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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
  • JT SPROCKETS Sprocket - Rear - Honda - 36-Tooth JTR1214.36

    JT SPROCKETS Sprocket - Rear - Honda - 36-Tooth JTR1214.36

    JT SPROCKETS

    $17.78
    Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    JTR121436
    SKU:
    JTR121436
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    TOOTH COUNT:
    36
    MOUNTING POSITION:
    REAR
    UNITS:
    EACH
    CHAIN SIZE:
    420
    MATERIAL:
    STEEL
    MODEL:
    HONDA
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    SPROCKET
    $17.78
    Qty in Cart: 0
    Quantity:
    Price:
    $17.78
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 17-Tooth JTF253.17

    JT SPROCKETS Counter Shaft Sprocket - 17-Tooth JTF253.17

    JT SPROCKETS

    $6.53
    Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120558
    SKU:
    12120558
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    RIDING STYLE:
    STREET
    CHAIN SIZE:
    420
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    TOOTH COUNT:
    17
    TYPE:
    COUNTERSHAFT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MODEL:
    HONDA
    PRODUCT NAME:
    SPROCKET
    $6.53
    Qty in Cart: 0
    Quantity:
    Price:
    $6.53
    Subtotal:
  • JT SPROCKETS Sprocket - Rear - Honda - 47-Tooth JTR1214.47

    JT SPROCKETS Sprocket - Rear - Honda - 47-Tooth JTR1214.47

    JT SPROCKETS

    $18.48
    Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    JTR121447
    SKU:
    JTR121447
    Availability:
    Ships Same Business Day
    Weight:
    1.60 LBS
    MODEL:
    HONDA
    MOUNTING POSITION:
    REAR
    TOOTH COUNT:
    47
    CHAIN SIZE:
    420
    PRODUCT NAME:
    SPROCKET
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $18.48
    Qty in Cart: 0
    Quantity:
    Price:
    $18.48
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 12-Tooth JTF1906.12

    JT SPROCKETS Counter Shaft Sprocket - 12-Tooth JTF1906.12

    JT SPROCKETS

    $9.83
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120665
    SKU:
    12120665
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    CHAIN SIZE:
    420
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    TYPE:
    COUNTERSHAFT
    MODEL:
    KTM
    TOOTH COUNT:
    12
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $9.83
    Qty in Cart: 0
    Quantity:
    Price:
    $9.83
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1906.13

    JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1906.13

    JT SPROCKETS

    $10.03
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120666
    SKU:
    12120666
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    CHAIN SIZE:
    420
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    TYPE:
    COUNTERSHAFT
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    13
    UNITS:
    EACH
    MODEL:
    KTM
    PRODUCT NAME:
    SPROCKET
    $10.03
    Qty in Cart: 0
    Quantity:
    Price:
    $10.03
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1906.14

    JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1906.14

    JT SPROCKETS

    $10.03
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120667
    SKU:
    12120667
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    TOOTH COUNT:
    14
    PRODUCT NAME:
    SPROCKET
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    CHAIN SIZE:
    420
    MODEL:
    KTM
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    $10.03
    Qty in Cart: 0
    Quantity:
    Price:
    $10.03
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1907.13

    JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1907.13

    JT SPROCKETS

    $11.50
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120668
    SKU:
    12120668
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    CHAIN SIZE:
    428
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    TYPE:
    COUNTERSHAFT
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    13
    UNITS:
    EACH
    MODEL:
    KTM
    $11.50
    Qty in Cart: 0
    Quantity:
    Price:
    $11.50
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1907.14

    JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1907.14

    JT SPROCKETS

    $11.50
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120669
    SKU:
    12120669
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    14
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    CHAIN SIZE:
    428
    TYPE:
    COUNTERSHAFT
    $11.50
    Qty in Cart: 0
    Quantity:
    Price:
    $11.50
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF824.15

    JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF824.15

    JT SPROCKETS

    $16.05
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120674
    SKU:
    12120674
    Availability:
    Ships Same Business Day
    Weight:
    0.39 LBS
    CHAIN SIZE:
    520
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    MATERIAL:
    STEEL
    MODEL:
    HUSQVARNA
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    15
    PRODUCT NAME:
    SPROCKET
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    $16.05
    Qty in Cart: 0
    Quantity:
    Price:
    $16.05
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF1309.15

    JT SPROCKETS Counter Shaft Sprocket - 15-Tooth JTF1309.15

    JT SPROCKETS

    $15.05
    Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120307
    SKU:
    12120307
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    TOOTH COUNT:
    15
    CHAIN SIZE:
    520
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    ATV
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    $15.05
    Qty in Cart: 0
    Quantity:
    Price:
    $15.05
    Subtotal:
  • JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1351.40

    JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1351.40

    JT SPROCKETS

    $28.78
    Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfection
    JTR135140
    SKU:
    JTR135140
    Availability:
    Ships Same Business Day
    Weight:
    1.65 LBS
    CHAIN SIZE:
    520
    COLOR/FINISH:
    BLACK
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    UNITS:
    EACH
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    40
    $28.78
    Qty in Cart: 0
    Quantity:
    Price:
    $28.78
    Subtotal:
  • JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1352.40

    JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1352.40

    JT SPROCKETS

    $28.78
    Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfection
    JTR135240
    SKU:
    JTR135240
    Availability:
    Ships Same Business Day
    Weight:
    1.60 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    CHAIN SIZE:
    520
    TOOTH COUNT:
    40
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    MODEL:
    HONDA
    UNITS:
    EACH
    $28.78
    Qty in Cart: 0
    Quantity:
    Price:
    $28.78
    Subtotal:
  • JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1353.40

    JT SPROCKETS Sprocket - Rear - Honda - 40-Tooth JTR1353.40

    JT SPROCKETS

    $27.00
    Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfection
    JTR135340
    SKU:
    JTR135340
    Availability:
    Ships Same Business Day
    Weight:
    1.70 LBS
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    40
    MATERIAL:
    STEEL
    UNITS:
    EACH
    CHAIN SIZE:
    520
    MODEL:
    HONDA
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    $27.00
    Qty in Cart: 0
    Quantity:
    Price:
    $27.00
    Subtotal:
  • JT SPROCKETS Sprocket - Rear - Honda - 38-Tooth JTR1354.38

    JT SPROCKETS Sprocket - Rear - Honda - 38-Tooth JTR1354.38

    JT SPROCKETS

    $27.38
    Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfection
    JTR135438
    SKU:
    JTR135438
    Availability:
    Ships Same Business Day
    Weight:
    1.30 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    COLOR/FINISH:
    BLACK
    CHAIN SIZE:
    520
    TOOTH COUNT:
    38
    UNITS:
    EACH
    $27.38
    Qty in Cart: 0
    Quantity:
    Price:
    $27.38
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1441.14SC

    JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF1441.14SC

    JT SPROCKETS

    $18.38
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120505
    SKU:
    12120505
    Availability:
    Ships Same Business Day
    Weight:
    0.28 LBS
    CHAIN SIZE:
    520
    TOOTH COUNT:
    14
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    MATERIAL:
    STEEL
    MODEL:
    SUZUKI
    RIDING STYLE:
    OFF-ROAD
    $18.38
    Qty in Cart: 0
    Quantity:
    Price:
    $18.38
    Subtotal:
  • JT SPROCKETS Sprocket - Rear - Honda - 50-Tooth JTR1355.50

    JT SPROCKETS Sprocket - Rear - Honda - 50-Tooth JTR1355.50

    JT SPROCKETS

    $26.73
    Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfection
    JTR135550
    SKU:
    JTR135550
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    MATERIAL:
    STEEL
    MODEL:
    HONDA
    CHAIN SIZE:
    428
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    TOOTH COUNT:
    50
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $26.73
    Qty in Cart: 0
    Quantity:
    Price:
    $26.73
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1445.13SC

    JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1445.13SC

    JT SPROCKETS

    $12.50
    Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120507
    SKU:
    12120507
    Availability:
    Ships Same Business Day
    Weight:
    0.24 LBS
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    ATV
    TOOTH COUNT:
    13
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    MATERIAL:
    STEEL
    MODEL:
    SUZUKI
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    CHAIN SIZE:
    520
    $12.50
    Qty in Cart: 0
    Quantity:
    Price:
    $12.50
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1565.13SC

    JT SPROCKETS Counter Shaft Sprocket - 13-Tooth JTF1565.13SC

    JT SPROCKETS

    $14.73
    Computer-designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120510
    SKU:
    12120510
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    OFF-ROAD
    CHAIN SIZE:
    520
    MODEL:
    KAWASAKI
    RIDING STYLE:
    STREET
    TYPE:
    COUNTERSHAFT
    COLOR/FINISH:
    NATURAL
    TOOTH COUNT:
    13
    UNITS:
    EACH
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    $14.73
    Qty in Cart: 0
    Quantity:
    Price:
    $14.73
    Subtotal:
  • JT SPROCKETS Sprocket - Rear - Honda - 42-Tooth JTR1486.42

    JT SPROCKETS Sprocket - Rear - Honda - 42-Tooth JTR1486.42

    JT SPROCKETS

    $31.40
    Made from aviation-grade 7075-T6 aluminum alloy, optimal lightweight design and CNC-machined for performance and lifespan, Manufactured from the best materials with a special self-cleaning design, and hand-finished to perfection
    JTR148642
    SKU:
    JTR148642
    Availability:
    Ships Same Business Day
    Weight:
    1.90 LBS
    PRODUCT NAME:
    SPROCKET
    MATERIAL:
    STEEL
    MODEL:
    HONDA
    TOOTH COUNT:
    42
    CHAIN SIZE:
    520
    MOUNTING POSITION:
    REAR
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $31.40
    Qty in Cart: 0
    Quantity:
    Price:
    $31.40
    Subtotal:
  • JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF432.14SC

    JT SPROCKETS Counter Shaft Sprocket - 14-Tooth JTF432.14SC

    JT SPROCKETS

    $16.80
    Computer designed to achieve ultimate strength at minimum weight, JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value, Every sprocket meets or exceeds the highest possible quality...
    12120518
    SKU:
    12120518
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    MATERIAL:
    STEEL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    OFF-ROAD
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    14
    $16.80
    Qty in Cart: 0
    Quantity:
    Price:
    $16.80
    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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