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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
  • On Sale
    Pro Circuit Clutch Springs Yamaha YZ250F 2019-2021 CSY19250-CS

    Pro Circuit Clutch Springs Yamaha YZ250F 2019-2021 CSY19250-CS

    PRO CIRCUIT

    MSRP: $83.95
    Now: $73.88
    Was: $83.95
    Enhance your bike's performance with the PRO CIRCUIT Clutch Springs CSY19250-CS, designed to provide a more robust and reliable clutch engagement. With a stiffness increase of 12-15% over stock springs, these clutch springs minimize slipping and ensure...
    11313380
    SKU:
    11313380
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH
    PRODUCT NAME:
    SPRING SET
    UNITS:
    SET
    MSRP: $83.95
    Now: $73.88
    Was: $83.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $83.95
    Now: $73.88
    Was: $83.95
    Subtotal:
  • On Sale
    Pro Circuit Axle Blocks Honda CRF250R 2004-2008 Red HAB00

    Pro Circuit Axle Blocks Honda CRF250R 2004-2008 Red HAB00

    PRO CIRCUIT

    MSRP: $59.95
    Now: $52.76
    Was: $59.95
    Enhance your riding experience with the PRO CIRCUIT Axle Blocks designed specifically for the CRF250R/X and CRF450R/X models. These precision-engineered axle blocks not only aid in rear wheel alignment for improved high-speed stability but also...
    HAB00
    SKU:
    HAB00
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    COLOR/FINISH:
    RED
    PRODUCT NAME:
    AXLE BLOCK
    MATERIAL:
    BILLET ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    COLOR/FINISH:
    ANODIZED
    MSRP: $59.95
    Now: $52.76
    Was: $59.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $59.95
    Now: $52.76
    Was: $59.95
    Subtotal:
  • On Sale
    Pro Circuit Axle Blocks Brown KX125 250 250F 450F RM-Z250 KAB03

    Pro Circuit Axle Blocks Brown KX125 250 250F 450F RM-Z250 KAB03

    PRO CIRCUIT

    MSRP: $59.95
    Now: $52.76
    Was: $59.95
    Enhance your motorcycle's performance with the PRO CIRCUIT Axle Blocks designed specifically for KX and RM-Z models. Engineered for precision, these axle blocks not only aid in rear wheel alignment but also significantly improve high-speed stability,...
    12310268
    SKU:
    12310268
    Availability:
    Ships Same Business Day
    Weight:
    0.26 LBS
    COLOR/FINISH:
    BROWN
    PRODUCT NAME:
    AXLE BLOCK
    MATERIAL:
    BILLET ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    COLOR/FINISH:
    ANODIZED
    MSRP: $59.95
    Now: $52.76
    Was: $59.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $59.95
    Now: $52.76
    Was: $59.95
    Subtotal:
  • On Sale
    Pro Circuit Axle Blocks KX250F 2017-2025 KAB17

    Pro Circuit Axle Blocks KX250F 2017-2025 KAB17

    PRO CIRCUIT

    MSRP: $62.95
    Now: $55.40
    Was: $62.95
    Enhance your motorcycle's performance with the PRO CIRCUIT Axle Blocks, designed specifically for KX250F and KX450F models. These precision-engineered components ensure optimal rear wheel alignment, contributing to improved high-speed stability and...
    12310835
    SKU:
    12310835
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    HARD ANODIZED
    UNITS:
    PAIR
    PRODUCT NAME:
    AXLE BLOCK
    MATERIAL:
    BILLET ALUMINUM
    MSRP: $62.95
    Now: $55.40
    Was: $62.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $62.95
    Now: $55.40
    Was: $62.95
    Subtotal:
  • PARTS UNLIMITED 520 - Drive Chain - 110 Links T520110

    PARTS UNLIMITED 520 - Drive Chain - 110 Links T520110

    PARTS UNLIMITED

    $29.95
    Reliable, high-quality chain at the absolute lowest price, Precut lengths boxed individually with clip-type master link, Made in Taiwan
    T520110
    SKU:
    T520110
    Availability:
    Ships Same Business Day
    Weight:
    3.55 LBS
    CHAIN SIZE:
    520
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    250 CC
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    UTV
    COLOR/FINISH:
    BLACK
    MASTER LINK CONNECTOR:
    CLIP
    RIDING STYLE:
    STREET
    SEAL TYPE:
    NON-SEAL
    TENSILE STRENGTH IMPERIAL:
    6600 LB
    MATERIAL:
    STEEL
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    250 CC
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TENSILE STRENGTH METRIC:
    29.3 KN
    UNITS:
    EACH
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • PARTS UNLIMITED 520 - Drive Chain - 112 Links T520112

    PARTS UNLIMITED 520 - Drive Chain - 112 Links T520112

    PARTS UNLIMITED

    $42.95
    Reliable High-Quality Chain Exceptional durability for long-lasting performance Precut lengths for easy installation and convenience Individually boxed with a clip-type master link Designed for seamless operation in various...
    T520112
    SKU:
    T520112
    Availability:
    Ships Same Business Day
    Weight:
    3.63 LBS
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    250 CC
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    250 CC
    TENSILE STRENGTH IMPERIAL:
    6600 LB
    TENSILE STRENGTH METRIC:
    29.3 KN
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    CHAIN SIZE:
    520
    COLOR/FINISH:
    BLACK
    MASTER LINK CONNECTOR:
    CLIP
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    SEAL TYPE:
    NON-SEAL
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • PARTS UNLIMITED 520 - Drive Chain - 116 Links T520116

    PARTS UNLIMITED 520 - Drive Chain - 116 Links T520116

    PARTS UNLIMITED

    $31.95
    Reliable, high-quality chain at the absolute lowest price, Precut lengths boxed individually with clip-type master link, Made in Taiwan
    T520116
    SKU:
    T520116
    Availability:
    Ships Same Business Day
    Weight:
    3.75 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TENSILE STRENGTH METRIC:
    29.3 KN
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    250 CC
    RIDING STYLE:
    UTV
    CHAIN SIZE:
    520
    COLOR/FINISH:
    BLACK
    MASTER LINK CONNECTOR:
    CLIP
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    SEAL TYPE:
    NON-SEAL
    UNITS:
    EACH
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    250 CC
    TENSILE STRENGTH IMPERIAL:
    6600 LB
    $31.95
    Qty in Cart: 0
    Quantity:
    Price:
    $31.95
    Subtotal:
  • PARTS UNLIMITED 520H - Drive Chain - 112 Links T520H112

    PARTS UNLIMITED 520H - Drive Chain - 112 Links T520H112

    PARTS UNLIMITED

    $42.95
    Reliable High-Quality Chain - Exceptional durability for long-lasting performance. Precut lengths for easy installation and convenience. Individually boxed with connecting links for hassle-free use. Manufactured in Taiwan, ensuring...
    T520H112
    SKU:
    T520H112
    Availability:
    Ships Same Business Day
    Weight:
    4.25 LBS
    MATERIAL:
    STEEL
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    250 CC
    RIDING STYLE:
    ATV
    TENSILE STRENGTH IMPERIAL:
    7450 LB
    UNITS:
    EACH
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    250 CC
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    OFF-ROAD
    TENSILE STRENGTH METRIC:
    33.1 KN
    CHAIN SIZE:
    520
    CHAIN TYPE:
    520 H
    COLOR/FINISH:
    BLACK
    MASTER LINK CONNECTOR:
    CLIP
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    SEAL TYPE:
    NON-SEAL
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • PARTS UNLIMITED 420 - Drive Chain - 132 Links T420132

    PARTS UNLIMITED 420 - Drive Chain - 132 Links T420132

    PARTS UNLIMITED

    $19.95
    Reliable, high-quality chain at the absolute lowest price, Precut lengths boxed individually with clip-type master link, Made in Taiwan
    T420132
    SKU:
    T420132
    Availability:
    Ships Same Business Day
    Weight:
    2.20 LBS
    COLOR/FINISH:
    BLACK
    MASTER LINK CONNECTOR:
    CLIP
    MATERIAL:
    STEEL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SEAL TYPE:
    NON-SEAL
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    TENSILE STRENGTH IMPERIAL:
    3950 LB
    TENSILE STRENGTH METRIC:
    17.5 KN
    CHAIN SIZE:
    420
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    80 CC
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    80 CC
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • PARTS UNLIMITED 428 - Drive Chain - 124 Links T428124

    PARTS UNLIMITED 428 - Drive Chain - 124 Links T428124

    PARTS UNLIMITED

    $19.95
    Reliable High-Quality Chain Exceptional durability for long-lasting performance Precut lengths for easy installation and convenience Individually boxed with a clip-type master link Designed for seamless operation in various...
    T428124
    SKU:
    T428124
    Availability:
    Ships Same Business Day
    Weight:
    2.40 LBS
    RIDING STYLE:
    OFF-ROAD
    TENSILE STRENGTH IMPERIAL:
    4050 LB
    TENSILE STRENGTH METRIC:
    18 KN
    MATERIAL:
    STEEL
    RIDING STYLE:
    UTV
    CHAIN SIZE:
    428
    COLOR/FINISH:
    BLACK
    MASTER LINK CONNECTOR:
    CLIP
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    125 CC
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    SEAL TYPE:
    NON-SEAL
    UNITS:
    EACH
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    125 CC
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • PARTS UNLIMITED 428H - Drive Chain - 120 Links T428H120

    PARTS UNLIMITED 428H - Drive Chain - 120 Links T428H120

    PARTS UNLIMITED

    $24.95
    Reliable, high-quality chain at the absolute lowest price, Precut lengths boxed individually with connecting links, Made in Taiwan
    T428H120
    SKU:
    T428H120
    Availability:
    Ships Same Business Day
    Weight:
    2.75 LBS
    RIDING STYLE:
    UTV
    MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
    200 CC
    CHAIN SIZE:
    428
    CHAIN TYPE:
    428 H
    MASTER LINK CONNECTOR:
    CLIP
    MAXIMUM ENGINE DISPLACEMENT (STREET):
    200 CC
    PRODUCT NAME:
    DRIVE CHAIN
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    MATERIAL:
    STEEL
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    SEAL TYPE:
    NON-SEAL
    TENSILE STRENGTH IMPERIAL:
    4050 LB
    TENSILE STRENGTH METRIC:
    18 KN
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • PARTS UNLIMITED Single Bearing - 5/8 x 1-3/8 499502H

    PARTS UNLIMITED Single Bearing - 5/8 x 1-3/8 499502H

    PARTS UNLIMITED

    $6.30
    Parts Unlimited has a broad assortment of popular top-quality bearings for many applications, New triple-seal bearings feature special low temperature grease, Bearings are rated ABEC #1
    499502H
    SKU:
    499502H
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    INSIDE DIAMETER:
    15,9 MM (5/8')
    OUTSIDE DIAMETER:
    34,9 MM (1-3/8')
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    RIDING STYLE:
    ATV
    THICKNESS:
    11 MM
    TYPE:
    DOUBLE SEAL
    UNITS:
    EACH
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    SNOW
    STYLE:
    SMOOTH
    $6.30
    Qty in Cart: 0
    Quantity:
    Price:
    $6.30
    Subtotal:
  • MOOSE RACING Clutch Kit M90-229

    MOOSE RACING Clutch Kit M90-229

    MOOSE RACING

    $112.95
    Designed to outperform OEM or aftermarket clutches, A one-stop shop for all of your clutch components
    11312453
    SKU:
    11312453
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    FEATURES:
    INCLUDES GASKET
    PRODUCT NAME:
    CLUTCH KIT
    DRIVE PLATE MATERIAL:
    STEEL
    FEATURES:
    INCLUDES SPRINGS
    RIDING STYLE:
    OFF-ROAD
    SPRING MATERIAL:
    CHROME SILICON
    TYPE:
    COMPLETE
    UNITS:
    KIT
    $112.95
    Qty in Cart: 0
    Quantity:
    Price:
    $112.95
    Subtotal:
  • MOOSE RACING Clutch Springs MHDS27-6

    MOOSE RACING Clutch Springs MHDS27-6

    MOOSE RACING

    $16.95
    Springs are precision-wound using the finest chrome silicone wire, Heat-treated and shot-peened for maximum life, Improved feel at the clutch lever and stronger performance than OEM springs
    11310517
    SKU:
    11310517
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    PRODUCT NAME:
    SPRING SET
    RIDING STYLE:
    OFF-ROAD
    SPRING MATERIAL:
    CHROME SILICON
    TYPE:
    CLUTCH
    UNITS:
    SET
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Clutch Friction Plates M70-5700-8

    MOOSE RACING Clutch Friction Plates M70-5700-8

    MOOSE RACING

    $130.95
    DP manufactures these with heat-resistant friction material for fade-free performance, Ready to install, no need to soak in oil, Designed to ensure ultra-smooth power delivery
    11310082
    SKU:
    11310082
    Availability:
    Ships Same Business Day
    Weight:
    0.59 LBS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    FRICTION PLATE SET
    UNITS:
    SET
    $130.95
    Qty in Cart: 0
    Quantity:
    Price:
    $130.95
    Subtotal:
  • MOOSE RACING Clutch Friction Plates M70-5507-9

    MOOSE RACING Clutch Friction Plates M70-5507-9

    MOOSE RACING

    $141.95
    DP manufactures these with heat-resistant friction material for fade-free performance, Ready to install, no need to soak in oil, Designed to ensure ultra-smooth power delivery
    11310089
    SKU:
    11310089
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH
    PRODUCT NAME:
    FRICTION PLATE SET
    UNITS:
    SET
    $141.95
    Qty in Cart: 0
    Quantity:
    Price:
    $141.95
    Subtotal:
  • MOOSE RACING Clutch Friction Plates M70-5508-7

    MOOSE RACING Clutch Friction Plates M70-5508-7

    MOOSE RACING

    $128.95
    DP manufactures these with heat-resistant friction material for fade-free performance, Ready to install, no need to soak in oil, Designed to ensure ultra-smooth power delivery
    11310090
    SKU:
    11310090
    Availability:
    Ships Same Business Day
    Weight:
    0.78 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH
    PRODUCT NAME:
    FRICTION PLATE SET
    UNITS:
    SET
    $128.95
    Qty in Cart: 0
    Quantity:
    Price:
    $128.95
    Subtotal:
  • MOOSE RACING Clutch Springs MHDS115-6

    MOOSE RACING Clutch Springs MHDS115-6

    MOOSE RACING

    $16.95
    Springs are precision-wound using the finest chrome silicone wire, Heat-treated and shot-peened for maximum life, Improved feel at the clutch lever and stronger performance than OEM springs
    11310093
    SKU:
    11310093
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    PRODUCT NAME:
    SPRING SET
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    SPRING MATERIAL:
    CHROME SILICON
    TYPE:
    CLUTCH
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Clutch Springs MHDS116-6

    MOOSE RACING Clutch Springs MHDS116-6

    MOOSE RACING

    $16.95
    Springs are precision-wound using the finest chrome silicone wire, Heat-treated and shot-peened for maximum life, Improved feel at the clutch lever and stronger performance than OEM springs
    11310097
    SKU:
    11310097
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    SPRING MATERIAL:
    CHROME SILICON
    TYPE:
    CLUTCH
    PRODUCT NAME:
    SPRING SET
    UNITS:
    SET
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Clutch Basket M270

    MOOSE RACING Clutch Basket M270

    MOOSE RACING

    $248.95
    New design improves clutch performance and heat dissipation, Precision machined from billet T-6 aircraft quality aluminum, Hard anodized for longer wear resistance than OEM design, Superior tensile strength and hardness, Advanced design allows clutch...
    11320175
    SKU:
    11320175
    Availability:
    Ships Same Business Day
    Weight:
    1.44 LBS
    COLOR/FINISH:
    ANODIZED
    UNITS:
    EACH
    MATERIAL:
    6061 AIRCRAFT-GRADE ALUMINUM ALLOY
    PRODUCT NAME:
    CLUTCH BASKET
    RIDING STYLE:
    OFF-ROAD
    $248.95
    Qty in Cart: 0
    Quantity:
    Price:
    $248.95
    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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