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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
  • AXP RACING Chain Guide - Black - Kawasaki AX1676 AXP RACING Chain Guide - Black - Kawasaki AX1676

    AXP RACING Chain Guide - Black - Kawasaki AX1676

    AXP RACING

    $108.95
    Chain wear is one of the fastest ways to compromise drivetrain performance and reliability. The AXP Racing Chain Guide protects your sprockets and chain from lateral movement and impact, reducing noise while extending component life. With a two-piece...
    12311689
    SKU:
    12311689
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    BLACK
    MATERIAL:
    PLASTIC
    UNITS:
    EACH
    PRODUCT NAME:
    CHAIN GUIDE
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • AXP RACING Chain Guide - Red - Beta AX1603

    AXP RACING Chain Guide - Red - Beta AX1603

    AXP RACING

    $108.95
    A worn or damaged chain guide compromises both your drivetrain's longevity and your bike's reliability on the track or trail. The AXP Racing Chain Guide replaces that weak link with UHMW plastic engineering that resists wear far better than stock...
    12311676
    SKU:
    12311676
    Availability:
    Ships Same Business Day
    Weight:
    0.91 LBS
    COLOR/FINISH:
    RED
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    STREET
    MATERIAL:
    PLASTIC
    UNITS:
    EACH
    $108.95
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Beta 350 RR 2024 RMS-8302128 Rekluse RadiusX 4.0 Clutch Kit for Beta 350 RR 2024 RMS-8302128

    Rekluse RadiusX 4.0 Clutch Kit for Beta 350 RR 2024 RMS-8302128

    REKLUSE

    $999.00
    If you're pushing your Beta 350 RR to its limits, clutch modulation and heat management become non-negotiable—especially in extended high-temperature riding sessions. The Rekluse RadiusX 4.0 delivers the responsiveness and durability you need to maintain...
    11300713
    SKU:
    11300713
    Availability:
    Ships Same Business Day
    Weight:
    2.56 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    KIT
    MODEL:
    RADIUSX 4.0
    RIDING STYLE:
    STREET
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kawasaki KX450 2021-2025 RMS-8304047 Rekluse RadiusX 4.0 Clutch Kawasaki KX450 2021-2025 RMS-8304047

    Rekluse RadiusX 4.0 Clutch Kawasaki KX450 2021-2025 RMS-8304047

    REKLUSE

    $999.00
    If you're running a KX450 at the edge of its limits, your clutch has to keep up—and that means precise engagement, consistent power delivery, and durability that won't quit under extreme heat and load. The Rekluse RadiusX 4.0 addresses the weak points in...
    11300719
    SKU:
    11300719
    Availability:
    Ships Same Business Day
    Weight:
    3.13 LBS
    TYPE:
    COMPLETE
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    RADIUSX 4.0
    UNITS:
    KIT
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch KTM 250 EXC 2017-2019 RMS-8313086 Rekluse RadiusX 4.0 Clutch KTM 250 EXC 2017-2019 RMS-8313086

    Rekluse RadiusX 4.0 Clutch KTM 250 EXC 2017-2019 RMS-8313086

    REKLUSE

    $1,039.00
    The RadiusX 4.0 delivers the responsive clutch engagement and heat management that high-performance riding demands. Whether you're pushing hard on the track or navigating technical terrain, this clutch system reduces drag while maintaining consistent...
    11300755
    SKU:
    11300755
    Availability:
    Ships Same Business Day
    Weight:
    2.98 LBS
    MODEL:
    RADIUSX 4.0
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    KIT
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    RIDING STYLE:
    STREET
    $1,039.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,039.00
    Subtotal:
  • Rekluse RadiusCX 4.0 Clutch Kit for Honda CRF450R 2021-2025 RMS-8901102 Rekluse RadiusCX 4.0 Clutch Kit for Honda CRF450R 2021-2025 RMS-8901102

    Rekluse RadiusCX 4.0 Clutch Kit for Honda CRF450R 2021-2025 RMS-8901102

    REKLUSE

    $1,449.00
    The Rekluse RadiusCX 4.0 delivers the precise clutch engagement and heat management you need to push the CRF450R to its limit without compromise. Whether you're racing cross-country or tackling technical terrain, this clutch system responds exactly how...
    11300768
    SKU:
    11300768
    Availability:
    Ships Same Business Day
    Weight:
    5.53 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    MODEL:
    RADIUSCX 4.0
    PRODUCT NAME:
    CLUTCH KIT
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $1,449.00
    Subtotal:
  • Rekluse RadiusCX 4.0 Clutch Kit for Kawasaki KX450F 2021-2025 RMS-8904046 Rekluse RadiusCX 4.0 Clutch Kit for Kawasaki KX450F 2021-2025 RMS-8904046

    Rekluse RadiusCX 4.0 Clutch Kit for Kawasaki KX450F 2021-2025 RMS-8904046

    REKLUSE

    $1,449.00
    If you're running a KX450F in competitive or high-intensity riding, clutch feel and modulation directly impact your throttle response and overall control. The Rekluse RadiusCX 4.0 replaces vague engagement with precise, predictable lever...
    11300791
    SKU:
    11300791
    Availability:
    Ships Same Business Day
    Weight:
    2.61 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    MODEL:
    RADIUSCX 4.0
    PRODUCT NAME:
    CLUTCH KIT
    UNITS:
    KIT
    $1,449.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,449.00
    Subtotal:
  • Rekluse RadiusCX 4.0 Clutch Kit Yamaha YZ250F 2020-2025 RMS-8907002 Rekluse RadiusCX 4.0 Clutch Kit Yamaha YZ250F 2020-2025 RMS-8907002

    Rekluse RadiusCX 4.0 Clutch Kit Yamaha YZ250F 2020-2025 RMS-8907002

    REKLUSE

    $1,449.00
    If you're pushing a YZ250F to its limits in high-temperature riding conditions, clutch fade and inconsistent engagement will cost you lap time and confidence. The Rekluse RadiusCX 4.0 is engineered to eliminate these issues with an updated EXP assembly,...
    11300796
    SKU:
    11300796
    Availability:
    Ships Same Business Day
    Weight:
    4.90 LBS
    PRODUCT NAME:
    CLUTCH KIT
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    MODEL:
    RADIUSCX 4.0
    $1,449.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,449.00
    Subtotal:
  • Rekluse RadiusCX 4.0 Clutch Kit for KTM 250 XC TPI 2023-2025 RMS-8913096 Rekluse RadiusCX 4.0 Clutch Kit for KTM 250 XC TPI 2023-2025 RMS-8913096

    Rekluse RadiusCX 4.0 Clutch Kit for KTM 250 XC TPI 2023-2025 RMS-8913096

    REKLUSE

    $1,499.00
    If you're running your KTM 250 XC TPI hard in competitive or high-heat environments, clutch fade and inconsistent engagement will cost you lap time and reliability. The Rekluse RadiusCX 4.0 addresses these issues with a complete redesign of the friction...
    11300820
    SKU:
    11300820
    Availability:
    Ships Same Business Day
    Weight:
    4.55 LBS
    RIDING STYLE:
    STREET
    MODEL:
    RADIUSCX 4.0
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    $1,499.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,499.00
    Subtotal:
  • Rekluse RadiusCX 4.0 Clutch Kit for 2023-2025 KTM 250 EXC-F RMS-8913292 Rekluse RadiusCX 4.0 Clutch Kit for 2023-2025 KTM 250 EXC-F RMS-8913292

    Rekluse RadiusCX 4.0 Clutch Kit for 2023-2025 KTM 250 EXC-F RMS-8913292

    REKLUSE

    $1,499.00
    The Rekluse RadiusCX 4.0 Clutch delivers immediate, predictable engagement that translates to faster lap times and reduced fatigue during enduro and cross-country racing. Its upgraded EXP assembly and redesigned internal geometry provide the responsive...
    11300830
    SKU:
    11300830
    Availability:
    Ships Same Business Day
    Weight:
    4.34 LBS
    MODEL:
    RADIUSCX 4.0
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    $1,499.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,499.00
    Subtotal:
  • DP BRAKES DPK Clutch Kit - KX 450 F DPK264 DP BRAKES DPK Clutch Kit - KX 450 F DPK264

    DP BRAKES DPK Clutch Kit - KX 450 F DPK264

    DP BRAKES

    $223.95
    A worn or degraded clutch directly impacts your KX 450 F's power delivery, throttle response, and overall rideability—especially under aggressive riding conditions. The DP Brakes DPK Clutch Kit delivers a complete friction and steel plate assembly...
    11313908
    SKU:
    11313908
    Availability:
    Ships Same Business Day
    Weight:
    2.35 LBS
    UNITS:
    KIT
    MODEL:
    DPK SERIES
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    $223.95
    Qty in Cart: 0
    Quantity:
    Price:
    $223.95
    Subtotal:
  • MOOSE RACING Pro Chain Guard - Kawasaki PX1676 MOOSE RACING Pro Chain Guard - Kawasaki PX1676

    MOOSE RACING Pro Chain Guard - Kawasaki PX1676

    MOOSE RACING

    $99.95
    A chain guard isn't just cosmetic protection—it's essential insurance against debris, mud, and impact damage that can compromise your chain's lifespan and performance. The MOOSE RACING Pro Chain Guard for Kawasaki delivers OEM-quality fitment with...
    12311664
    SKU:
    12311664
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $99.95
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  • ACERBIS Chain Guide Replacement Insert - KTM - Black 2983190001

    ACERBIS Chain Guide Replacement Insert - KTM - Black 2983190001

    ACERBIS

    $25.95
    Chain wear is one of the fastest ways to degrade drivetrain performance and reliability—and a worn chain guide accelerates that damage exponentially. The ACERBIS Chain Guide Replacement Insert for KTM delivers proven durability with high-resistance...
    12311705
    SKU:
    12311705
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    $25.95
    Qty in Cart: 0
    Quantity:
    Price:
    $25.95
    Subtotal:
  • ACERBIS Chain Guide - Yamaha - Black 2981490001

    ACERBIS Chain Guide - Yamaha - Black 2981490001

    ACERBIS

    $76.95
    A quality chain guide protects your sprocket system from wear, misalignment, and premature failure—critical for maintaining consistent power delivery on the track or trail. ACERBIS chain guides are engineered to reduce lateral chain movement and prevent...
    12311706
    SKU:
    12311706
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $76.95
    Qty in Cart: 0
    Quantity:
    Price:
    $76.95
    Subtotal:
  • ACERBIS Chain Guide - Yamaha - Blue 2981490003

    ACERBIS Chain Guide - Yamaha - Blue 2981490003

    ACERBIS

    $76.95
    A chain guide protects your drivetrain from lateral movement and impact during aggressive riding, reducing wear on your sprockets and chain while maintaining consistent power delivery. ACERBIS engineered this guide specifically for Yamaha applications,...
    12311707
    SKU:
    12311707
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    $76.95
    Qty in Cart: 0
    Quantity:
    Price:
    $76.95
    Subtotal:
  • ACERBIS Chain Guide - Gas-Gas/Husqvarna - Black 2981880001

    ACERBIS Chain Guide - Gas-Gas/Husqvarna - Black 2981880001

    ACERBIS

    $32.95
    A quality chain guide is essential for protecting your sprocket, chain, and frame from premature wear and damage during aggressive riding conditions. The ACERBIS Chain Guide delivers reliable coverage with a proven design that keeps your drivetrain...
    12311709
    SKU:
    12311709
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    $32.95
    Qty in Cart: 0
    Quantity:
    Price:
    $32.95
    Subtotal:
  • ACERBIS Chain Guide and Slider Kit - KTM/Husqvarna - Orange 2981435226 ACERBIS Chain Guide and Slider Kit - KTM/Husqvarna - Orange 2981435226

    ACERBIS Chain Guide and Slider Kit - KTM/Husqvarna - Orange 2981435226

    ACERBIS

    $99.95
    Chain wear and misalignment are primary culprits behind premature drivetrain failure on KTM and Husqvarna dirt bikes. The ACERBIS Chain Guide and Slider Kit addresses both issues with a durable two-piece design that installs without breaking down your...
    12311711
    SKU:
    12311711
    Availability:
    Ships Same Business Day
    Weight:
    1.64 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    Subtotal:
  • ACERBIS Chain Guide Replacement Insert - KTM - Blue 2983190003

    ACERBIS Chain Guide Replacement Insert - KTM - Blue 2983190003

    ACERBIS

    $25.95
    Your chain guide is the frontline defense against wear, noise, and premature sprocket degradation. The ACERBIS Replacement Insert is engineered to absorb impact from chain articulation while maintaining low friction, extending the service life of your...
    12311713
    SKU:
    12311713
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    $25.95
    Qty in Cart: 0
    Quantity:
    Price:
    $25.95
    Subtotal:
  • ACERBIS Chain Guide Replacement Insert - KTM - Orange 2983195226

    ACERBIS Chain Guide Replacement Insert - KTM - Orange 2983195226

    ACERBIS

    $25.95
    Chain guide wear directly impacts drivetrain efficiency and can lead to costly chain replacements if left unaddressed. The ACERBIS Chain Guide Replacement Insert is engineered to absorb shock loads and resist abrasion, extending the service life of your...
    12311714
    SKU:
    12311714
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    $25.95
    Qty in Cart: 0
    Quantity:
    Price:
    $25.95
    Subtotal:
  • ACERBIS Chain Guide Replacement Insert - KTM - Red 2983190004

    ACERBIS Chain Guide Replacement Insert - KTM - Red 2983190004

    ACERBIS

    $25.95
    A worn chain guide insert compromises both drivetrain efficiency and component longevity on your KTM. This ACERBIS replacement insert restores proper chain alignment and dampening, protecting your sprockets and chain from accelerated wear during...
    12311715
    SKU:
    12311715
    Availability:
    Ships Same Business Day
    Weight:
    0.17 LBS
    $25.95
    Qty in Cart: 0
    Quantity:
    Price:
    $25.95
    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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