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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EASTERN MOTORCYCLE PARTS Kickstarter Ratchet Gear Keys A-33393-50
EASTERN MOTORCYCLE PARTS
$12.10A kickstarter ratchet gear key is essential for reliable engine starting and timing management in vintage and modern motorcycles alike. This EASTERN MOTORCYCLE PARTS component ensures precise engagement with your starter motor and crankshaft, eliminating...DS194350- SKU:
- DS194350
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- RATCHET GEAR KEYS
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$12.10 -
EASTERN MOTORCYCLE PARTS Lock Tabs - Inner Primary A-33318-85
EASTERN MOTORCYCLE PARTS
$17.50Inner primary lock tabs are a critical fastening component that prevents your primary cover bolts from loosening due to vibration and engine stress. Over time, these washers wear, deform, or corrode—compromising your seal integrity and risking oil leaks...DS194397- SKU:
- DS194397
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- LOCK TAB
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY
- UNITS:
- 10 PACK
$17.50 -
EASTERN MOTORCYCLE PARTS Transmission Sprocket Lock Tabs A-33335-79
EASTERN MOTORCYCLE PARTS
$16.10Transmission sprocket lock tabs are critical safety components that prevent unwanted sprocket rotation and potential drivetrain failure during high-performance operation. If your sprocket retention is compromised, you risk catastrophic power loss or...DS194398- SKU:
- DS194398
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- LOCK TAB
- RIDING STYLE:
- STREET
- TYPE:
- SPROCKET
- UNITS:
- 10 PACK
$16.10 -
EASTERN MOTORCYCLE PARTS Main Bearing Race A-35105-52
EASTERN MOTORCYCLE PARTS
$66.95Main bearing races are critical components that directly impact engine reliability and longevity—premature failure here can mean catastrophic engine damage. The Eastern Motorcycle Parts A-35105-52 is engineered to OEM specifications, ensuring proper load...DS195018- SKU:
- DS195018
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- BEARING RACE
- TYPE:
- MAIN
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$66.95 -
EASTERN MOTORCYCLE PARTS Starter Ratchet Bushing A-33438-50
EASTERN MOTORCYCLE PARTS
$24.95A reliable starter ratchet bushing is critical to maintaining consistent engagement between your starter motor and engine—wear or failure here leads to grinding, difficult starts, and potential starter damage. The Eastern Motorcycle Parts A-33438-50...DS194120- SKU:
- DS194120
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
$24.95 -
EASTERN MOTORCYCLE PARTS Kickstarter Shaft Bushing A-33099-52A
EASTERN MOTORCYCLE PARTS
$22.95A worn kickstarter shaft bushing compromises engagement and creates sloppy, unreliable kick-starting—especially problematic on vintage or high-mileage bikes where precision matters. The EASTERN MOTORCYCLE PARTS A-33099-52A restores proper shaft alignment...DS194124- SKU:
- DS194124
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- BUSHING KIT
- MATERIAL:
- BRASS
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
- TYPE:
- KICKSTARTER
$22.95 -
EASTERN MOTORCYCLE PARTS Countershaft Bushing - 1st and 2nd Gear A-35791-36
EASTERN MOTORCYCLE PARTS
$33.95A worn or damaged countershaft bushing compromises gear engagement and accelerates drivetrain wear—potentially leaving you stranded mid-race or ride. The EASTERN MOTORCYCLE PARTS Countershaft Bushing restores precise shaft alignment and smooth power...DS194132- SKU:
- DS194132
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- TYPE:
- FIRST GEAR
- UNITS:
- EACH
- MATERIAL:
- BRONZE
- PRODUCT NAME:
- COUNTERSHAFT BUSHING
- TYPE:
- SECOND GEAR
$33.95 -
EASTERN MOTORCYCLE PARTS Countershaft Bushing - 1st and Reverse Gear A-35789-36
EASTERN MOTORCYCLE PARTS
$33.95Precise gear engagement depends on worn components being replaced before they compromise your entire transmission system. This countershaft bushing maintains critical clearances between 1st and reverse gears, preventing grinding, slippage, and...DS194135- SKU:
- DS194135
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- BRONZE
- TYPE:
- REVERSE
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- FIRST GEAR
- UNITS:
- EACH
$33.95 -
EASTERN MOTORCYCLE PARTS Shifter Fork Shaft A-34140-36
EASTERN MOTORCYCLE PARTS
$35.95A worn or bent shifter fork shaft directly impacts shift precision and speed—critical factors whether you're racing or enjoying spirited riding. This EASTERN MOTORCYCLE PARTS unit restores crisp, reliable gear engagement, eliminating the sluggish or...DS194214- SKU:
- DS194214
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- SHIFT FORK SHAFT
- TRANSMISSION TYPE:
- 4 SPEED
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$35.95 -
EASTERN MOTORCYCLE PARTS Bronze Bushing - 33445-89 A-33445-89
EASTERN MOTORCYCLE PARTS
$14.95Bronze bushings are critical wear components that reduce friction and noise in pivot points, linkages, and suspension systems. A quality bushing like this Eastern Motorcycle Parts unit ensures smooth operation and extends the service life of connected...21100453- SKU:
- 21100453
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- BRONZE
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY COVER
- UNITS:
- EACH
$14.95 -
EASTERN MOTORCYCLE PARTS Bronze Bushing - 33446-94 A-33446-94
EASTERN MOTORCYCLE PARTS
$20.95Worn or damaged bushings compromise your motorcycle's handling precision and accelerate wear on connected components. This EASTERN MOTORCYCLE PARTS bronze bushing restores proper clearance and alignment, ensuring smooth pivot action and extending the...21100454- SKU:
- 21100454
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- BRONZE
- TYPE:
- INNER PRIMARY COVER
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$20.95 -
EASTERN MOTORCYCLE PARTS Bearing - Clutch Hub A-37906-90
EASTERN MOTORCYCLE PARTS
$82.95A worn or failing clutch hub bearing compromises your bike's power delivery and creates safety risks on the track or street. The EASTERN MOTORCYCLE PARTS Bearing - Clutch Hub A-37906-90 is a precision replacement that restores smooth engagement and...11320285- SKU:
- 11320285
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- TYPE:
- CLUTCH HUB
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
$82.95 -
Rekluse TorqDrive Clutch Kit for 2014-2019 Indian Chieftain RMS-2816100
REKLUSE
$599.00If you're running a big-displacement V-twin in your Chieftain, your OEM clutch is likely working harder than it should be. The Rekluse TorqDrive clutch solves this by allowing up to six additional friction discs, dramatically increasing torque capacity...11300433- SKU:
- 11300433
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
- RIDING STYLE:
- STREET
- MODEL:
- TORQDRIVE®
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$599.00 -
Rekluse Slave Cylinder Kit for Harley-Davidson Touring and Softail Models 2017-2021 RMS-2415050
REKLUSE
$329.00If you're running a modern Harley-Davidson Touring or Softail, clutch lever fatigue and inconsistent engagement can limit your control and comfort during long rides or aggressive riding. The Rekluse Slave Cylinder Kit RMS-2415050 replaces weak OEM...11321394- SKU:
- 11321394
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- SLAVE CYLINDER
- TYPE:
- CLUTCH
$329.00 -
Rekluse Slave Cylinder Kit for 2013-2016 Harley-Davidson Touring and Softail Models RMS-2415051
REKLUSE
$329.00Harley touring and cruising demands comfort on long rides, and a heavy clutch pull fatigues your hand and arm without reason. The Rekluse Slave Cylinder Kit reduces clutch effort by over 20% while expanding your friction zone, giving you smoother...11321477- SKU:
- 11321477
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SLAVE CYLINDER
- TYPE:
- CLUTCH
- UNITS:
- KIT
$329.00 -
Rekluse RadiusX Clutch Kit for 2015-2020 Harley-Davidson Big Twin Hydraulic Clutch RMS-6205
REKLUSE
$1,179.00If you're tired of managing clutch engagement in stop-and-go riding or worrying about stalling in traffic, the Rekluse RadiusX delivers the precision control and reliability you need. This hydraulic clutch kit eliminates the guesswork from gear...11300314- SKU:
- 11300314
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- MODEL:
- RADIUSX
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$1,179.00 -
Rekluse RadiusX Clutch Kit for 2017-2022 KTM 500 EXC-F RMS-6231
REKLUSE
$949.00The Rekluse RadiusX clutch eliminates the inconsistency of manual engagement, giving you precise power delivery and eliminating stalls when you need reliability most. Whether you're pushing hard on technical terrain or managing shock loads, this...11300315- SKU:
- 11300315
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- PRODUCT NAME:
- CLUTCH KIT
- MODEL:
- RADIUSX
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$949.00 -
Rekluse RadiusX Clutch Kit for 2017-2023 KTM 500 EXC-F Six Days RMS-6215007
REKLUSE
$949.00The Rekluse RadiusX Clutch eliminates the learning curve and physical fatigue of traditional clutch control, allowing you to focus entirely on throttle management and line choice. Whether you're tackling technical terrain at a snail's pace or powering...11300316- SKU:
- 11300316
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- MODEL:
- RADIUSX
- RIDING STYLE:
- STREET
$949.00 -
DRAG SPECIALTIES Primary Tensioner Kit 15-0937K
DRAG SPECIALTIES
$102.77A worn or outdated primary tensioner system compromises both reliability and performance, introducing slack that affects power transfer and increases wear on your primary chain. The DRAG Specialties Primary Tensioner Kit 15-0937K gives you a complete,...11200160- SKU:
- 11200160
- Availability:
- Ships Same Business Day
- Weight:
- 1.08 LBS
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY CHAIN
- UNITS:
- KIT
- PRODUCT NAME:
- CHAIN ADJUSTER KIT
$102.77 -
DRAG SPECIALTIES Lower Belt Guard - 06 FXD/FXDWG - Chrome G32-0325
DRAG SPECIALTIES
$80.20Belt guards protect your Dyna's drivetrain from road debris, moisture, and damage while adding polished aesthetics to your machine. This Drag Specialties lower belt guard bolts directly onto your 06 FXD/FXDWG with zero modifications—a practical upgrade...12020072- SKU:
- 12020072
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- MOUNTING POSITION:
- LOWER
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
- TYPE:
- REAR BELT
$80.20Qty in Cart: 0Quantity:Price:$80.20Subtotal:
