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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HAWG HALTERS Sprocket Brake Caliper - Left - Chrome RKSBLCC351
HAWG HALTERS
$799.00If you're running a high-performance brake setup, you need a caliper engineered for consistent stopping power and reliable durability under track conditions. The HAWG HALTERS Sprocket Brake Caliper...12100111- SKU:
- 12100111
- Availability:
- Ships Same Business Day
- Weight:
- 10.60 LBS
- PRODUCT NAME:
- BRAKE CALIPER
- UNITS:
- KIT
- TYPE:
- SPROCKET
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- LEFT SIDE REAR
- TOOTH COUNT:
- 51
$799.00 -
DP BRAKES Clutch Kit DPHK607
DP BRAKES
$394.95Stock clutch plates fade under sustained racing conditions, robbing you of consistent bite and reliable power transfer when it matters most. The DP BRAKES Clutch Kit DPHK607 replaces those...11313611- SKU:
- 11313611
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- FEATURES:
- INCLUDES SPRINGS
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$394.95Qty in Cart: 0Quantity:Price:$394.95Subtotal: -
DP BRAKES Clutch Kit DPHK600
DP BRAKES
$304.95A clutch that slips under hard acceleration or fades under sustained track conditions will cost you lap time and reliability. The DP BRAKES Clutch Kit DPHK600 is engineered to eliminate both,...11313373- SKU:
- 11313373
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- STYLE:
- STANDARD
$304.95 -
DP BRAKES Clutch Kit DPHK601
DP BRAKES
$230.95A worn or slipping clutch is a silent performance killer—it robs you of power delivery, makes gear shifts unpredictable, and forces premature replacement cycles. The DP BRAKES Clutch Kit DPHK601...11313374- SKU:
- 11313374
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- PRODUCT NAME:
- CLUTCH KIT
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- UNITS:
- KIT
$230.95 -
DRAG SPECIALTIES Rear Pulley Insert - 70-Tooth - BT '84-'99 80039
DRAG SPECIALTIES
$64.15Your Harley's belt drive system depends on precision fitment and reliable power transfer—any slack or misalignment directly impacts performance and component lifespan. The DRAG SPECIALTIES Rear...12010539- SKU:
- 12010539
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 70
- TYPE:
- PULLEY
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- MODEL:
- PRECISION-FORMED
$64.15Qty in Cart: 0Quantity:Price:$64.15Subtotal: -
DRAG SPECIALTIES Rear Pulley Insert - 65-Tooth - BT '84-'99 75005
DRAG SPECIALTIES
$64.15Maintaining precise belt drive geometry is critical to reliable power delivery and component longevity on classic Big Twin Harleys. This DRAG Specialties rear pulley insert restores OEM fitment and...12010540- SKU:
- 12010540
- Availability:
- Ships Same Business Day
- Weight:
- 1.67 LBS
- COLOR/FINISH:
- CHROME
- MODEL:
- PRECISION-FORMED
- PRODUCT NAME:
- COVER
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TOOTH COUNT:
- 65
- TYPE:
- PULLEY
$64.15Qty in Cart: 0Quantity:Price:$64.15Subtotal: -
DRAG SPECIALTIES Rear Wheel Sprocket - 46-Tooth - Chrome 19430P
DRAG SPECIALTIES
$96.25A worn or damaged rear sprocket directly impacts your bike's acceleration, top speed, and overall drivetrain efficiency. The DRAG SPECIALTIES 46-Tooth Rear Wheel Sprocket delivers reliable...12100957- SKU:
- 12100957
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- MATERIAL:
- CARBON STEEL
- CHAIN SIZE:
- 530
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- OFFSET IMPERIAL:
- 0.46'
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
$96.25Qty in Cart: 0Quantity:Price:$96.25Subtotal: -
DRAG SPECIALTIES Rear Wheel Sprocket - 49-Tooth - Chrome 19364P
DRAG SPECIALTIES
$89.83A worn or damaged rear sprocket directly impacts your acceleration, top-end performance, and overall drivetrain efficiency. The DRAG SPECIALTIES 49-tooth rear sprocket delivers the durability and...12100603- SKU:
- 12100603
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- MATERIAL:
- CARBON STEEL
- CHAIN SIZE:
- 530
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- OFFSET IMPERIAL:
- CENTERED
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$89.83 -
DRAG SPECIALTIES Rear Wheel Sprocket - 51-Tooth - Chrome 70741P
DRAG SPECIALTIES
$96.25A properly matched rear sprocket is fundamental to your bike's acceleration, top speed, and overall drivetrain efficiency. The DRAG SPECIALTIES 51-tooth rear sprocket delivers the durability and...12100604- SKU:
- 12100604
- Availability:
- Ships Same Business Day
- Weight:
- 4.80 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- CHROME
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- OFFSET IMPERIAL:
- CENTERED
- RIDING STYLE:
- STREET
$96.25 -
DRAG SPECIALTIES Rear Wheel Sprocket - 51-Tooth - Chrome 71891DP
DRAG SPECIALTIES
$96.25A worn or damaged rear sprocket directly impacts acceleration, top-end performance, and drivetrain efficiency. Whether you're running a high-revving build or need a reliable OEM replacement, the DRAG...12100606- SKU:
- 12100606
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- CHAIN SIZE:
- 530
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- STYLE:
- FLAT
- TYPE:
- DRIVE
- MATERIAL:
- CARBON STEEL
- COLOR/FINISH:
- CHROME
- OFFSET IMPERIAL:
- CENTERED
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$96.25 -
DRAG SPECIALTIES Rear Wheel Sprocket - 48-Tooth - Chrome 19093P
DRAG SPECIALTIES
$96.25A worn or damaged rear sprocket directly impacts your bike's acceleration, top-end speed, and overall drivetrain efficiency. The DRAG SPECIALTIES 48-tooth sprocket delivers reliable performance with...12100608- SKU:
- 12100608
- Availability:
- Ships Same Business Day
- Weight:
- 4.79 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- CARBON STEEL
- OFFSET IMPERIAL:
- 0.23'
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$96.25Qty in Cart: 0Quantity:Price:$96.25Subtotal: -
DRAG SPECIALTIES Rear Sprocket - Chrome - Flat - 48-Tooth 16421P
DRAG SPECIALTIES
$96.25If you're running a belt-drive system and need the durability and efficiency gains of chain drive, this 48-tooth sprocket is your direct conversion solution. Chrome plating provides corrosion...12100364- SKU:
- 12100364
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- RIDING STYLE:
- STREET
- STYLE:
- FLAT
- BORE SIZE IMPERIAL:
- 2.220'
- COLOR/FINISH:
- CHROME
- OFFSET IMPERIAL:
- CENTERED
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- TYPE:
- CONVERSION
- CHAIN SIZE:
- 530
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- TYPE:
- DRIVE
- UNITS:
- EACH
$96.25 -
DRAG SPECIALTIES Rear Sprocket - Chrome - Flat - 49-Tooth 16422P
DRAG SPECIALTIES
$88.76If you're converting from belt drive to chain drive on your cruiser or custom build, this DRAG Specialties rear sprocket delivers the strength and precision you need for reliable power transfer. The...12100365- SKU:
- 12100365
- Availability:
- Ships Same Business Day
- Weight:
- 4.31 LBS
$88.76 -
DRAG SPECIALTIES Rear Sprocket - Chrome - Flat - 51-Tooth 16423P
DRAG SPECIALTIES
$96.25If you're converting your cruiser or touring bike from belt drive to chain drive, this 51-tooth rear sprocket is engineered to deliver the exact gearing you need for smooth power delivery and...12100366- SKU:
- 12100366
- Availability:
- Ships Same Business Day
- Weight:
- 4.91 LBS
- OFFSET IMPERIAL:
- CENTERED
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- TYPE:
- CONVERSION
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 2.220'
- MATERIAL:
- STEEL
- STYLE:
- FLAT
- TYPE:
- DRIVE
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$96.25Qty in Cart: 0Quantity:Price:$96.25Subtotal: -
DRAG SPECIALTIES Rear Sprocket - Chrome - Dished - 49-Tooth 16425P
DRAG SPECIALTIES
$89.83If you're converting from belt drive to chain drive, you need a sprocket engineered for durability and precision engagement. This DRAG SPECIALTIES rear sprocket delivers the direct power transfer and...12100368- SKU:
- 12100368
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- CHAIN SIZE:
- 530
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 2.220'
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- COLOR/FINISH:
- CHROME
- OFFSET IMPERIAL:
- 0.230'
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- TYPE:
- CONVERSION
$89.83Qty in Cart: 0Quantity:Price:$89.83Subtotal: -
DRAG SPECIALTIES Rear Sprocket - Chrome - Dished - 51-Tooth 16426P
DRAG SPECIALTIES
$96.25If you're converting your bike from belt drive to chain drive, you need a sprocket engineered to handle the demands of your drivetrain conversion. This Drag Specialties rear sprocket delivers the...12100369- SKU:
- 12100369
- Availability:
- Ships Same Business Day
- Weight:
- 4.88 LBS
- OFFSET IMPERIAL:
- 0.230'
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- TYPE:
- CONVERSION
- BORE SIZE IMPERIAL:
- 2.220'
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$96.25Qty in Cart: 0Quantity:Price:$96.25Subtotal: -
DRAG SPECIALTIES Rear Sprocket - Chrome - Dished - 46-Tooth 16431P
DRAG SPECIALTIES
$89.83If you're transitioning from belt drive to a chain-driven system, sprocket selection is critical to maintaining proper gear ratios and ensuring reliable power delivery. This DRAG SPECIALTIES rear...12100377- SKU:
- 12100377
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- OFFSET IMPERIAL:
- 0.230'
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- TYPE:
- CONVERSION
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- BORE SIZE IMPERIAL:
- 2.220'
- MATERIAL:
- STEEL
- TYPE:
- DRIVE
$89.83Qty in Cart: 0Quantity:Price:$89.83Subtotal: -
DRAG SPECIALTIES Rear Wheel Sprocket - 46-Tooth - Chrome 16427P
DRAG SPECIALTIES
$88.76A worn or damaged rear sprocket directly impacts your bike's acceleration, chain engagement, and overall drivetrain efficiency. The DRAG SPECIALTIES 46-tooth sprocket delivers precise tooth geometry...12100379- SKU:
- 12100379
- Availability:
- Ships Same Business Day
- Weight:
- 4.24 LBS
$88.76 -
DRAG SPECIALTIES Rear Wheel Sprocket - 46-Tooth - Dished 16428P
DRAG SPECIALTIES
$96.25A worn or damaged rear sprocket directly impacts your chain tension, acceleration response, and overall drivetrain efficiency. The DRAG SPECIALTIES 46-Tooth Rear Wheel Sprocket delivers the...12100381- SKU:
- 12100381
- Availability:
- Ships Same Business Day
- Weight:
- 4.32 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- OFFSET IMPERIAL:
- 0.23'
- PRODUCT NAME:
- SPROCKET
- TYPE:
- DRIVE
- UNITS:
- EACH
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 46
$96.25 -
DRAG SPECIALTIES '84-'90 Sportster Clutch Hub 64167
DRAG SPECIALTIES
$121.85If you're running a high-mileage Sportster or pushing your engine harder than stock, clutch hub failure isn't just an inconvenience—it's a catastrophic loss of power delivery. This Drag Specialties...11321120- SKU:
- 11321120
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- PRODUCT NAME:
- INNER HUB
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$121.85Qty in Cart: 0Quantity:Price:$121.85Subtotal:
