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
- PAUGHCO Transmission Plate - OE Type 4-Speed 218 – Heavy-duty steel for Big Twins with 4-speed transmissions.
- PBI Offset Transmission Sprocket - 22-Tooth 281-22 – CNC-machined chromoly steel with 0.750" offset for 530 chains.
- MOTOR TRIKE Mechanical Reverse Kit MTTR-0025 – Lightweight aluminum with electronic cut-off for easy parking.
- TERRY COMPONENTS Starter Spacer 779000 – Billet aluminum, 1-1/2" thick for longer starters.
- PINGEL Rear Pulley Spacer 62051 – Billet aluminum for wider tires up to 142mm.
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 Mainshaft Sprocket - 23 Tooth - XL 17508
DRAG SPECIALTIES
$39.54A worn or damaged mainshaft sprocket directly impacts your transmission's efficiency and power delivery—especially critical in drag racing where every fraction of a second counts. This DRAG SPECIALTIES 23-tooth replacement is engineered for stock XL...12120731- SKU:
- 12120731
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 530
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 23
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
$39.54 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 21-Tooth - XL 71811
DRAG SPECIALTIES
$39.54A precision-engineered mainshaft sprocket is essential for reliable power transfer in high-demand riding conditions. This DRAG SPECIALTIES 21-tooth sprocket delivers the durability you need for consistent performance, whether you're fine-tuning your gear...12120733- SKU:
- 12120733
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 530
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 21
- TYPE:
- MAINSHAFT
$39.54 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth - XL 72592
DRAG SPECIALTIES
$36.33A worn or damaged mainshaft sprocket directly compromises power delivery and acceleration consistency—especially critical in drag racing where every millisecond counts. This DRAG SPECIALTIES 23-tooth replacement restores precise engagement and reliable...12120735- SKU:
- 12120735
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 23
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- COLOR/FINISH:
- RAW
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
$36.33 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth 71565
DRAG SPECIALTIES
$32.05A worn or damaged mainshaft sprocket directly compromises power delivery and chain longevity. This Drag Specialties 23-tooth replacement restores OEM-spec engagement and reliability, eliminating slack, noise, and premature wear on your drivetrain. Built...12120740- SKU:
- 12120740
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- CHAIN SIZE:
- 530
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 23
- TYPE:
- MAINSHAFT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$32.05 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 22 Tooth 17501
DRAG SPECIALTIES
$34.19The DRAG SPECIALTIES Transmission Mainshaft Sprocket is a heat-treated OEM-style replacement designed to handle the demanding demands of high-RPM clutch engagement and power delivery. Whether you're rebuilding after a failure or upgrading to a proven...12120696- SKU:
- 12120696
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 22
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
$34.19Qty in Cart: 0Quantity:Price:$34.19Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth 70166
DRAG SPECIALTIES
$32.05A worn or damaged transmission mainshaft sprocket directly impacts your chain drive efficiency and can lead to premature wear on your entire drivetrain. This DRAG SPECIALTIES 23-tooth replacement restores the precision engagement your 530 chain demands,...12120701- SKU:
- 12120701
- Availability:
- Ships Same Business Day
- Weight:
- 1.39 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 23
$32.05Qty in Cart: 0Quantity:Price:$32.05Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 25 Tooth 70168
DRAG SPECIALTIES
$28.84A worn or damaged mainshaft sprocket directly compromises your drivetrain's efficiency and can lead to costly chain failure. This Drag Specialties 25-tooth replacement restores proper engagement with your 530 chain, ensuring reliable power delivery...12120703- SKU:
- 12120703
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 530
- TOOTH COUNT:
- 25
- TYPE:
- MAINSHAFT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$28.84 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth 70170
DRAG SPECIALTIES
$32.05A worn or damaged mainshaft sprocket directly compromises power delivery and accelerates drivetrain wear. This OEM-style replacement from Drag Specialties restores precise engagement with your 530 chain, ensuring reliable acceleration off the line and...12120705- SKU:
- 12120705
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 23
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$32.05Qty in Cart: 0Quantity:Price:$32.05Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 25 Tooth 73037
DRAG SPECIALTIES
$32.05A worn or damaged mainshaft sprocket directly compromises your transmission's ability to deliver power efficiently—causing chain slip, accelerated wear on adjacent components, and potential catastrophic failure under load. The DRAG SPECIALTIES 25-tooth...12120707- SKU:
- 12120707
- Availability:
- Ships Same Business Day
- Weight:
- 1.63 LBS
- CHAIN SIZE:
- 530
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 25
- UNITS:
- EACH
$32.05 -
DRAG SPECIALTIES Transmission Mounting Plate 74728
DRAG SPECIALTIES
$39.17A solid transmission mount is critical to keeping your drivetrain aligned and reducing unwanted vibration during hard acceleration. The DRAG Specialties Transmission Mounting Plate 74728 provides a dependable, chrome-finished solution for 5-speed...DS243621- SKU:
- DS243621
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- MOUNTING PLATE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$39.17 -
DRAG SPECIALTIES Stroker Kicker Arm 73114
DRAG SPECIALTIES
$116.55A quality kicker arm is essential for reliable kickstart engagement—poor fitment leads to missed starts and accelerated wear on your shaft. The DRAG Specialties Stroker Kicker Arm delivers consistent, solid contact with forged construction and chrome...DS241013- SKU:
- DS241013
- Availability:
- Ships Same Business Day
- Weight:
- 2.28 LBS
- PRODUCT NAME:
- KICKER ARM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$116.55Qty in Cart: 0Quantity:Price:$116.55Subtotal: -
DRAG SPECIALTIES Primary Chain Adjuster 71517
DRAG SPECIALTIES
$26.45A worn or misaligned primary chain creates excessive slack, leading to erratic engagement, noise, and potential drivetrain damage. The DRAG Specialties Primary Chain Adjuster 71517 restores precise tension and alignment, ensuring smooth power delivery...DS192004- SKU:
- DS192004
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CHAIN ADJUSTER KIT
- TYPE:
- PRIMARY CHAIN
- UNITS:
- EACH
$26.45 -
DRAG SPECIALTIES Primary Chain - 428-2 x 76 C226T3/006
DRAG SPECIALTIES
$141.99A primary chain is fundamental to your bike's power delivery—it's the direct mechanical link between your engine and transmission. The DRAG Specialties 428-2 x 76 C226T3/006 is engineered for reliability and longevity, featuring pre-loaded construction...11200282- SKU:
- 11200282
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- NUMBER OF LINKS:
- 76
- UNITS:
- EACH
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
$141.99 -
DRAG SPECIALTIES Primary Chain - #35-3 x 96 CA35-3S2N/1001
DRAG SPECIALTIES
$135.63Drag Specialties' #35-3 x 96 primary chain is engineered for the demands of high-RPM racing and heavy-duty street applications. Pre-loaded construction minimizes initial stretch, keeping your timing precise and reducing the need for early adjustment...11200287- SKU:
- 11200287
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- NUMBER OF LINKS:
- 96
$135.63 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0421
DRAG SPECIALTIES
$90.05If you're pushing your transmission to the limit, your clutch plates need to handle extreme temperatures without degradation or chatter. DRAG Specialties Aramid Fiber Plates deliver the thermal stability and friction consistency required for serious drag...11310421- SKU:
- 11310421
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
- UNITS:
- SET OF 6
- PRODUCT NAME:
- FRICTION PLATE
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$90.05 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0422
DRAG SPECIALTIES
$84.75If you're running a high-performance clutch system, your friction plates are working in extreme thermal conditions that demand reliability. DRAG Specialties Aramid Fiber Plates deliver consistent engagement and precise shift quality without the risk of...11310422- SKU:
- 11310422
- Availability:
- Ships Same Business Day
- Weight:
- 1.72 LBS
- TYPE:
- CLUTCH
- UNITS:
- SET OF 5
- PRODUCT NAME:
- FRICTION PLATE
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
$84.75 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0423
DRAG SPECIALTIES
$67.79If you're running a high-performance transmission that sees serious heat cycles, your clutch plates need to handle extreme temperatures without glazing or loss of friction. DRAG Specialties Aramid Fiber Plates deliver consistent, predictable engagement...11310423- SKU:
- 11310423
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
- PRODUCT NAME:
- FRICTION PLATE
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- SET OF 4
$67.79 -
DRAG SPECIALTIES Organic Plates 1131-0426
DRAG SPECIALTIES
$80.51If you're running a high-performance clutch system, your friction plates take the punishment every time you hit the throttle. DRAG Specialties Organic Plates deliver the smooth, predictable engagement your bike demands while handling the extreme...11310426- SKU:
- 11310426
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- PRODUCT NAME:
- FRICTION PLATE
- STYLE:
- OEM REPLACEMENT
- TYPE:
- CLUTCH
- UNITS:
- SET OF 6
- MATERIAL:
- ORGANIC
- RIDING STYLE:
- STREET
$80.51 -
DRAG SPECIALTIES Organic Plates 1131-0427
DRAG SPECIALTIES
$77.33If you're running a high-performance transmission that demands reliable engagement under extreme conditions, these organic plates deliver the smooth, precise shifts you need without compromise. Whether you're racing wet or dry, Drag Specialties'...11310427- SKU:
- 11310427
- Availability:
- Ships Same Business Day
- Weight:
- 1.74 LBS
- MATERIAL:
- ORGANIC
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FRICTION PLATE
- STYLE:
- OEM REPLACEMENT
- TYPE:
- CLUTCH
- UNITS:
- SET OF 5
$77.33 -
DRAG SPECIALTIES Organic Plates 1131-0428
DRAG SPECIALTIES
$77.33Consistent clutch engagement directly impacts your launch quality and ET times—especially in high-heat environments where standard plates fail. The DRAG Specialties Organic Plates 1131-0428 are engineered to maintain friction consistency under extreme...11310428- SKU:
- 11310428
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- MATERIAL:
- ORGANIC
- PRODUCT NAME:
- FRICTION PLATE
- TYPE:
- CLUTCH
- UNITS:
- SET OF 4
- RIDING STYLE:
- STREET
$77.33
