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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
  • UFO Chain Slider - Yamaha YZ250F/450F WR250F/450F - Black YA04806-001

    UFO Chain Slider - Yamaha YZ250F/450F WR250F/450F - Black YA04806-001

    UFO

    $19.95
    Chain wear on your swingarm isn't just a cosmetic issue—it's progressive damage that compromises structural integrity and accelerates component failure. The UFO Chain Slider shields your swingarm from abrasive chain contact, extending the service life of...
    12310202
    SKU:
    12310202
    Availability:
    Ships Same Business Day
    Weight:
    0.36 LBS
    MATERIAL:
    PLASTIC
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    CHAIN SLIDER
    COLOR/FINISH:
    BLACK
    TYPE:
    SWINGARM
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • DID 520 DZ - Connecting Link - Clip 520DZ2-RJ

    DID 520 DZ - Connecting Link - Clip 520DZ2-RJ

    DID

    $3.23
    A worn or damaged connecting link can compromise your entire drivetrain's integrity, leading to chain failure at the worst possible moment. The DID 520 DZ Connecting Link delivers the durability and precision fit you need to maintain consistent power...
    12250162
    SKU:
    12250162
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    CHAIN TYPE:
    520 DZ
    TYPE:
    CLIP
    COLOR/FINISH:
    GOLD
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    CONNECTING LINK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $3.23
    Qty in Cart: 0
    Quantity:
    Price:
    $3.23
    Subtotal:
  • DID 520 DZ - Connecting Link - Rivet 520DZ2-ZJ

    DID 520 DZ - Connecting Link - Rivet 520DZ2-ZJ

    DID

    $3.23
    A worn or damaged connecting link compromises your entire chain's integrity, risking power loss, premature wear, and catastrophic failure at high RPM. The DID 520 DZ connecting link restores full load-carrying capacity with factory-spec dimensions and...
    12250161
    SKU:
    12250161
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    CONNECTING LINK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    TYPE:
    RIVET
    COLOR/FINISH:
    GOLD
    RIDING STYLE:
    OFF-ROAD
    CHAIN TYPE:
    520 DZ
    $3.23
    Qty in Cart: 0
    Quantity:
    Price:
    $3.23
    Subtotal:
  • JT SPROCKETS Rear Sprocket - Kawasaki - Black - 50 Tooth JTA460.50BLK

    JT SPROCKETS Rear Sprocket - Kawasaki - Black - 50 Tooth JTA460.50BLK

    JT SPROCKETS

    $40.35
    A rear sprocket is critical to your bike's acceleration, top-end speed, and overall drivetrain efficiency—choosing the wrong tooth count directly impacts power delivery and engine longevity. The JT Sprockets 50-tooth rear sprocket delivers...
    12112654
    SKU:
    12112654
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    TYPE:
    DRIVE
    UNITS:
    EACH
    MATERIAL:
    7075-T6 ALUMINUM
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    50
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    MOUNTING POSITION:
    REAR
    $40.35
    Qty in Cart: 0
    Quantity:
    Price:
    $40.35
    Subtotal:
  • JT SPROCKETS Rear Race Sprocket - 45-Tooth JTR897.45SC

    JT SPROCKETS Rear Race Sprocket - 45-Tooth JTR897.45SC

    JT SPROCKETS

    $29.55
    A lightweight rear sprocket is one of the most effective upgrades for improving acceleration and reducing rotating mass in your drivetrain. The JT Sprockets 45-tooth rear sprocket delivers computer-optimized tooth geometry and premium material...
    12102473
    SKU:
    12102473
    Availability:
    Ships Same Business Day
    Weight:
    0.62 LBS
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    TOOTH COUNT:
    45
    UNITS:
    EACH
    MATERIAL:
    C49 HIGH CARBON STEEL
    $29.55
    Qty in Cart: 0
    Quantity:
    Price:
    $29.55
    Subtotal:
  • JT SPROCKETS Rear Race Sprocket - 40-Tooth JTR897.40SC

    JT SPROCKETS Rear Race Sprocket - 40-Tooth JTR897.40SC

    JT SPROCKETS

    $29.55
    If you're serious about reducing un-sprung weight and improving acceleration response, a lightweight rear sprocket is one of the highest-ROI upgrades you can make. The JT Sprockets 40-tooth rear sprocket delivers measurable performance gains through...
    12102472
    SKU:
    12102472
    Availability:
    Ships Same Business Day
    Weight:
    0.58 LBS
    TOOTH COUNT:
    40
    CHAIN SIZE:
    520
    RIDING STYLE:
    STREET
    MATERIAL:
    C49 HIGH CARBON STEEL
    UNITS:
    EACH
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    $29.55
    Qty in Cart: 0
    Quantity:
    Price:
    $29.55
    Subtotal:
  • JT SPROCKETS Rear Race Sprocket - 42-Tooth JTR897.42SC

    JT SPROCKETS Rear Race Sprocket - 42-Tooth JTR897.42SC

    JT SPROCKETS

    $29.55
    Reducing unsprung rotating weight is one of the most effective ways to improve acceleration and handling response, and the JT Sprockets 42-Tooth Rear Race Sprocket delivers exactly that. This Austrian 7075 T-6 aluminum sprocket weighs approximately 30%...
    12102461
    SKU:
    12102461
    Availability:
    Ships Same Business Day
    Weight:
    0.54 LBS
    CHAIN SIZE:
    520
    MOUNTING POSITION:
    REAR
    PRODUCT NAME:
    SPROCKET
    MATERIAL:
    C49 HIGH CARBON STEEL
    TOOTH COUNT:
    42
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    $29.55
    Qty in Cart: 0
    Quantity:
    Price:
    $29.55
    Subtotal:
  • SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-1512-50-BLK

    SUPERSPROX Steel Rear Sprocket - 50-Tooth RFE-1512-50-BLK

    SUPERSPROX

    $59.95
    A sprocket is your drivetrain's critical link between engine power and wheel acceleration—choose poorly, and you're left with premature wear, inconsistent power delivery, and costly replacements. The SUPERSPROX 50-tooth rear sprocket delivers race-proven...
    12101878
    SKU:
    12101878
    Availability:
    Ships Same Business Day
    Weight:
    1.90 LBS
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    REAR
    MATERIAL:
    STEEL
    PRODUCT NAME:
    SPROCKET
    TOOTH COUNT:
    50
    UNITS:
    EACH
    MOUNTING POSITION:
    REAR
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $59.95
    Subtotal:
  • Rekluse TorqDrive Clutch Pack Kawasaki KX250F 2021 RMS-2804140

    Rekluse TorqDrive Clutch Pack Kawasaki KX250F 2021 RMS-2804140

    REKLUSE

    $429.00
    Stock clutch packs on the KX250F '21 leave power on the table and force you to work harder in the saddle. The Rekluse TorqDrive Clutch Pack delivers a measurable 25% increase in torque capacity while reducing lever pull effort by 10%—giving you stronger...
    11313653
    SKU:
    11313653
    Availability:
    Ships Same Business Day
    Weight:
    2.60 LBS
    PRODUCT NAME:
    CLUTCH PACK
    UNITS:
    PACK
    MODEL:
    TORQDRIVE®
    RIDING STYLE:
    OFF-ROAD
    $429.00
    Qty in Cart: 0
    Quantity:
    Price:
    $429.00
    Subtotal:
  • Rekluse TorqDrive Clutch Pack for 2016 Husqvarna TE125 RMS-2813037

    Rekluse TorqDrive Clutch Pack for 2016 Husqvarna TE125 RMS-2813037

    REKLUSE

    $409.00
    If you're running a 2016 Husqvarna TE125 and want measurable gains in clutch response without engine work, the Rekluse TorqDrive delivers exactly that. With 25% more torque capacity and notably reduced lever effort, this clutch pack transforms your...
    11313652
    SKU:
    11313652
    Availability:
    Ships Same Business Day
    Weight:
    2.80 LBS
    UNITS:
    PACK
    PRODUCT NAME:
    CLUTCH PACK
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    TORQDRIVE®
    Qty in Cart: 0
    Quantity:
    Price:
    $409.00
    Subtotal:
  • EBC Clutch Set CKF1314

    EBC Clutch Set CKF1314

    EBC

    $121.52
    The EBC Clutch Set CKF1314 delivers the durability and heat resistance needed for aggressive riding and demanding track conditions. Carbon-fiber impregnated friction plates provide superior engagement characteristics while resisting fade, giving you...
    11313189
    SKU:
    11313189
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    FRICTION PLATE SET
    TYPE:
    CLUTCH
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    $121.52
    Qty in Cart: 0
    Quantity:
    Price:
    $121.52
    Subtotal:
  • EBC Clutch Kit CK5612

    EBC Clutch Kit CK5612

    EBC

    $163.43
    The EBC Clutch Kit CK5612 delivers the friction plate durability you need for spirited street riding and track days without constant replacement cycles. Cork-based material impregnated with aluminum particles resists wear and thermal stress far better...
    11312081
    SKU:
    11312081
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    UNITS:
    SET
    RIDING STYLE:
    STREET
    TYPE:
    FRICTION PLATE SET
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    CK SERIES
    $163.43
    Qty in Cart: 0
    Quantity:
    Price:
    $163.43
    Subtotal:
  • EBC Clutch Kit CK2370

    EBC Clutch Kit CK2370

    EBC

    $50.64
    A worn clutch compromises your bike's power delivery and reliability—whether you're commuting, carving canyon roads, or pushing harder on track days. The EBC Clutch Kit CK2370 delivers consistent engagement and extended service life through cork-based...
    11312079
    SKU:
    11312079
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    UNITS:
    SET
    TYPE:
    FRICTION PLATE SET
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    $50.64
    Qty in Cart: 0
    Quantity:
    Price:
    $50.64
    Subtotal:
  • BARNETT Clutch Kit 303-90-10064

    BARNETT Clutch Kit 303-90-10064

    BARNETT

    $287.87
    A quality clutch system is foundational to any high-performance build—it's the critical link between your engine's power output and reliable power delivery to the wheels. The BARNETT Clutch Kit 303-90-10064 delivers the friction control and durability...
    11310631
    SKU:
    11310631
    Availability:
    Ships Same Business Day
    Weight:
    2.05 LBS
    FRICTION PLATE MATERIAL:
    DUPONT™ KEVLAR®
    DRIVE PLATE MATERIAL:
    STEEL
    UNITS:
    KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    MODEL:
    DIRT DIGGER
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    Qty in Cart: 0
    Quantity:
    Price:
    $287.87
    Subtotal:
  • BARNETT Clutch Kit 303-70-10045

    BARNETT Clutch Kit 303-70-10045

    BARNETT

    $250.95
    A reliable clutch is non-negotiable for consistent power delivery and longevity, especially under racing conditions or high-demand riding. The BARNETT 303-70-10045 delivers smooth engagement and proven durability with OEM-quality construction at a...
    11310630
    SKU:
    11310630
    Availability:
    Ships Same Business Day
    Weight:
    2.05 LBS
    DRIVE PLATE MATERIAL:
    STEEL
    UNITS:
    KIT
    FRICTION PLATE MATERIAL:
    DUPONT™ KEVLAR®
    MODEL:
    DIRT DIGGER
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    $250.95
    Qty in Cart: 0
    Quantity:
    Price:
    $250.95
    Subtotal:
  • BARNETT Clutch Kit 303-45-10004

    BARNETT Clutch Kit 303-45-10004

    BARNETT

    $166.08
    A reliable clutch is fundamental to consistent power delivery and longevity in high-performance applications. The BARNETT Clutch Kit 303-45-10004 delivers the friction consistency and durability demanded by serious racers and enthusiasts who refuse...
    11310629
    SKU:
    11310629
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    DRIVE PLATE MATERIAL:
    STEEL
    UNITS:
    KIT
    FRICTION PLATE MATERIAL:
    DUPONT™ KEVLAR®
    MODEL:
    DIRT DIGGER
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    $166.08
    Qty in Cart: 0
    Quantity:
    Price:
    $166.08
    Subtotal:
  • BARNETT Clutch Kit 303-70-10051

    BARNETT Clutch Kit 303-70-10051

    BARNETT

    $250.95
    A reliable clutch is the foundation of consistent power transfer and controlled engagement, whether you're launching on the strip or managing heavy loads in demanding conditions. The BARNETT Clutch Kit 303-70-10051 delivers the friction and durability...
    11310307
    SKU:
    11310307
    Availability:
    Ships Same Business Day
    Weight:
    2.30 LBS
    DRIVE PLATE MATERIAL:
    STEEL
    MODEL:
    DIRT DIGGER
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    FRICTION PLATE MATERIAL:
    DUPONT™ KEVLAR®
    $250.95
    Qty in Cart: 0
    Quantity:
    Price:
    $250.95
    Subtotal:
  • DP BRAKES Clutch Kit DPK193

    DP BRAKES Clutch Kit DPK193

    DP BRAKES

    $275.95
    Stock clutch plates fade under sustained heat and can't handle the demands of aggressive riding or racing. The DP BRAKES DPK193 replaces worn friction and steel plates with precision-engineered components designed for fade-free performance, better...
    11310305
    SKU:
    11310305
    Availability:
    Ships Same Business Day
    Weight:
    1.16 LBS
    PRODUCT NAME:
    CLUTCH KIT
    TYPE:
    COMPLETE
    UNITS:
    SET
    DRIVE PLATE MATERIAL:
    STEEL
    MODEL:
    DPK SERIES
    RIDING STYLE:
    OFF-ROAD
    SPRING MATERIAL:
    CHROME SILICON
    Qty in Cart: 0
    Quantity:
    Price:
    $275.95
    Subtotal:
  • BARNETT Clutch Kit 303-35-20029

    BARNETT Clutch Kit 303-35-20029

    BARNETT

    $245.43
    A reliable clutch is non-negotiable for consistent power delivery and longevity, especially when you're pushing your machine to the limit. The BARNETT Clutch Kit 303-35-20029 delivers OEM-quality engagement with premium friction and steel plates designed...
    11310194
    SKU:
    11310194
    Availability:
    Ships Same Business Day
    Weight:
    1.71 LBS
    MODEL:
    DIRT DIGGER
    DRIVE PLATE MATERIAL:
    STEEL
    FRICTION PLATE MATERIAL:
    CARBON FIBER
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    Qty in Cart: 0
    Quantity:
    Price:
    $245.43
    Subtotal:
  • BARNETT Clutch Spring Kit 501-34-05122

    BARNETT Clutch Spring Kit 501-34-05122

    BARNETT

    $26.29
    A worn or inconsistent clutch engagement directly impacts your launch consistency and overall drivetrain reliability. The BARNETT Clutch Spring Kit 501-34-05122 delivers the heavy-duty spring pressure your transmission demands, ensuring predictable...
    11310193
    SKU:
    11310193
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    SPRING MATERIAL:
    STEEL
    PRODUCT NAME:
    SPRING SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH
    UNITS:
    SET OF 5
    $26.29
    Qty in Cart: 0
    Quantity:
    Price:
    $26.29
    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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