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 Steel Plate 1131-0447
DRAG SPECIALTIES
$7.37If you're running a high-performance transmission under sustained load, clutch plate quality directly impacts your shift consistency and reliability. The DRAG SPECIALTIES Steel Plate 1131-0447 is...11310447- SKU:
- 11310447
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- DRIVE PLATE
$7.37 -
DRAG SPECIALTIES Steel Plate 1131-0448
DRAG SPECIALTIES
$7.37If you're running a high-performance transmission under sustained load or extreme track conditions, clutch plate quality directly impacts your shift consistency and drivetrain longevity. The DRAG...11310448- SKU:
- 11310448
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- PRODUCT NAME:
- DRIVE PLATE
- TYPE:
- CLUTCH
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$7.37 -
DRAG SPECIALTIES Aramid Outer Drive Plate SK-8-DS
DRAG SPECIALTIES
$11.61If you're running a high-performance clutch system, the integrity of your drive plate directly impacts power delivery and longevity. The DRAG SPECIALTIES Aramid Outer Drive Plate SK-8-DS is...11310532- SKU:
- 11310532
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- STYLE:
- OUTER
- TYPE:
- CLUTCH
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- FRICTION PLATE
$11.61 -
DRAG SPECIALTIES Organic Outer Drive Plate SK-8RQ
DRAG SPECIALTIES
$12.67The DRAG SPECIALTIES Organic Outer Drive Plate SK-8RQ is engineered for riders who demand reliable power transfer and consistent clutch performance under demanding conditions. This single-sided...11310533- SKU:
- 11310533
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- STYLE:
- OUTER
- TYPE:
- CLUTCH
- PRODUCT NAME:
- FRICTION PLATE
- MATERIAL:
- ORGANIC
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$12.67 -
DRAG SPECIALTIES Clutch Plate Set 11313614
DRAG SPECIALTIES
$136.69If you're running your clutch hard at the strip or on the street, OEM plates won't cut it. This DRAG SPECIALTIES clutch plate set delivers the heat resistance and durability you need for consistent,...11313614- SKU:
- 11313614
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- UNITS:
- SET OF 10
- PRODUCT NAME:
- CLUTCH PLATE
- RIDING STYLE:
- STREET
- MATERIAL:
- FIBER
$136.69 -
DRAG SPECIALTIES Clutch Plate Set 11313615
DRAG SPECIALTIES
$54.01A clutch plate set is only as good as its ability to handle sustained heat and deliver consistent engagement—two areas where many OEM replacements fall short. The DRAG SPECIALTIES Clutch Plate Set...11313615- SKU:
- 11313615
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH PLATE
- UNITS:
- SET OF 9
- MATERIAL:
- STEEL
$54.01 -
DRAG SPECIALTIES Clutch Springs 11313616
DRAG SPECIALTIES
$22.21Worn or weakened clutch springs compromise your bike's power delivery and shift quality—replacing them restores proper engagement pressure and eliminates slippage under load. DRAG Specialties springs...11313616- SKU:
- 11313616
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- CLUTCH SPRING
- RIDING STYLE:
- STREET
- UNITS:
- SET OF 3
$22.21 -
DRAG SPECIALTIES Rear Drive Belt - 137-Tooth - 1 1/8" BDL SPC-137-118
DRAG SPECIALTIES
$311.15A rear drive belt that fails mid-season costs you races and credibility. The DRAG SPECIALTIES 137-Tooth belt delivers 33% more tensile strength than conventional aramid designs, keeping power...12040085- SKU:
- 12040085
- Availability:
- Ships Same Business Day
- Weight:
- 2.11 LBS
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 137
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
$311.15 -
DRAG SPECIALTIES Rear Drive Belt - 126-Tooth - 1 1/2" BDL SPC-126
DRAG SPECIALTIES
$337.57A reliable rear drive belt is non-negotiable for consistent power transfer and predictable performance. This DRAG SPECIALTIES belt delivers 33% more tensile strength than conventional aramid designs,...12040037- SKU:
- 12040037
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 126
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$337.57 -
DRAG SPECIALTIES Rear Drive Belt - 130-Tooth - 1 1/2" BDL SPC-130
DRAG SPECIALTIES
$337.57Drag Specialties rear drive belts are engineered to handle the extreme demands of high-performance and racing applications where standard belts fail. The carbon fiber reinforcement and...12040043- SKU:
- 12040043
- Availability:
- Ships Same Business Day
- Weight:
- 2.38 LBS
- TOOTH COUNT:
- 130
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$337.57 -
DRAG SPECIALTIES Rear Drive Belt - 130-Tooth - 1" BDL SPC-130-1
DRAG SPECIALTIES
$258.48A quality rear drive belt is non-negotiable for reliable power transmission in drag racing and high-performance applications. This DRAG SPECIALTIES belt delivers superior tensile strength and wear...12040045- SKU:
- 12040045
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- BELT
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 130
- WIDTH IMPERIAL:
- 1'
$258.48 -
DRAG SPECIALTIES Rear Drive Belt - 132-Tooth - 1" BDL SPC-132-1
DRAG SPECIALTIES
$258.48A rear drive belt failure mid-race costs you more than just time—it costs you wins. The DRAG SPECIALTIES 132-Tooth belt delivers the tensile strength and durability your high-performance drivetrain...12040048- SKU:
- 12040048
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 132
- WIDTH IMPERIAL:
- 1'
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$258.48 -
DRAG SPECIALTIES Rear Drive Belt - 135-Tooth - 1 1/2" BDL SPC-135
DRAG SPECIALTIES
$337.57A reliable rear drive belt is non-negotiable for consistent power transfer and race-day reliability. This Drag Specialties unit delivers 33% greater tensile strength than conventional belts, meaning...12040054- SKU:
- 12040054
- Availability:
- Ships Same Business Day
- Weight:
- 2.47 LBS
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 135
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$337.57 -
DRAG SPECIALTIES Rear Drive Belt - 135-Tooth - 1" BDL SPC-135-1
DRAG SPECIALTIES
$258.48A quality rear drive belt is critical for reliable power transfer in high-performance applications, and OEM belts often fall short under aggressive driving conditions. The DRAG SPECIALTIES Rear Drive...12040056- SKU:
- 12040056
- Availability:
- Ships Same Business Day
- Weight:
- 1.92 LBS
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- BELT
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 135
- WIDTH IMPERIAL:
- 1'
$258.48 -
DRAG SPECIALTIES Rear Drive Belt - 136-Tooth - 1 1/8" BDL SPC-136-118
DRAG SPECIALTIES
$311.15A primary drive belt failure mid-race or mid-ride costs you time and money—neither of which you can afford to lose. The DRAG SPECIALTIES Rear Drive Belt delivers the tensile strength and durability...12040059- SKU:
- 12040059
- Availability:
- Ships Same Business Day
- Weight:
- 2.09 LBS
- TOOTH COUNT:
- 136
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
$311.15 -
DRAG SPECIALTIES Rear Drive Belt - 136-Tooth - 1" BDL SPC-136-1
DRAG SPECIALTIES
$258.48A reliable rear drive belt is critical to maintaining consistent power delivery and avoiding catastrophic drivetrain failure. The DRAG SPECIALTIES 136-Tooth belt combines carbon fiber reinforcement...12040060- SKU:
- 12040060
- Availability:
- Ships Same Business Day
- Weight:
- 1.92 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 136
- WIDTH IMPERIAL:
- 1'
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$258.48 -
DRAG SPECIALTIES Rear Drive Belt - 139-Tooth - 1 1/8" BDL SPC-139-118
DRAG SPECIALTIES
$311.15A reliable rear drive belt is critical for consistent power delivery and dependable performance, whether you're on the track or the street. The DRAG SPECIALTIES 139-Tooth belt combines carbon fiber...12040063- SKU:
- 12040063
- Availability:
- Ships Same Business Day
- Weight:
- 2.02 LBS
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 139
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$311.15 -
DRAG SPECIALTIES Rear Drive Belt - 139-Tooth - 1" BDL SPC-139-1
DRAG SPECIALTIES
$258.48A belt failure mid-race or mid-ride isn't an option. The DRAG SPECIALTIES Rear Drive Belt delivers the tensile strength and durability you need to keep power flowing reliably to the wheel, with...12040064- SKU:
- 12040064
- Availability:
- Ships Same Business Day
- Weight:
- 1.91 LBS
- TOOTH COUNT:
- 139
- WIDTH IMPERIAL:
- 1'
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$258.48 -
DRAG SPECIALTIES Rear Drive Belt - 131-Tooth - 1" PCC-131-1
DRAG SPECIALTIES
$181.95A reliable rear drive belt is non-negotiable for consistent power delivery and trouble-free operation on the track or strip. The DRAG SPECIALTIES 131-Tooth belt delivers 33% greater tensile strength...12040112- SKU:
- 12040112
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1'
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
- TOOTH COUNT:
- 131
- TYPE:
- REAR DRIVE
$181.95 -
DRAG SPECIALTIES Rear Drive Belt - 133-Tooth - 24mm BDL SPC-133-24
DRAG SPECIALTIES
$258.48A reliable rear drive belt is non-negotiable for consistent power delivery and longevity in high-performance applications. The DRAG SPECIALTIES 133-Tooth belt combines carbon fiber reinforcement with...12040092- SKU:
- 12040092
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 133
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$258.48
