    Ships Same Business Day
    Weight:
    0.26 LBS
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 15 Tooth - Suzuki/Yamaha 26-4144-15CRMO

    MOOSE RACING Front Sprocket - 15 Tooth - Suzuki/Yamaha 26-4144-15CRMO

    MOOSE RACING

    $17.95
    A worn or poorly-matched front sprocket directly impacts power delivery, acceleration, and driveline durability. The MOOSE RACING 15-tooth front sprocket delivers OEM-exact geometry with superior material science—engineered to handle sustained high-load...
    12122200
    SKU:
    12122200
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    $17.95
    Qty in Cart: 0
    Quantity:
    Price:
    $17.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 14 Tooth - YZ 85 26-4146-14CRMO

    MOOSE RACING Front Sprocket - 14 Tooth - YZ 85 26-4146-14CRMO

    MOOSE RACING

    $16.95
    A worn or improperly sized front sprocket directly impacts throttle response, acceleration, and engine load—making sprocket selection critical for dirt bike performance. The MOOSE RACING 14-tooth front sprocket is engineered to deliver precise power...
    12122203
    SKU:
    12122203
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 14 Tooth - XT 600 26-4153-14CRMO

    MOOSE RACING Front Sprocket - 14 Tooth - XT 600 26-4153-14CRMO

    MOOSE RACING

    $25.95
    A worn or undersized front sprocket directly impacts acceleration response and power delivery across the entire RPM band. The MOOSE RACING 14-tooth front sprocket is engineered to maximize chainline efficiency while maintaining precise engagement with...
    12122204
    SKU:
    12122204
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    $25.95
    Qty in Cart: 0
    Quantity:
    Price:
    $25.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 15 Tooth - Yamaha 26-4153-15CRMO

    MOOSE RACING Front Sprocket - 15 Tooth - Yamaha 26-4153-15CRMO

    MOOSE RACING

    $26.95
    A worn or undersized front sprocket directly compromises acceleration and power delivery across the entire powerband. This MOOSE RACING 15-tooth sprocket restores precision engagement with your countershaft, eliminating slack and ensuring consistent...
    12122205
    SKU:
    12122205
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    $26.95
    Qty in Cart: 0
    Quantity:
    Price:
    $26.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 16 Tooth - Yamaha 26-4153-16CRMO

    MOOSE RACING Front Sprocket - 16 Tooth - Yamaha 26-4153-16CRMO

    MOOSE RACING

    $26.95
    Your front sprocket is the foundation of your powertrain's responsiveness and durability. A worn or undersized sprocket compromises acceleration, throttle response, and overall driveline efficiency—leaving performance gains on the table. The MOOSE RACING...
    12122206
    SKU:
    12122206
    Availability:
    Ships Same Business Day
    Weight:
    0.57 LBS
    $26.95
    Qty in Cart: 0
    Quantity:
    Price:
    $26.95
    Subtotal:
  • MOOSE RACING Front Sprocket - 14 Tooth - XTZ 750 26-4154-14CRMO

    MOOSE RACING Front Sprocket - 14 Tooth - XTZ 750 26-4154-14CRMO

    MOOSE RACING

    $22.95
    A worn or incorrect front sprocket directly impacts acceleration, top-end speed, and driveline efficiency on your XTZ 750. The MOOSE RACING 14-tooth front sprocket is engineered to exact OEM specifications with precision-broached splines that distribute...
    12122207
    SKU:
    12122207
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    $22.95
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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