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 Kick Pedal Bolt Kit DS240985
DRAG SPECIALTIES
$8.19Kit includes chrome-plated bolt, pedal bushing, spring washer and lock washerDS240985- SKU:
- DS240985
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- TYPE:
- KICK PEDAL
- PRODUCT NAME:
- BOLT KIT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$8.19 -
DRAG SPECIALTIES Primary Chain - 428-2 x 82 C226T3/002
DRAG SPECIALTIES
$145.18Improved fatigue resistance, Pre-loaded to reduce initial elongation, Endless construction using high-quality raw materials for long life, Made in Italy11200283- SKU:
- 11200283
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- NUMBER OF LINKS:
- 82
$145.18 -
DRAG SPECIALTIES '91-'19 Sportster Clutch Hub 64141
DRAG SPECIALTIES
$118.40Improved inner clutch hub with reinforced insert, Accepts all OEM components11321119- SKU:
- 11321119
- Availability:
- Ships Same Business Day
- Weight:
- 2.01 LBS
- TYPE:
- CLUTCH
- PRODUCT NAME:
- INNER HUB
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$118.40 -
DRAG SPECIALTIES Kickstarter Kit 290261-BX-LB2
DRAG SPECIALTIES
$305.86Includes 16-tooth mainshaft starter gear, 24-tooth starter crank gear, flat rubber kick pedal, chrome forged kicker arm, return spring and highly chromed transmission end cover, Equal or superior to stock components, Crank gear and mainshaft gear...DS241027- SKU:
- DS241027
- Availability:
- Ships Same Business Day
- Weight:
- 7.81 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- KICKSTARTER KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- TYPE:
- 4-SPEED
$305.86 -
DRAG SPECIALTIES Rail Kick Pedal 17-0953JD-BC2
DRAG SPECIALTIES
$55.57Rail design matches our other rail accessories, Includes the pedal bushing and spring waterDS241055- SKU:
- DS241055
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- KICK PEDAL
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- TYPE:
- BOLT-ON
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$55.57 -
DRAG SPECIALTIES Rear Sprocket Spacer - .30" 26-0128-S30-SC2
DRAG SPECIALTIES
$18.67Zinc-plated steel spacer shims for rear sprocket or belt pulley, Used often when installing a wider rear tire, Longer bolts may be required when using spacers.78055052- SKU:
- 78055052
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- TYPE:
- PULLEY
- WIDTH IMPERIAL:
- 0.300'
- PRODUCT NAME:
- SPACER
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- SPROCKET
- UNITS:
- EACH
$18.67Qty in Cart: 0Quantity:Price:$18.67Subtotal: -
DRAG SPECIALTIES Sprocket Cover - Chrome - '86-'90 XL 301780-HC12
DRAG SPECIALTIES
$84.41High-quality cast aluminum construction, Mount with existing OEM mounting hardwareDS325288- SKU:
- DS325288
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- SPROCKET
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$84.41 -
DRAG SPECIALTIES Chrome Inspection Cover 33-0007H-BC216
DRAG SPECIALTIES
$31.88Chrome-plated eagle and the "Eagle Spirit" script recessed into cover surfaceDS325291- SKU:
- DS325291
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- COLOR/FINISH:
- CHROME
- STYLE:
- EAGLE SPIRIT
- UNITS:
- EACH
- MOUNTING STYLE:
- 4 HOLE
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
- PRODUCT NAME:
- INSPECTION COVER
$31.88 -
DRAG SPECIALTIES Chrome Mousetrap Eliminator Bracket 13603
DRAG SPECIALTIES
$22.61Allows use of 68-84 style Big Twin clutch cables on Knucklehead/Flathead modelsDS325336- SKU:
- DS325336
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- ELIMINATOR BRACKET
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- MATERIAL:
- STEEL
$22.61 -
DRAG SPECIALTIES Transmission Cover Bushings 290315-HC3
DRAG SPECIALTIES
$16.43Includes o-ring and bushings, Made in the U.S.A.DS325382- SKU:
- DS325382
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- KICKSTARTER CRANK
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 4 SPEED
- PRODUCT NAME:
- BUSHING
- UNITS:
- KIT
$16.43Qty in Cart: 0Quantity:Price:$16.43Subtotal: -
DRAG SPECIALTIES Transmission End Cover - Chrome - '36-'86 Big Twin 292070-BX-LB2
DRAG SPECIALTIES
$80.29Replacement end coverDS325521- SKU:
- DS325521
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION END
- MOUNTING STYLE:
- 8 HOLE
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$80.29Qty in Cart: 0Quantity:Price:$80.29Subtotal: -
DRAG SPECIALTIES Compensating Sprocket Nut - '99-'06 346216
DRAG SPECIALTIES
$21.79Replacement compensating nut for a smoother ride20173461- SKU:
- 20173461
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- NUT
- TYPE:
- COMPENSATING SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$21.79Qty in Cart: 0Quantity:Price:$21.79Subtotal: -
DRAG SPECIALTIES Rear Pulley Spacer - .375" 26-0128-S38
DRAG SPECIALTIES
$18.67Zinc-plated steel spacer shims for rear sprocket or belt pulley, Used often when installing a wider rear tire, Longer bolts may be required when using spacers.12010599- SKU:
- 12010599
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPACER
- UNITS:
- EACH
- TYPE:
- PULLEY
- TYPE:
- SPROCKET
- WIDTH IMPERIAL:
- 0.375'
$18.67 -
DRAG SPECIALTIES Organic Plates 1131-0424
DRAG SPECIALTIES
$132.82Designed to perform under extreme heat conditions, Allow smooth, precise shifting, 100% asbestos free, Can be run wet or dry, Made in the U.S.A.11310424- SKU:
- 11310424
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MATERIAL:
- ORGANIC
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- STYLE:
- OEM REPLACEMENT
- UNITS:
- SET OF 9
- PRODUCT NAME:
- FRICTION PLATE
$132.82 -
DRAG SPECIALTIES Rear Drive Belt - 139-Tooth - 1 1/2" BDL SPC-139
DRAG SPECIALTIES
$272.43Carbon fiber reinforced Goodyear engineered Falcon SPC™ belts offer up to 33 percent more tensile strength than conventional aramid reinforced belts, High-temperature rubber compound offers excellent flex and long service life, Fabric reinforced belt...12040062- SKU:
- 12040062
- Availability:
- Ships Same Business Day
- Weight:
- 2.43 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
- TOOTH COUNT:
- 139
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$272.43 -
DRAG SPECIALTIES 530 Series - O-Ring - Connecting Link - Clip DSCL530PO
DRAG SPECIALTIES
$8.40Replacement connecting link12250175- SKU:
- 12250175
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- CHAIN SIZE:
- 530
- PRODUCT NAME:
- CONNECTING LINK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 1
- SEAL TYPE:
- O-RING
- TYPE:
- CLIP
- COLOR/FINISH:
- CHROME
$8.40 -
DRAG SPECIALTIES Clutch Basket 148400
DRAG SPECIALTIES
$421.22Replacement clutch shell with starter gear11320697- SKU:
- 11320697
- Availability:
- Ships Same Business Day
- Weight:
- 9.70 LBS
- PRODUCT NAME:
- CLUTCH SHELL
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$421.22 -
DRAG SPECIALTIES Clutch Hub 148420
DRAG SPECIALTIES
$189.47Improved inner clutch hub with reinforced insert, Accepts all OEM components11320698- SKU:
- 11320698
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- INNER HUB
$189.47 -
DRAG SPECIALTIES Rear Drive Belt - 135-Tooth - 1 1/8" BDL SPC-135-118
DRAG SPECIALTIES
$250.59Carbon fiber reinforced Goodyear engineered Falcon SPC™ belts offer up to 33 percent more tensile strength than conventional aramid reinforced belts, High-temperature rubber compound offers excellent flex and long service life, Fabric reinforced belt...12040055- SKU:
- 12040055
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
- TOOTH COUNT:
- 135
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$250.59 -
DRAG SPECIALTIES Inner Primary Bearing 210202
DRAG SPECIALTIES
$97.80High-quality roller bearing comes with two retainer rings, Fits OEM and most aftermarket aluminum inner primaries11320005- SKU:
- 11320005
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY MAINSHAFT
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
$97.80
