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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 OFFROAD Rear Sprocket - 54 Tooth - Husaberg/Husqvarna/KTM 1211-897-54-14

    MOOSE OFFROAD Rear Sprocket - 54 Tooth - Husaberg/Husqvarna/KTM 1211-897-54-14

    MOOSE OFFROAD

    $39.95
    A worn or mismatched rear sprocket directly impacts your bike's acceleration, top-end speed, and chain wear rate. The MOOSE OFFROAD 54-tooth rear sprocket delivers precise power transfer and extended durability through aerospace-grade materials and...
    12111665
    SKU:
    12111665
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 41 Tooth - Beta 1211-BET-41-10

    MOOSE OFFROAD Rear Sprocket - 41 Tooth - Beta 1211-BET-41-10

    MOOSE OFFROAD

    $39.95
    A worn or mismatched rear sprocket directly impacts your Beta's acceleration, top-end speed, and chain longevity. The MOOSE OFFROAD 41-tooth sprocket delivers the precision machining and material integrity necessary for consistent performance across...
    12111846
    SKU:
    12111846
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 42 Tooth - Beta 1211-BET-42-10

    MOOSE OFFROAD Rear Sprocket - 42 Tooth - Beta 1211-BET-42-10

    MOOSE OFFROAD

    $39.95
    A worn or incorrect rear sprocket directly impacts your Beta's acceleration, top-end speed, and overall drivetrain efficiency. The MOOSE OFFROAD 42-tooth sprocket is precision-machined from 7075 T651 aluminum to deliver consistent power transfer with...
    12111847
    SKU:
    12111847
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • On Sale
     MOOSE OFFROAD Rear Sprocket - 43 Tooth - Beta 1211-BET-43-10

    MOOSE OFFROAD Rear Sprocket - 43 Tooth - Beta 1211-BET-43-10

    MOOSE OFFROAD

    MSRP: $39.95
    Now: $26.00
    Was: $39.95
    A quality rear sprocket is fundamental to your dirt bike's acceleration, top-end speed, and overall drivetrain efficiency. The MOOSE OFFROAD 43-tooth sprocket delivers superior durability through advanced 7075 T651 aluminum construction that resists wear...
    12111848
    SKU:
    12111848
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    MSRP: $39.95
    Now: $26.00
    Was: $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $39.95
    Now: $26.00
    Was: $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 44 Tooth - Beta 1211-BET-44-10

    MOOSE OFFROAD Rear Sprocket - 44 Tooth - Beta 1211-BET-44-10

    MOOSE OFFROAD

    $39.95
    A properly sized rear sprocket is critical for optimizing your Beta's acceleration, top speed, and overall drivetrain efficiency. The MOOSE OFFROAD 44-tooth sprocket delivers precision engineering through full CNC machining and premium 7075 T651...
    12111849
    SKU:
    12111849
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 45 Tooth - Beta 1211-BET-45-10

    MOOSE OFFROAD Rear Sprocket - 45 Tooth - Beta 1211-BET-45-10

    MOOSE OFFROAD

    $39.95
    A worn or undersized rear sprocket directly impacts your Beta's acceleration, top-end speed, and drivetrain efficiency. The MOOSE OFFROAD 45-tooth sprocket delivers superior tooth engagement and chain contact through precision CNC machining and premium...
    12111850
    SKU:
    12111850
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 48 Tooth - Beta 1211-BET-48-10

    MOOSE OFFROAD Rear Sprocket - 48 Tooth - Beta 1211-BET-48-10

    MOOSE OFFROAD

    $39.95
    A properly matched rear sprocket is fundamental to your Beta's power delivery and chain longevity. The MOOSE OFFROAD 48-tooth sprocket delivers the precise engagement geometry your drivetrain needs, while its advanced 7075 T651 aluminum construction...
    12111853
    SKU:
    12111853
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 50 Tooth - Beta 1211-BET-50-10

    MOOSE OFFROAD Rear Sprocket - 50 Tooth - Beta 1211-BET-50-10

    MOOSE OFFROAD

    $39.95
    A worn or undersized rear sprocket forces your engine to work harder, reducing acceleration and top-end performance while accelerating chain wear. The MOOSE OFFROAD 50-Tooth Rear Sprocket delivers the durability and precision fit your Beta 1211 demands,...
    12111855
    SKU:
    12111855
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 51 Tooth - Beta 1211-BET-51-10

    MOOSE OFFROAD Rear Sprocket - 51 Tooth - Beta 1211-BET-51-10

    MOOSE OFFROAD

    $39.95
    A worn or incorrect sprocket tooth count directly impacts acceleration, top-end speed, and chain wear patterns. The MOOSE OFFROAD 51-tooth rear sprocket delivers the precision engineering and material quality needed to maximize drivetrain efficiency and...
    12111856
    SKU:
    12111856
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 41 Tooth - Beta 1211-BET-41-13

    MOOSE OFFROAD Rear Sprocket - 41 Tooth - Beta 1211-BET-41-13

    MOOSE OFFROAD

    $39.95
    A worn or mismatched rear sprocket compromises power delivery and forces your engine to work harder than it should. The MOOSE OFFROAD 41-Tooth Rear Sprocket delivers precise tooth engagement and lightweight construction that restores efficiency and...
    12111858
    SKU:
    12111858
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • On Sale
     MOOSE OFFROAD Rear Sprocket - 42 Tooth - Beta 1211-BET-42-13

    MOOSE OFFROAD Rear Sprocket - 42 Tooth - Beta 1211-BET-42-13

    MOOSE OFFROAD

    MSRP: $39.95
    Now: $26.00
    Was: $39.95
    A worn or undersized rear sprocket directly impacts acceleration, top-end performance, and chain longevity. The MOOSE OFFROAD 42-tooth sprocket delivers precision engineering where it matters most—maximizing tooth-to-chain contact and eliminating the...
    12111859
    SKU:
    12111859
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    MSRP: $39.95
    Now: $26.00
    Was: $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $39.95
    Now: $26.00
    Was: $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 43 Tooth - Beta 1211-BET-43-13

    MOOSE OFFROAD Rear Sprocket - 43 Tooth - Beta 1211-BET-43-13

    MOOSE OFFROAD

    $39.95
    A worn or mismatched rear sprocket kills acceleration and strains your drivetrain. The MOOSE OFFROAD 43-tooth sprocket delivers precise engagement and chain contact while maintaining the lightweight construction your Beta demands—ensuring reliable...
    12111860
    SKU:
    12111860
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 46 Tooth - Beta 1211-BET-46-13

    MOOSE OFFROAD Rear Sprocket - 46 Tooth - Beta 1211-BET-46-13

    MOOSE OFFROAD

    $39.95
    A properly sized rear sprocket is fundamental to your bike's acceleration, top-end speed, and overall drivetrain efficiency. The MOOSE OFFROAD 46-tooth rear sprocket delivers the precision engineering and material quality necessary for reliable...
    12111863
    SKU:
    12111863
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 48 Tooth - Beta 1211-BET-48-13

    MOOSE OFFROAD Rear Sprocket - 48 Tooth - Beta 1211-BET-48-13

    MOOSE OFFROAD

    $39.95
    A precision-engineered rear sprocket is critical to your dirt bike's acceleration, top-end performance, and drivetrain longevity. The MOOSE OFFROAD 48-tooth sprocket is built from 7075 T651 aluminum—a superior alloy that resists warping and distortion...
    12111865
    SKU:
    12111865
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 49 Tooth - Beta 1211-BET-49-13

    MOOSE OFFROAD Rear Sprocket - 49 Tooth - Beta 1211-BET-49-13

    MOOSE OFFROAD

    $39.95
    A worn or undersized rear sprocket directly impacts your Beta's acceleration, top-end speed, and overall drivetrain efficiency. The MOOSE OFFROAD 49-tooth rear sprocket delivers superior durability and consistent power transfer through precision...
    12111866
    SKU:
    12111866
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 50 Tooth - Beta 1211-BET-50-13

    MOOSE OFFROAD Rear Sprocket - 50 Tooth - Beta 1211-BET-50-13

    MOOSE OFFROAD

    $39.95
    A worn or undersized rear sprocket directly limits your Beta's acceleration and chain efficiency. This 50-tooth MOOSE OFFROAD sprocket delivers precision power transfer with a fully machined design that eliminates weak points found in stamped...
    12111867
    SKU:
    12111867
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 51 Tooth - Beta 1211-BET-51-13

    MOOSE OFFROAD Rear Sprocket - 51 Tooth - Beta 1211-BET-51-13

    MOOSE OFFROAD

    $39.95
    A worn or undersized rear sprocket directly impacts your Beta's acceleration, chain wear rates, and overall drivetrain efficiency. The MOOSE OFFROAD 51-tooth rear sprocket is precision-engineered to deliver optimal power transfer while reducing undue...
    12111868
    SKU:
    12111868
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 52 Tooth - Beta 1211-BET-52-13

    MOOSE OFFROAD Rear Sprocket - 52 Tooth - Beta 1211-BET-52-13

    MOOSE OFFROAD

    $39.95
    A worn or undersized rear sprocket limits your acceleration and chain longevity. This 52-tooth MOOSE OFFROAD sprocket delivers the durability and precise tooth geometry you need for consistent power transfer and extended drivetrain life, whether you're...
    12111869
    SKU:
    12111869
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 46 Tooth - Husqvarna/KTM 1211-895-46-12

    MOOSE OFFROAD Rear Sprocket - 46 Tooth - Husqvarna/KTM 1211-895-46-12

    MOOSE OFFROAD

    $39.95
    A worn or suboptimal rear sprocket directly impacts power delivery, chain wear, and overall drivetrain efficiency. This precision-machined 46-tooth sprocket restores optimal gear ratios while eliminating the flex and inefficiency common in stamped...
    12111893
    SKU:
    12111893
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  •  MOOSE OFFROAD Rear Sprocket - 47 Tooth - Husqvarna/KTM 1211-895-47-12

    MOOSE OFFROAD Rear Sprocket - 47 Tooth - Husqvarna/KTM 1211-895-47-12

    MOOSE OFFROAD

    $39.95
    A quality rear sprocket is fundamental to your Husqvarna or KTM's power delivery and chain longevity. This 47-tooth sprocket is precision-machined from 7075 T651 aluminum—a superior alloy with extra tempering that resists distortion while maintaining...
    12111894
    SKU:
    12111894
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    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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