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
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DRAG SPECIALTIES Upper Belt Guard - 00-05 FXD/FXDWG/FXDL - Chrome 105051
DRAG SPECIALTIES
$119.79The upper belt guard protects your primary drive system from road debris, moisture, and contamination while maintaining clean aesthetics on your FXD platform. Chrome construction resists corrosion and matches OEM-style finishes, ensuring durability...12020010- SKU:
- 12020010
- Availability:
- Ships Same Business Day
- Weight:
- 1.84 LBS
- TYPE:
- REAR BELT
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- UPPER
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
$119.79 -
DRAG SPECIALTIES Primary Chain - 428-2 x 92 C226T3/009
DRAG SPECIALTIES
$158.95A primary chain is the foundation of reliable power delivery in any high-performance drivetrain. This DRAG SPECIALTIES 428-2 x 92 C226T3/009 chain delivers the fatigue resistance and consistency that separates consistent lap times from catastrophic...11200285- SKU:
- 11200285
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- UNITS:
- EACH
- NUMBER OF LINKS:
- 92
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
$158.95 -
DRAG SPECIALTIES Organic Plates 1131-0425
DRAG SPECIALTIES
$105.95If you're running a high-performance drivetrain, your clutch plates are working under conditions most street components were never designed to handle. The DRAG SPECIALTIES Organic Plates 1131-0425 deliver the heat resistance and shift precision you need...11310425- SKU:
- 11310425
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- MATERIAL:
- ORGANIC
- RIDING STYLE:
- STREET
- STYLE:
- OEM REPLACEMENT
- TYPE:
- CLUTCH
- UNITS:
- SET OF 8
- PRODUCT NAME:
- FRICTION PLATE
$105.95 -
DRAG SPECIALTIES Steel Plates 1131-0431
DRAG SPECIALTIES
$39.17Precision shifting under extreme load demands clutch plates engineered for reliability, not compromises. DRAG Specialties Steel Plates deliver consistent engagement across drag racing's harshest conditions—whether you're running wet or dry. Built to U.S...11310431- SKU:
- 11310431
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- DRIVE PLATE
- TYPE:
- CLUTCH
- UNITS:
- SET OF 7
- RIDING STYLE:
- STREET
$39.17 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0420
DRAG SPECIALTIES
$118.67If you're running a high-performance clutch system, your friction plates endure temperatures and pressures that demand premium materials. The DRAG SPECIALTIES Aramid Fiber Plates deliver the heat resistance and shift precision you need for consistent...11310420- SKU:
- 11310420
- Availability:
- Ships Same Business Day
- Weight:
- 1.02 LBS
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
- UNITS:
- SET OF 8
- PRODUCT NAME:
- FRICTION PLATE
- TYPE:
- CLUTCH
$118.67 -
DRAG SPECIALTIES Steel Plates 1131-0430
DRAG SPECIALTIES
$32.81Consistent clutch engagement is non-negotiable when you're pushing peak power through the drivetrain. The DRAG SPECIALTIES Steel Plates 1131-0430 are engineered to handle extreme heat cycles without degradation, delivering reliable, predictable shifting...11310430- SKU:
- 11310430
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- DRIVE PLATE
- MATERIAL:
- STEEL
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- SET OF 6
$32.81 -
DRAG SPECIALTIES Rear Drive Belt - 128-Tooth - 1 1/8" BDL SPC-128-118
DRAG SPECIALTIES
$311.15A reliable rear drive belt is critical for consistent power delivery and preventing catastrophic drivetrain failure. This DRAG SPECIALTIES unit delivers 33% greater tensile strength than standard aramid belts, meaning you get extended service intervals...12040042- SKU:
- 12040042
- Availability:
- Ships Same Business Day
- Weight:
- 1.96 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 128
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$311.15 -
DRAG SPECIALTIES Primary Sprocket 191200
DRAG SPECIALTIES
$163.08If you're running a solid steel primary sprocket setup, you need a compensator that matches the durability of your drivetrain—not one that's fighting spring noise and wear every time you roll on the throttle. The DRAG SPECIALTIES Primary Sprocket 191200...11200390- SKU:
- 11200390
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- PRODUCT NAME:
- SPROCKET KIT
- TYPE:
- COMPENSATING
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 34
$163.08 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0419
DRAG SPECIALTIES
$146.23Clutch performance under extreme conditions separates champions from the rest. The DRAG SPECIALTIES Aramid Fiber Plates 1131-0419 deliver consistent, precise shifts whether you're running a dry setup or operating in wet conditions, giving you the...11310419- SKU:
- 11310419
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- UNITS:
- SET OF 9
- PRODUCT NAME:
- FRICTION PLATE
- TYPE:
- CLUTCH
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
$146.23 -
DRAG SPECIALTIES Steel Plates 1131-0429
DRAG SPECIALTIES
$43.41If you're building a high-performance transmission setup, clutch plate quality directly impacts shift consistency and power delivery under load. DRAG Specialties Steel Plates are engineered for the extreme thermal demands of drag racing and street...11310429- SKU:
- 11310429
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- DRIVE PLATE
- UNITS:
- SET OF 8
$43.41 -
DRAG SPECIALTIES Inner Primary Bearing 20-2037
DRAG SPECIALTIES
$35.25A worn or damaged inner primary bearing will compromise your entire drivetrain's efficiency and create costly secondary failures down the line. This OEM-spec bearing restores smooth power transfer from your engine to the transmission, eliminating play...11200306- SKU:
- 11200306
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TYPE:
- INNER PRIMARY
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$35.25Qty in Cart: 0Quantity:Price:$35.25Subtotal: -
DRAG SPECIALTIES Kickstarter Shaft 26-0261
DRAG SPECIALTIES
$30.69A reliable kickstarter shaft is critical for consistent engine engagement and dependable cold starts—especially when you're relying on your bike to perform in race conditions or demanding rides. The DRAG SPECIALTIES Kickstarter Shaft 26-0261 delivers the...DS196008- SKU:
- DS196008
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- PRODUCT NAME:
- KICKSTARTER SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$30.69 -
DRAG SPECIALTIES Kickstarter Ratchet Gear Kit 26-0267/8SC2
DRAG SPECIALTIES
$95.35A reliable kickstarter mechanism is fundamental to consistent engine engagement, and worn or imprecise ratchet gearing creates costly downtime and unpredictable starts. The DRAG SPECIALTIES Kickstarter Ratchet Gear Kit delivers the positive engagement...DS194118- SKU:
- DS194118
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- KICKSTARTER KIT
- RIDING STYLE:
- STREET
- FEATURES:
- INCLUDES 1.047' SPACER
$95.35 -
DRAG SPECIALTIES Primary Chain - 428-2 x 86 C226T3/004
DRAG SPECIALTIES
$132.45A primary chain is mission-critical to your engine's reliability—and a weak link here means catastrophic failure at the worst possible moment. The DRAG SPECIALTIES 428-2 x 86 C226T3/004 delivers the fatigue resistance and pre-loading you need to...11200284- SKU:
- 11200284
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- UNITS:
- EACH
- NUMBER OF LINKS:
- 86
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PRIMARY CHAIN
$132.45 -
DRAG SPECIALTIES Transmission Top Cover - Chrome 302102
DRAG SPECIALTIES
$86.87If you're building a clean, cohesive engine bay aesthetic, a quality transmission top cover is essential—it ties together your chrome or flat black components while protecting internal components from debris and moisture. This Drag Specialties cover...11050018- SKU:
- 11050018
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- POWDER-COATED
- RIDING STYLE:
- STREET
- MOUNTING STYLE:
- 5 HOLE
- PRODUCT NAME:
- COVER
- TYPE:
- TRANSMISSION TOP
- UNITS:
- EACH
$86.87 -
DRAG SPECIALTIES Sprocket Cover - Polished - '04-'19 XL D26-0409
DRAG SPECIALTIES
$105.95A polished sprocket cover does more than catch light—it protects your primary drivetrain from dirt, debris, and contamination while delivering a clean, finished look to your engine bay. If you're running an '04-'19 Sportster, this Drag Specialties cover...11070278- SKU:
- 11070278
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- TYPE:
- SPROCKET
$105.95 -
DRAG SPECIALTIES Compensating Sprocket Nut - '70-'90 346191
DRAG SPECIALTIES
$20.28A worn or damaged compensating sprocket nut directly impacts your drivetrain's ability to handle engine vibration, leading to accelerated wear on your primary chain and sprockets. This OEM-style replacement restores proper damping characteristics,...20173462- SKU:
- 20173462
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- NUT
- TYPE:
- COMPENSATING SPROCKET
- RIDING STYLE:
- STREET
$20.28Qty in Cart: 0Quantity:Price:$20.28Subtotal: -
DRAG SPECIALTIES Clutch Retainer 17-0014-HC
DRAG SPECIALTIES
$14.79If your clutch feels grabby or your shifts are harsh, a worn spring retainer is likely the culprit. This Drag Specialties retainer maintains proper disc clearance when disengaged, eliminating premature wear and delivering the smooth, consistent clutch...11320090- SKU:
- 11320090
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- SPRING RETAINER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- EACH
$14.79 -
DRAG SPECIALTIES Clutch Release Lever 07-0306
DRAG SPECIALTIES
$42.35A properly functioning clutch release lever is critical to consistent engagement and disengagement, especially in high-demand racing applications where reliability can't be compromised. This DRAG Specialties lever delivers the mechanical precision you...11320599- SKU:
- 11320599
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- LEVER
- TYPE:
- CLUTCH RELEASE
- COLOR/FINISH:
- CHROME
$42.35 -
DRAG SPECIALTIES Clutch Finger Pivot Shaft 17-0061
DRAG SPECIALTIES
$21.15A worn or damaged clutch finger pivot shaft compromises your clutch engagement precision and can lead to inconsistent pressure plate actuation—critical issues for any serious driver. This OEM-equivalent replacement from Drag Specialties restores...11320601- SKU:
- 11320601
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- PIVOT SHAFT
- TYPE:
- CLUTCH FINGER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$21.15
