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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 RACING Kickstarter 80-0564-00-60

    MOOSE RACING Kickstarter 80-0564-00-60

    MOOSE RACING

    $184.79
    A reliable kickstarter bracket is foundational to any dependable engine setup—corrosion and wear compromise both performance and safety. The MOOSE RACING Kickstarter bracket delivers OEM-equivalent durability with enhanced corrosion resistance, ensuring...
    11120113
    SKU:
    11120113
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    PRODUCT NAME:
    KICKSTARTER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    6061 ALUMINUM
    $184.79
    Qty in Cart: 0
    Quantity:
    Price:
    $184.79
    Subtotal:
  • MOOSE RACING Kickstarter 80-0220-00-60

    MOOSE RACING Kickstarter 80-0220-00-60

    MOOSE RACING

    $184.79
    A quality kickstarter bracket is foundational to reliable engine starting, and this MOOSE RACING unit delivers the durability your build demands. The hardened CNC-machined construction resists the repeated stress cycles that softer brackets can't handle,...
    11120115
    SKU:
    11120115
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    PRODUCT NAME:
    KICKSTARTER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    6061 ALUMINUM
    $184.79
    Qty in Cart: 0
    Quantity:
    Price:
    $184.79
    Subtotal:
  • MOOSE RACING Pro Chain Guide - Yamaha - Black PX1383

    MOOSE RACING Pro Chain Guide - Yamaha - Black PX1383

    MOOSE RACING

    $92.95
    Chain slap and lateral movement waste energy and accelerate wear on your sprockets and frame—the MOOSE RACING Pro Chain Guide eliminates both with precision engineering. This two-piece design mounts quickly without breaking down your drivetrain, letting...
    12310802
    SKU:
    12310802
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    UNITS:
    EACH
    MOUNTING POSITION:
    LOWER
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    BLACK
    MATERIAL:
    POLYETHYLENE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $92.95
    Qty in Cart: 0
    Quantity:
    Price:
    $92.95
    Subtotal:
  • MOOSE RACING Pro Chain Guide - Honda - Black PX1384

    MOOSE RACING Pro Chain Guide - Honda - Black PX1384

    MOOSE RACING

    $92.95
    A worn or damaged chain guide compromises power transfer and accelerates drivetrain wear—especially critical in high-RPM applications where chain slap can cause catastrophic failure. The MOOSE RACING Pro Chain Guide eliminates lateral chain movement,...
    12310803
    SKU:
    12310803
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    COLOR/FINISH:
    BLACK
    MATERIAL:
    POLYETHYLENE
    MOUNTING POSITION:
    LOWER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $92.95
    Qty in Cart: 0
    Quantity:
    Price:
    $92.95
    Subtotal:
  • MOOSE RACING Aluminum Chain Guide - Yamaha 01-021CG

    MOOSE RACING Aluminum Chain Guide - Yamaha 01-021CG

    MOOSE RACING

    $53.95
    Stock chain guides are vulnerable to impact damage on aggressive terrain, leaving you stranded with a bent or broken part. The MOOSE RACING Aluminum Chain Guide replaces that weak point with aircraft-grade aluminum construction that absorbs hits from...
    12310430
    SKU:
    12310430
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    MATERIAL:
    AIRCRAFT ALUMINUM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    TYPE:
    DRIVE CHAIN
    UNITS:
    EACH
    PRODUCT NAME:
    CHAIN GUIDE
    RIDING STYLE:
    OFF-ROAD
    $53.95
    Qty in Cart: 0
    Quantity:
    Price:
    $53.95
    Subtotal:
  • MOOSE RACING Clutch Basket M027

    MOOSE RACING Clutch Basket M027

    MOOSE RACING

    $212.95
    If you're experiencing clutch drag, excessive heat buildup, or inconsistent engagement, your basket is likely the culprit. The MOOSE RACING M027 combines precision engineering with superior materials to eliminate these problems, delivering reliable...
    11320021
    SKU:
    11320021
    Availability:
    Ships Same Business Day
    Weight:
    1.12 LBS
    MATERIAL:
    6061 AIRCRAFT-GRADE ALUMINUM ALLOY
    PRODUCT NAME:
    CLUTCH BASKET
    UNITS:
    EACH
    COLOR/FINISH:
    ANODIZED
    RIDING STYLE:
    OFF-ROAD
    $212.95
    Qty in Cart: 0
    Quantity:
    Price:
    $212.95
    Subtotal:
  • MOOSE RACING Clutch Basket M049

    MOOSE RACING Clutch Basket M049

    MOOSE RACING

    $185.95
    The MOOSE RACING Clutch Basket M049 is engineered to reduce heat generation and improve clutch engagement reliability—critical factors when you're pushing your machine to the limit. Built from billet T-6 aircraft-grade aluminum and hard anodized for...
    11320024
    SKU:
    11320024
    Availability:
    Ships Same Business Day
    Weight:
    0.93 LBS
    COLOR/FINISH:
    ANODIZED
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    6061 AIRCRAFT-GRADE ALUMINUM ALLOY
    PRODUCT NAME:
    CLUTCH BASKET
    $185.95
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • MOOSE RACING Clutch Basket M089

    MOOSE RACING Clutch Basket M089

    MOOSE RACING

    $185.95
    If you're running a high-performance clutch system, your basket is doing the heavy lifting—literally. The MOOSE RACING Clutch Basket M089 is engineered to reduce heat buildup and improve engagement consistency by maintaining true spindle alignment, which...
    11320037
    SKU:
    11320037
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    ANODIZED
    UNITS:
    EACH
    MATERIAL:
    6061 AIRCRAFT-GRADE ALUMINUM ALLOY
    PRODUCT NAME:
    CLUTCH BASKET
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • MOOSE RACING Clutch Basket M159

    MOOSE RACING Clutch Basket M159

    MOOSE RACING

    $185.95
    If you're running a high-RPM clutch system, your basket is working harder than most people realize—and a worn or poorly designed one will cost you power through heat generation and runout. The MOOSE RACING M159 is precision-engineered to spin true and...
    11320045
    SKU:
    11320045
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    PRODUCT NAME:
    CLUTCH BASKET
    MATERIAL:
    6061 AIRCRAFT-GRADE ALUMINUM ALLOY
    COLOR/FINISH:
    ANODIZED
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $185.95
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • VESRAH Clutch Discs VC-190

    VESRAH Clutch Discs VC-190

    VESRAH

    $45.33
    Clutch slip and degraded engagement directly compromise your power delivery on track and street. Vesrah clutch discs VC-190 deliver consistent friction material and precise OEM-spec tolerances to restore crisp engagement and reliable holding power...
    VC190
    SKU:
    VC190
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    FRICTION PLATE MATERIAL:
    CORK
    PRODUCT NAME:
    FRICTION PLATE SET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    UNITS:
    SET OF 6
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH
    Qty in Cart: 0
    Quantity:
    Price:
    $45.33
    Subtotal:
  • VESRAH Clutch Discs VC-235

    VESRAH Clutch Discs VC-235

    VESRAH

    $57.00
    Clutch disc wear is inevitable, but choosing the right replacement directly impacts your vehicle's shift quality and power transfer efficiency. VESRAH Clutch Discs VC-235 deliver OEM-equivalent performance with premium friction materials engineered to...
    VC235
    SKU:
    VC235
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    TYPE:
    CLUTCH
    RIDING STYLE:
    OFF-ROAD
    FRICTION PLATE MATERIAL:
    CORK
    PRODUCT NAME:
    FRICTION PLATE SET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    SET OF 6
    Qty in Cart: 0
    Quantity:
    Price:
    $57.00
    Subtotal:
  • VESRAH Clutch Discs VC-266

    VESRAH Clutch Discs VC-266

    VESRAH

    $33.83
    Clutch performance directly impacts your bike's acceleration, shifting response, and overall reliability on track or street. The VESRAH VC-266 Clutch Discs deliver OEM-grade friction material and precise engineering to restore full engagement without...
    VC266
    SKU:
    VC266
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    UNITS:
    SET OF 5
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    FRICTION PLATE MATERIAL:
    CORK
    PRODUCT NAME:
    FRICTION PLATE SET
    RIDING STYLE:
    ATV
    TYPE:
    CLUTCH
    $33.83
    Qty in Cart: 0
    Quantity:
    Price:
    $33.83
    Subtotal:
  • VESRAH Clutch Discs VC-281

    VESRAH Clutch Discs VC-281

    VESRAH

    $66.83
    Clutch wear directly impacts throttle response and power delivery, making quality friction plates essential for maintaining consistent performance. VESRAH Clutch Discs VC-281 meet or exceed OEM specifications, delivering reliable engagement without the...
    VC281
    SKU:
    VC281
    Availability:
    Ships Same Business Day
    Weight:
    0.64 LBS
    RIDING STYLE:
    STREET
    RIDING STYLE:
    OFF-ROAD
    FRICTION PLATE MATERIAL:
    CORK
    PRODUCT NAME:
    FRICTION PLATE SET
    TYPE:
    CLUTCH
    UNITS:
    SET OF 7
    $66.83
    Qty in Cart: 0
    Quantity:
    Price:
    $66.83
    Subtotal:
  • PARTS UNLIMITED Countershaft Sprocket - 15-Tooth 214-17461-50

    PARTS UNLIMITED Countershaft Sprocket - 15-Tooth 214-17461-50

    PARTS UNLIMITED

    $12.19
    A worn or damaged countershaft sprocket directly impacts your power delivery and clutch engagement consistency. This OEM-spec replacement restores precise chain meshing and eliminates the slack, slippage, and premature wear that comes with degraded teeth...
    K222626
    SKU:
    K222626
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    CHAIN SIZE:
    520
    COLOR/FINISH:
    RAW
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    15
    $12.19
    Qty in Cart: 0
    Quantity:
    Price:
    $12.19
    Subtotal:
  • PARTS UNLIMITED Countershaft Sprocket - 12-Tooth 517-17461-20

    PARTS UNLIMITED Countershaft Sprocket - 12-Tooth 517-17461-20

    PARTS UNLIMITED

    $5.05
    A worn or damaged countershaft sprocket directly compromises your drivetrain efficiency and throttle response. This OEM-spec replacement restores precise chain engagement and eliminates the performance loss that comes with worn teeth or damaged splines...
    K222654
    SKU:
    K222654
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    COLOR/FINISH:
    RAW
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    MATERIAL:
    STEEL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    CHAIN SIZE:
    428
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    OFF-ROAD
    TOOTH COUNT:
    12
    Qty in Cart: 0
    Quantity:
    Price:
    $5.05
    Subtotal:
  • PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 517-17461-31

    PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 517-17461-31

    PARTS UNLIMITED

    $7.09
    A worn or damaged countershaft sprocket compromises power delivery to your rear wheel and accelerates wear on your chain and driven sprocket. This PARTS UNLIMITED replacement restores precise engagement and smooth power transfer by matching OEM...
    K222658
    SKU:
    K222658
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    TOOTH COUNT:
    13
    CHAIN SIZE:
    420
    COLOR/FINISH:
    RAW
    MOUNTING POSITION:
    FRONT
    PRODUCT NAME:
    SPROCKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COUNTERSHAFT
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    $7.09
    Qty in Cart: 0
    Quantity:
    Price:
    $7.09
    Subtotal:
  • PARTS UNLIMITED Rear Yamaha Sprocket - 54 Tooth 5HP-25454-20-54

    PARTS UNLIMITED Rear Yamaha Sprocket - 54 Tooth 5HP-25454-20-54

    PARTS UNLIMITED

    $31.57
    A worn or damaged rear sprocket directly impacts your power delivery, throttle response, and overall drivetrain efficiency. This OEM-spec replacement restores your Yamaha to factory performance standards without compromise. Whether you're running a...
    12100032
    SKU:
    12100032
    Availability:
    Ships Same Business Day
    Weight:
    2.25 LBS
    CHAIN SIZE:
    428
    UNITS:
    EACH
    MOUNTING POSITION:
    REAR
    TOOTH COUNT:
    54
    TYPE:
    DRIVE
    PRODUCT NAME:
    SPROCKET
    COLOR/FINISH:
    BLACK
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    $31.57
    Qty in Cart: 0
    Quantity:
    Price:
    $31.57
    Subtotal:
  • PARTS UNLIMITED Rear Yamaha Sprocket - 49 Tooth 5FC-25449-20-49

    PARTS UNLIMITED Rear Yamaha Sprocket - 49 Tooth 5FC-25449-20-49

    PARTS UNLIMITED

    $25.45
    A worn or damaged sprocket directly impacts chain wear, power delivery, and overall drivetrain efficiency on your Yamaha. The PARTS UNLIMITED Rear Sprocket ensures OEM-matching performance with precision-machined teeth that work seamlessly with your...
    12100033
    SKU:
    12100033
    Availability:
    Ships Same Business Day
    Weight:
    1.55 LBS
    PRODUCT NAME:
    SPROCKET
    TOOTH COUNT:
    49
    MOUNTING POSITION:
    REAR
    TYPE:
    DRIVE
    CHAIN SIZE:
    428
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    $25.45
    Qty in Cart: 0
    Quantity:
    Price:
    $25.45
    Subtotal:
  • MOOSE RACING 428 RXP Pro-MX Chain - Gold - 110 Links M575-00-110

    MOOSE RACING 428 RXP Pro-MX Chain - Gold - 110 Links M575-00-110

    MOOSE RACING

    $39.95
    If you're running a high-powered mini racing machine, your chain is only as reliable as its weakest link—and this one won't let you down. The MOOSE RACING 428 RXP Pro-MX is engineered specifically for the punishing demands of 80-125cc racing...
    M57500110
    SKU:
    M57500110
    Availability:
    Ships Same Business Day
    Weight:
    2.20 LBS
    COLOR/FINISH:
    GOLD
    MASTER LINK CONNECTOR:
    CLIP
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    125 CC
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SEAL TYPE:
    NON-SEAL
    CHAIN TYPE:
    428 RXP
    MODEL:
    RXP SERIES
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    TENSILE STRENGTH IMPERIAL:
    5071 LB
    CHAIN SIZE:
    428
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    125 CC
    TENSILE STRENGTH METRIC:
    22.6 KN
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • MOOSE RACING 428 RXP Pro-MX Chain - Gold - 114 Links M575-00-114

    MOOSE RACING 428 RXP Pro-MX Chain - Gold - 114 Links M575-00-114

    MOOSE RACING

    $40.95
    If you're running a high-powered mini racing machine, your chain needs to match the demands of consistent acceleration, high RPM transitions, and aggressive track conditions. The MOOSE RACING 428 RXP Pro-MX Chain delivers the strength and reliability...
    M57500114
    SKU:
    M57500114
    Availability:
    Ships Same Business Day
    Weight:
    2.20 LBS
    MODEL:
    RXP SERIES
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    125 CC
    PRODUCT NAME:
    DRIVE CHAIN
    CHAIN SIZE:
    428
    COLOR/FINISH:
    GOLD
    MASTER LINK CONNECTOR:
    CLIP
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    125 CC
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SEAL TYPE:
    NON-SEAL
    TENSILE STRENGTH METRIC:
    22.6 KN
    CHAIN TYPE:
    428 RXP
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TENSILE STRENGTH IMPERIAL:
    5071 LB
    UNITS:
    EACH
    $40.95
    Qty in Cart: 0
    Quantity:
    Price:
    $40.95
    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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