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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
  • RENTHAL Renthal Front Sprocket 13 Tooth for Gas Gas Husqvarna KTM 517-420-13P

    Renthal Front Sprocket 13 Tooth for Gas Gas Husqvarna KTM 517-420-13P

    RENTHAL

    $34.95
    A 13-tooth front sprocket is the direct path to sharper acceleration and quicker throttle response—essential whether you're pushing lap times or navigating technical terrain. By reducing unsprung weight and minimizing drivetrain slack, Renthal's...
    12122326
    SKU:
    12122326
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  •  WORKS CONNECTION Elite Axle Block Kit - Purple - Honda 17-P221

    WORKS CONNECTION Elite Axle Block Kit - Purple - Honda 17-P221

    WORKS CONNECTION

    $87.95
    Stock axle blocks limit your bike's ability to maintain consistent chain tension and optimal suspension geometry under load. The WORKS CONNECTION Elite Axle Block Kit converts your fixed axle design to a floating system, giving you measurably better...
    12311749
    SKU:
    12311749
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    $87.95
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  •  WORKS CONNECTION Elite Axle Block Kit - Purple - YZ 250/450F 17-P281

    WORKS CONNECTION Elite Axle Block Kit - Purple - YZ 250/450F 17-P281

    WORKS CONNECTION

    $87.95
    Precision axle alignment directly impacts your bike's handling and traction—especially in competitive racing where millimeters matter. The WORKS CONNECTION Elite Axle Block Kit converts your YZ's stock fixed axle design to a floating system, reducing...
    12311750
    SKU:
    12311750
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  •  WORKS CONNECTION Elite Axle Block Kit - Purple - Gas Gas/Husqvarna/KTM 17-P252

    WORKS CONNECTION Elite Axle Block Kit - Purple - Gas Gas/Husqvarna/KTM 17-P252

    WORKS CONNECTION

    $119.95
    Stock fixed axle blocks limit your bike's ability to track smoothly through corners and over varied terrain—costing you traction and forcing unnecessary adjustments mid-ride. The WORKS CONNECTION Elite Axle Block Kit converts your suspension to a true...
    12311751
    SKU:
    12311751
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    $119.95
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • MOOSE RACING 525 O-Ring Series - Drive Chain - 118 Links

    MOOSE RACING 525 O-Ring Series - Drive Chain - 118 Links

    MOOSE RACING

    $125.95
    A reliable 525 O-Ring chain is fundamental to consistent power delivery and longevity in high-performance applications. The MOOSE RACING 525 O-Ring Series eliminates the maintenance burden of traditional chains while maintaining the tensile strength...
    12220718
    SKU:
    12220718
    Availability:
    Ships Same Business Day
    Weight:
    5.21 LBS
    $125.95
    Qty in Cart: 0
    Quantity:
    Price:
    $125.95
    Subtotal:
  • RENTHAL Renthal Rear Sprocket 52 Tooth Black Aluminum for KTM Husqvarna Gas Gas 224U-520-52GPBK

    Renthal Rear Sprocket 52 Tooth Black Aluminum for KTM Husqvarna Gas Gas 224U-520-52GPBK

    RENTHAL

    $99.82
    If you're running a KTM, Husqvarna, or Gas Gas in competitive or high-demand riding, your rear sprocket needs to deliver consistent power transfer without unnecessary weight penalty. The Renthal 52-tooth rear sprocket cuts unsprung weight by 66% compared...
    12112808
    SKU:
    12112808
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    $99.82
    Qty in Cart: 0
    Quantity:
    Price:
    $99.82
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch for Suzuki GSX-R 600 2008-2025 RMS-6306002

    Rekluse RadiusX 4.0 Clutch for Suzuki GSX-R 600 2008-2025 RMS-6306002

    REKLUSE

    $849.00
    The Rekluse RadiusX 4.0 delivers the precise clutch engagement and heat management that modern track and street riding demands. Whether you're pushing hard on the circuit or commuting daily, this system eliminates lag and bite inconsistency while...
    11300875
    SKU:
    11300875
    Availability:
    Ships Same Business Day
    Weight:
    3.72 LBS
    $849.00
    Qty in Cart: 0
    Quantity:
    Price:
    $849.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kawasaki Ninja 300 2013-2017 RMS-8304003

    Rekluse RadiusX 4.0 Clutch Kawasaki Ninja 300 2013-2017 RMS-8304003

    REKLUSE

    $949.00
    If you're running a Ninja 300 hard on the track or pushing through aggressive street riding, clutch engagement directly impacts your throttle response and overall control. The Rekluse RadiusX 4.0 replaces vague, inconsistent lever feel with precise,...
    11300878
    SKU:
    11300878
    Availability:
    Ships Same Business Day
    Weight:
    1.88 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit TM 250cc-300cc 2019-2024 RMS-8318008

    Rekluse RadiusX 4.0 Clutch Kit TM 250cc-300cc 2019-2024 RMS-8318008

    REKLUSE

    $999.00
    If you're running a TM 250cc or 300cc in competitive or demanding conditions, clutch performance directly impacts your lap times and throttle response. The Rekluse RadiusX 4.0 delivers the precision engagement and heat management you need to maintain...
    11300879
    SKU:
    11300879
    Availability:
    Ships Same Business Day
    Weight:
    3.21 LBS
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusCX Clutch Kit Gas Gas MC 65 2024-2025 751-13065

    Rekluse RadiusCX Clutch Kit Gas Gas MC 65 2024-2025 751-13065

    REKLUSE

    $399.00
    If you're running a Rekluse RadiusCX on your 2024-2025 Gas Gas MC 65, wear on your friction and drive plates is inevitable. This OEM-equivalent replacement kit restores clutch engagement precision and eliminates the sluggish feel of a worn system,...
    11313962
    SKU:
    11313962
    Availability:
    Ships Same Business Day
    Weight:
    1.34 LBS
    $399.00
    Qty in Cart: 0
    Quantity:
    Price:
    $399.00
    Subtotal:
  • RENTHAL Renthal 50 Tooth Aluminum Rear Sprocket for Kawasaki 184U-520-50P-HA

    Renthal 50 Tooth Aluminum Rear Sprocket for Kawasaki 184U-520-50P-HA

    RENTHAL

    $99.82
    If you're serious about maximizing acceleration and reducing unsprung weight, a lightweight aluminum sprocket is one of the highest-return upgrades you can make. The Renthal 50-tooth sprocket cuts rotational mass by 66% compared to steel, translating...
    12112881
    SKU:
    12112881
    Availability:
    Ships Same Business Day
    Weight:
    1.19 LBS
    $99.82
    Qty in Cart: 0
    Quantity:
    Price:
    $99.82
    Subtotal:
  • Rekluse Slave Cylinder Gas Gas EC 250 2021-2024 RMS-2417001

    Rekluse Slave Cylinder Gas Gas EC 250 2021-2024 RMS-2417001

    REKLUSE

    $219.00
    If you're running a manual clutch on your Gas Gas EC 250, hydraulic feel and consistency directly impact your control in technical terrain. The Rekluse slave cylinder eliminates play and vagueness in your clutch lever, giving you the precise modulation...
    11321981
    SKU:
    11321981
    Availability:
    Ships Same Business Day
    Weight:
    0.58 LBS
    $219.00
    Qty in Cart: 0
    Quantity:
    Price:
    $219.00
    Subtotal:
  • AXP RACING Chain Guide - Black - Honda AX1608 AXP RACING Chain Guide - Black - Honda AX1608

    AXP RACING Chain Guide - Black - Honda AX1608

    AXP RACING

    $108.95
    A worn chain guide compromises both drivetrain efficiency and longevity, leading to accelerated sprocket wear and potential chain derailment under load. The AXP Racing Chain Guide replaces OEM plastic with UHMW (ultra-high-molecular-weight) polymer,...
    12311677
    SKU:
    12311677
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    MATERIAL:
    PLASTIC
    UNITS:
    EACH
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Blue - Sherco AX1613 AXP RACING Chain Guide - Blue - Sherco AX1613

    AXP RACING Chain Guide - Blue - Sherco AX1613

    AXP RACING

    $108.95
    A worn or damaged chain guide compromises power transfer and accelerates drivetrain wear—exactly what you can't afford in competitive riding. The AXP Racing Chain Guide protects your sprockets and chain from lateral movement and debris while maintaining...
    12311679
    SKU:
    12311679
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    PRODUCT NAME:
    CHAIN GUIDE
    MATERIAL:
    PLASTIC
    UNITS:
    EACH
    COLOR/FINISH:
    BLUE
    RIDING STYLE:
    OFF-ROAD
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Red - Gas Gas AX1615 AXP RACING Chain Guide - Red - Gas Gas AX1615

    AXP RACING Chain Guide - Red - Gas Gas AX1615

    AXP RACING

    $108.95
    A worn or damaged chain guide compromises your bike's drivetrain efficiency and risks catastrophic chain failure mid-ride. The AXP RACING Chain Guide replaces worn OEM components with a durable UHMW plastic construction that resists impact and abrasion...
    12311681
    SKU:
    12311681
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    RED
    MATERIAL:
    PLASTIC
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Orange - KTM AX1618 AXP RACING Chain Guide - Orange - KTM AX1618

    AXP RACING Chain Guide - Orange - KTM AX1618

    AXP RACING

    $108.95
    A worn or damaged chain guide compromises both drivetrain safety and longevity on your KTM. This AXP Racing guide uses UHMW plastic to resist abrasion from chain movement while its two-piece design allows quick replacement without breaking the chain...
    12311682
    SKU:
    12311682
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    MATERIAL:
    PLASTIC
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    STREET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    COLOR/FINISH:
    ORANGE
    RIDING STYLE:
    OFF-ROAD
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Black - Honda AX1632 AXP RACING Chain Guide - Black - Honda AX1632

    AXP RACING Chain Guide - Black - Honda AX1632

    AXP RACING

    $108.95
    Chain wear is one of the most common maintenance headaches for Honda racers and enthusiasts—and a worn or damaged chain guide can accelerate that degradation significantly. The AXP Racing Chain Guide protects your drivetrain from lateral chain movement...
    12311683
    SKU:
    12311683
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    MATERIAL:
    PLASTIC
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    BLACK
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Black - TMR AX1633 AXP RACING Chain Guide - Black - TMR AX1633

    AXP RACING Chain Guide - Black - TMR AX1633

    AXP RACING

    $108.95
    A worn or damaged chain guide can lead to poor power delivery, accelerated chain wear, and costly drivetrain damage. The AXP RACING Chain Guide replaces stock plastic components with engineered UHMW (ultra-high molecular weight) plastic that resists...
    12311684
    SKU:
    12311684
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    MATERIAL:
    PLASTIC
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Black - KTM/Husqvarna AX1664 AXP RACING Chain Guide - Black - KTM/Husqvarna AX1664

    AXP RACING Chain Guide - Black - KTM/Husqvarna AX1664

    AXP RACING

    $108.95
    A worn or damaged chain guide compromises both drivetrain efficiency and component longevity. The AXP RACING Chain Guide uses UHMW plastic construction to absorb impact and reduce friction, protecting your chain and sprockets from premature wear. The...
    12311685
    SKU:
    12311685
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    MATERIAL:
    PLASTIC
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Orange - KTM AX1666 AXP RACING Chain Guide - Orange - KTM AX1666

    AXP RACING Chain Guide - Orange - KTM AX1666

    AXP RACING

    $108.95
    Chain slap and derailment can cost you races and damage expensive drivetrain components. The AXP Racing Chain Guide protects your chain with UHMW plastic construction that absorbs impact while maintaining precise alignment under aggressive riding. Its...
    12311686
    SKU:
    12311686
    Availability:
    Ships Same Business Day
    Weight:
    1.16 LBS
    UNITS:
    EACH
    MATERIAL:
    PLASTIC
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    ORANGE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    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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