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Harley Drivetrain

Harley Drivetrain

Harley Drivetrain

Harley Bike Drivetrain Parts at JJ Motorsports

Upgrade your Harley's drivetrain for smoother power delivery and reliability with components from JJ Motorsports. Our selection includes transmission mounting plates, offset sprockets, mechanical reverse kits, starter spacers, pulley spacers, and primary covers designed for heavy-duty use, easy bolt-in installation, and enhanced performance. Compatible with Big Twins, Softail, Dyna, and more, these parts feature chrome finishes, billet aluminum, and CNC-machined steel for corrosion resistance and custom fitment.

Shop trusted brands like Paughco for primary covers and PBI for sprockets. Explore related categories such as Harley engine parts for rebuilds or Harley suspension for balanced setups.

Top Harley Drivetrain Products

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
  • DRAG SPECIALTIES Transmission Pulley - 32-Tooth D26-0142-32

    DRAG SPECIALTIES Transmission Pulley - 32-Tooth D26-0142-32

    DRAG SPECIALTIES

    $107.07
    Heat-treated steel construction
    12030016
    SKU:
    12030016
    Availability:
    Ships Same Business Day
    Weight:
    5.00 LBS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    PULLEY
    RIDING STYLE:
    STREET
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    TOOTH COUNT:
    32
    TYPE:
    TRANSMISSION
    UNITS:
    EACH
    $107.07
    Qty in Cart: 0
    Quantity:
    Price:
    $107.07
    Subtotal:
  • DRAG SPECIALTIES Transmission Pulley - 28-Tooth D26-0139-28

    DRAG SPECIALTIES Transmission Pulley - 28-Tooth D26-0139-28

    DRAG SPECIALTIES

    $86.27
    Heat-treated steel construction
    12030017
    SKU:
    12030017
    Availability:
    Ships Same Business Day
    Weight:
    3.65 LBS
    MATERIAL:
    STEEL
    PRODUCT NAME:
    PULLEY
    TYPE:
    TRANSMISSION
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    28
    UNITS:
    EACH
    MOUNTING POSITION:
    FRONT
    $86.27
    Qty in Cart: 0
    Quantity:
    Price:
    $86.27
    Subtotal:
  • DRAG SPECIALTIES Transmission Pulley - 29-Tooth D26-0139-29

    DRAG SPECIALTIES Transmission Pulley - 29-Tooth D26-0139-29

    DRAG SPECIALTIES

    $92.51
    Heat-treated steel construction
    12030018
    SKU:
    12030018
    Availability:
    Ships Same Business Day
    Weight:
    3.75 LBS
    PRODUCT NAME:
    PULLEY
    TYPE:
    TRANSMISSION
    TOOTH COUNT:
    29
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $92.51
    Qty in Cart: 0
    Quantity:
    Price:
    $92.51
    Subtotal:
  • DRAG SPECIALTIES Transmission Pulley - 30-Tooth D26-0139-30

    DRAG SPECIALTIES Transmission Pulley - 30-Tooth D26-0139-30

    DRAG SPECIALTIES

    $111.23
    Heat-treated steel construction
    12030019
    SKU:
    12030019
    Availability:
    Ships Same Business Day
    Weight:
    4.05 LBS
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    UNITS:
    EACH
    PRODUCT NAME:
    PULLEY
    TOOTH COUNT:
    30
    TYPE:
    TRANSMISSION
    $111.23
    Qty in Cart: 0
    Quantity:
    Price:
    $111.23
    Subtotal:
  • DRAG SPECIALTIES Transmission Pulley - 29-Tooth D26-0140-29

    DRAG SPECIALTIES Transmission Pulley - 29-Tooth D26-0140-29

    DRAG SPECIALTIES

    $112.27
    Heat-treated steel construction
    12030020
    SKU:
    12030020
    Availability:
    Ships Same Business Day
    Weight:
    3.90 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    STEEL
    MOUNTING POSITION:
    FRONT
    UNITS:
    EACH
    PRODUCT NAME:
    PULLEY
    TYPE:
    TRANSMISSION
    COLOR/FINISH:
    BLACK
    TOOTH COUNT:
    29
    $112.27
    Qty in Cart: 0
    Quantity:
    Price:
    $112.27
    Subtotal:
  • DRAG SPECIALTIES Clutch Kit D17-0141

    DRAG SPECIALTIES Clutch Kit D17-0141

    DRAG SPECIALTIES

    $60.72
    DRAG SPECIALTIES Clutch Kit
    11321580
    SKU:
    11321580
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $60.72
    Subtotal:
  • Rekluse TorqDrive Clutch Kit for 2003-2020 Harley-Davidson Sportster XL Models RMS-2815006

    Rekluse TorqDrive Clutch Kit for 2003-2020 Harley-Davidson Sportster XL Models RMS-2815006

    REKLUSE

    $429.00
    Enhance your riding experience with the REKLUSE TorqDrive® Clutch Kit RMS-2815006. This advanced clutch system delivers superior performance, ensuring robust engagement without increasing lever effort. Designed for seamless shifting and improved lever...
    11300434
    SKU:
    11300434
    Availability:
    Ships Same Business Day
    Weight:
    2.55 LBS
    COLOR/FINISH:
    ALUMINUM
    UNITS:
    KIT
    MATERIAL:
    STEEL
    MODEL:
    TORQDRIVE®
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    STREET
    $429.00
    Qty in Cart: 0
    Quantity:
    Price:
    $429.00
    Subtotal:
  • Rekluse Core Manual TorqDrive Clutch Kit for Harley-Davidson Sportster 1200 Custom 2003-2020 RMS-7115006

    Rekluse Core Manual TorqDrive Clutch Kit for Harley-Davidson Sportster 1200 Custom 2003-2020 RMS-7115006

    REKLUSE

    $909.00
    Experience unparalleled performance and durability with the Core Manual TorqDrive clutch. Designed to enhance your engine's power without the need for stiffer pressure plate springs, this clutch kit optimizes torque capacity while ensuring a smooth lever...
    11300435
    SKU:
    11300435
    Availability:
    Ships Same Business Day
    Weight:
    4.80 LBS
    UNITS:
    KIT
    MODEL:
    CORE MANUAL TORQ-DRIVE
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CLUTCH KIT
    $909.00
    Qty in Cart: 0
    Quantity:
    Price:
    $909.00
    Subtotal:
  • Rekluse Derby Cover Gloss Black 2004-2019 Harley-Davidson Sportster XL1200 RMS-0515001

    Rekluse Derby Cover Gloss Black 2004-2019 Harley-Davidson Sportster XL1200 RMS-0515001

    REKLUSE

    $179.00
    Enhance the performance and aesthetics of your motorcycle with the REKLUSE Derby Cover RMS-0515001. Crafted from high-quality billet aluminum, this cover is designed for superior durability and a perfect fit. Installation is a breeze—simply bolt it on...
    11070617
    SKU:
    11070617
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    COLOR/FINISH:
    GLOSS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    $179.00
    Qty in Cart: 0
    Quantity:
    Price:
    $179.00
    Subtotal:
  • Rekluse Derby Cover for 2004-2021 Harley-Davidson Sportster XL1200X RMS-0515002

    Rekluse Derby Cover for 2004-2021 Harley-Davidson Sportster XL1200X RMS-0515002

    REKLUSE

    $179.00
    Enhance the performance and aesthetics of your motorcycle with the REKLUSE Derby Cover RMS-0515002. Crafted from high-quality billet aluminum, this derby cover is designed for exceptional durability and a perfect fit, ensuring a seamless installation...
    11070618
    SKU:
    11070618
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    WRINKLE BLACK
    $179.00
    Qty in Cart: 0
    Quantity:
    Price:
    $179.00
    Subtotal:
  • Rekluse Derby Cover Black Gloss Harley-Davidson Dyna Low Rider 1999-2005 RMS-0515003

    Rekluse Derby Cover Black Gloss Harley-Davidson Dyna Low Rider 1999-2005 RMS-0515003

    REKLUSE

    $179.00
    Upgrade your motorcycle with the REKLUSE Derby Cover RMS-0515003, crafted from high-quality billet aluminum for enhanced strength and longevity. This precision-engineered cover seamlessly fits over any Rekluse or OEM clutch, ensuring a perfect match...
    11070619
    SKU:
    11070619
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    GLOSS
    $179.00
    Qty in Cart: 0
    Quantity:
    Price:
    $179.00
    Subtotal:
  • Rekluse Derby Cover 2018-2019 Harley-Davidson Softail Slim FLSL RMS-0515004

    Rekluse Derby Cover 2018-2019 Harley-Davidson Softail Slim FLSL RMS-0515004

    REKLUSE

    $179.00
    Enhance the look and performance of your motorcycle with the REKLUSE Derby Cover RMS-0515004. Crafted from high-quality billet aluminum, this derby cover is designed to provide exceptional durability while seamlessly fitting into your bike's aesthetic...
    11070620
    SKU:
    11070620
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    WRINKLE BLACK
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    $179.00
    Qty in Cart: 0
    Quantity:
    Price:
    $179.00
    Subtotal:
  • Rekluse Derby Clutch Cover Gloss Black 2016-2023 Harley-Davidson FLHR Road King RMS-0515005

    Rekluse Derby Clutch Cover Gloss Black 2016-2023 Harley-Davidson FLHR Road King RMS-0515005

    REKLUSE

    $179.00
    Enhance the performance and aesthetics of your motorcycle with the REKLUSE Derby Cover RMS-0515005. Crafted from high-quality billet aluminum, this derby cover not only adds a touch of elegance but also ensures exceptional durability. Designed to...
    11070621
    SKU:
    11070621
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    COLOR/FINISH:
    GLOSS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $179.00
    Qty in Cart: 0
    Quantity:
    Price:
    $179.00
    Subtotal:
  • REKLUSE Derby Cover RMS-0515006

    REKLUSE Derby Cover RMS-0515006

    REKLUSE

    $179.00
    Billet aluminum construction provides increased durability, Designed to match OEM specifications, they bolt on with no modifications or drilling, Fit over any Rekluse or OEM clutch, Made in the U.S.A.
    11070622
    SKU:
    11070622
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    COLOR/FINISH:
    WRINKLE BLACK
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $179.00
    Qty in Cart: 0
    Quantity:
    Price:
    $179.00
    Subtotal:
  • Rekluse Derby Cover Wrinkle Black Indian Scout 2015-2022 RMS-0516002

    Rekluse Derby Cover Wrinkle Black Indian Scout 2015-2022 RMS-0516002

    REKLUSE

    $179.00
    Enhance the look and performance of your motorcycle with the REKLUSE Derby Cover Wrinkle Black RMS-0516002. Crafted to meet OEM specifications, this cover ensures a perfect fit without the need for modifications. Its durable powder-coated billet aluminum...
    11070624
    SKU:
    11070624
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    COVER
    TYPE:
    DERBY COVER
    COLOR/FINISH:
    WRINKLE BLACK
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $179.00
    Qty in Cart: 0
    Quantity:
    Price:
    $179.00
    Subtotal:
  • Rekluse TorqDrive Clutch Kit 2004-2006 Harley-Davidson Sportster RMS-2815006

    Rekluse TorqDrive Clutch Kit 2004-2006 Harley-Davidson Sportster RMS-2815006

    REKLUSE

    $579.00
    Enhance your riding experience with the REKLUSE TorqDrive® Clutch Kit RMS-2815007. This advanced clutch system is designed to deliver superior performance, providing up to 50% stronger engagement without increasing lever effort. Experience smoother...
    11300304
    SKU:
    11300304
    Availability:
    Ships Same Business Day
    Weight:
    2.95 LBS
    COLOR/FINISH:
    ALUMINUM
    MODEL:
    TORQDRIVE®
    PRODUCT NAME:
    CLUTCH KIT
    UNITS:
    KIT
    MATERIAL:
    STEEL
    RIDING STYLE:
    STREET
    $579.00
    Qty in Cart: 0
    Quantity:
    Price:
    $579.00
    Subtotal:
  • Rekluse TorqDrive Clutch Kit for Indian Scout 2015-2023 RMS-2816031

    Rekluse TorqDrive Clutch Kit for Indian Scout 2015-2023 RMS-2816031

    REKLUSE

    $559.00
    Experience the ultimate in clutch performance with the REKLUSE TorqDrive® Clutch RMS-2816031. Engineered to maximize torque capacity, this innovative clutch system allows for the addition of up to six extra friction discs, enhancing your bike's power...
    11300305
    SKU:
    11300305
    Availability:
    Ships Same Business Day
    Weight:
    3.30 LBS
    MODEL:
    TORQDRIVE®
    PRODUCT NAME:
    CLUTCH KIT
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    $559.00
    Qty in Cart: 0
    Quantity:
    Price:
    $559.00
    Subtotal:
  • Rekluse TorqDrive Clutch Kit 1998-2017 Harley-Davidson Big Twin RMS-284

    Rekluse TorqDrive Clutch Kit 1998-2017 Harley-Davidson Big Twin RMS-284

    REKLUSE

    $579.00
    Enhance your riding experience with the REKLUSE TorqDrive® Clutch Kit RMS-284. This advanced clutch system is engineered to deliver superior performance, offering up to 50% stronger clutch engagement without increasing lever effort. Enjoy smoother...
    11300306
    SKU:
    11300306
    Availability:
    Ships Same Business Day
    Weight:
    3.60 LBS
    MATERIAL:
    STEEL
    MODEL:
    TORQDRIVE®
    PRODUCT NAME:
    CLUTCH KIT
    COLOR/FINISH:
    ALUMINUM
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $579.00
    Qty in Cart: 0
    Quantity:
    Price:
    $579.00
    Subtotal:
  • Rekluse TorqDrive Clutch Kit for Harley-Davidson Softail 2018-2023 RMS-285

    Rekluse TorqDrive Clutch Kit for Harley-Davidson Softail 2018-2023 RMS-285

    REKLUSE

    $579.00
    Upgrade your ride with the REKLUSE TorqDrive® Clutch Kit RMS-285, designed to enhance performance without compromising comfort. This innovative clutch kit features an impressive six friction disks, delivering superior engagement and smoother shifting for...
    11300307
    SKU:
    11300307
    Availability:
    Ships Same Business Day
    Weight:
    3.60 LBS
    MATERIAL:
    STEEL
    PRODUCT NAME:
    CLUTCH KIT
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    ALUMINUM
    MODEL:
    TORQDRIVE®
    UNITS:
    KIT
    $579.00
    Qty in Cart: 0
    Quantity:
    Price:
    $579.00
    Subtotal:
  • REKLUSE RadiusX Clutch RMS-6201

    REKLUSE RadiusX Clutch RMS-6201

    REKLUSE

    $1,129.00
    Dead-on clutch engagement every time, Take off and stop in gear without using clutch lever; no more stalls, Experience maximum power delivery, Confidently navigate traffic and slow-speed conditions, TorqDrive® clutch pack delivers higher torque capacity...
    11300308
    SKU:
    11300308
    Availability:
    Ships Same Business Day
    Weight:
    3.75 LBS
    MODEL:
    RADIUSX
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CLUTCH KIT
    UNITS:
    KIT
    $1,129.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,129.00
    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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