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!
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- Price
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DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.360" - M8 Touring DH-29900041
DARKHORSE MOTOR COMPANY
$36.95Precision in your drivetrain starts with proper spacing. This DARKHORSE MOTOR COMPANY sprocket shaft spacer maintains exact OEM tolerances, ensuring optimal chain alignment and reducing premature...11060246- SKU:
- 11060246
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.04" - M8 Touring DH-24008-97
DARKHORSE MOTOR COMPANY
$39.95Precision sprocket alignment is critical to drivetrain longevity and performance consistency, especially in high-load touring applications. This DARKHORSE MOTOR COMPANY spacer maintains exact OEM...11060247- SKU:
- 11060247
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
$39.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.098" - Touring DH-24008-99
DARKHORSE MOTOR COMPANY
$36.95Proper sprocket shaft alignment is critical to drivetrain longevity and performance—even small tolerances can cause premature wear, noise, and power loss. This OEM-specification spacer ensures your...11060248- SKU:
- 11060248
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.540" - Touring DH-24008-03
DARKHORSE MOTOR COMPANY
$36.95Proper sprocket shaft alignment is critical for consistent power delivery and drivetrain longevity, and this spacer ensures your touring bike maintains factory-spec dimensions. DARKHORSE MOTOR...11060249- SKU:
- 11060249
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.560" - Big Twin DH-24009-06
DARKHORSE MOTOR COMPANY
$36.95A properly spaced sprocket shaft is critical to maintaining chain alignment and preventing premature wear on your drivetrain. This OEM-spec spacer ensures your Big Twin runs with factory precision,...11060250- SKU:
- 11060250
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 0.894" - Softail/Dyna DH-24038-99
DARKHORSE MOTOR COMPANY
$36.95Proper sprocket shaft alignment is critical for smooth power delivery and chain longevity on your Softail or Dyna. This OEM-spec spacer ensures precise positioning, eliminating binding and premature...11060251- SKU:
- 11060251
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 0.987" - Softail DH-24039--01A
DARKHORSE MOTOR COMPANY
$36.95Proper sprocket shaft alignment is critical for smooth power delivery and extended drivetrain life on your Softail. This precision spacer maintains exact OEM specifications to prevent binding,...11060252- SKU:
- 11060252
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.430" - Softail DH-24039-03
DARKHORSE MOTOR COMPANY
$36.95Proper sprocket shaft alignment is critical for chain longevity and smooth power delivery in Softail applications. This OEM-specification spacer ensures precise clearance tolerances, eliminating play...11060253- SKU:
- 11060253
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.116" - Big Twin DH-11887
DARKHORSE MOTOR COMPANY
$36.95A properly spaced sprocket shaft is critical to maintaining correct chain alignment and preventing premature wear on your drivetrain. This precision spacer ensures your Big Twin engine delivers power...11060254- SKU:
- 11060254
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
$36.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 0.672" - M8 Touring DH-24002-70
DARKHORSE MOTOR COMPANY
$39.95Precision sprocket alignment is critical to drivetrain efficiency and component longevity. This DARKHORSE MOTOR COMPANY spacer maintains exact shaft positioning to eliminate lateral play and ensure...11060256- SKU:
- 11060256
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$39.95 -
DARKHORSE MOTOR COMPANY Sprocket Shaft Spacer - 1.331" - Dyna DH-24038-03
DARKHORSE MOTOR COMPANY
$36.95Proper sprocket shaft alignment is critical to chain drive longevity and power transmission efficiency. This OEM-spec spacer eliminates unwanted lateral movement that can lead to premature wear,...11060257- SKU:
- 11060257
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
$36.95 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - Chrome - 102 Links MDS530POS102L2
DRAG SPECIALTIES
$169.79A quality chain is fundamental to reliable power transfer in any high-performance drivetrain, and compromising on this component invites premature wear and catastrophic failure. The Drag Specialties...12220661- SKU:
- 12220661
- Availability:
- Ships Same Business Day
- Weight:
- 4.80 LBS
$169.79 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - Chrome - 104 Links MDS530POS104L2
DRAG SPECIALTIES
$172.91A properly maintained chain is the foundation of reliable power transfer in any high-performance drivetrain. The Drag Specialties 530 Series O-Ring Chain delivers the durability and tensile strength...12220662- SKU:
- 12220662
- Availability:
- Ships Same Business Day
- Weight:
- 4.85 LBS
$172.91 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - Chrome - 106 Links MDS530POS106L2
DRAG SPECIALTIES
$176.07A 530 O-ring chain demands precision engineering to handle the shock loads and constant acceleration of drag racing. This Drag Specialties unit delivers quad-pin riveting and factory pre-stretching...12220663- SKU:
- 12220663
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$176.07 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - Chrome - 110 Links MDS530POS110L2
DRAG SPECIALTIES
$182.31A reliable chain is the foundation of any high-performance drivetrain, and the Drag Specialties 530 Series delivers the durability you need for sustained acceleration and consistent power transfer...12220664- SKU:
- 12220664
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
$182.31 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - Chrome - 112 Links MDS530POS112L2
DRAG SPECIALTIES
$185.46A 530 O-ring chain delivers the reliability and longevity your drag racing setup demands. The quad-pin riveting and sealed O-rings keep wear and friction minimal, even under the extreme acceleration...12220665- SKU:
- 12220665
- Availability:
- Ships Same Business Day
- Weight:
- 5.22 LBS
$185.46 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - Chrome - 120 Links MDS530POS120L2
DRAG SPECIALTIES
$198.00A 530 O-ring chain demands precision engineering to handle the demands of high-RPM acceleration and sustained power delivery. The Drag Specialties 530 Series delivers quad-pin riveting and O-ring...12220666- SKU:
- 12220666
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$198.00 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - 102 Links MDS530POX102L2
DRAG SPECIALTIES
$155.82A chain is only as strong as its weakest link—and this one won't fail you. The Drag Specialties 530 Series delivers factory pre-stretch and quad-pin riveting to handle sustained high RPM without...12220667- SKU:
- 12220667
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$155.82 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - 104 Links MDS530POX104L2
DRAG SPECIALTIES
$158.68A chain is only as reliable as its weakest link—literally. The DRAG SPECIALTIES 530 Series O-Ring Chain delivers the durability and strength demanded by racers and high-performance riders who can't...12220668- SKU:
- 12220668
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$158.68 -
DRAG SPECIALTIES 530 Series - O-Ring Chain - 106 Links MDS530POX106L2
DRAG SPECIALTIES
$161.55A reliable 530 chain is the backbone of any high-performance drivetrain, and the Drag Specialties O-Ring Series delivers the durability and strength demanded by serious racers and builders. The...12220669- SKU:
- 12220669
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$161.55
