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
-
On Sale
S&S CYCLE Final Drive Belt - 139-Tooth - 1 1/8" 106-0363
S&S CYCLE
MSRP: $278.95Now: $251.06Was: $278.95Made of super-strong Gates Carbon X3N material12040111- SKU:
- 12040111
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MATERIAL:
- X3N CARBON
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 139
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
MSRP: $278.95Now: $251.06Was: $278.95Qty in Cart: 0Quantity:Price:MSRP: $278.95Now: $251.06Was: $278.95Subtotal: -
On Sale
S&S CYCLE Final Drive Belt - 130-Tooth - 1 1/2" 106-0351
S&S CYCLE
MSRP: $292.95Now: $263.66Was: $292.95Made of super-strong Gates Carbon X3N material12040096- SKU:
- 12040096
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- MATERIAL:
- X3N CARBON
- PRODUCT NAME:
- BELT
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 130
MSRP: $292.95Now: $263.66Was: $292.95Qty in Cart: 0Quantity:Price:MSRP: $292.95Now: $263.66Was: $292.95Subtotal: -
DRAG SPECIALTIES 5-Hole - Chrome - Live to Ride Derby Cover 33-0065CA
DRAG SPECIALTIES
$79.26Feature a detailed plated eagle and banner, Script is recessed11070157- SKU:
- 11070157
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- STYLE:
- EAGLE WITH BANNER
- MODEL:
- LIVE TO RIDE
$79.26Qty in Cart: 0Quantity:Price:$79.26Subtotal: -
DRAG SPECIALTIES Bicycle Style Kick Pedal 17-0951-BC251
DRAG SPECIALTIES
$44.24Flat reinforced pedal, Includes swivelDS241049- SKU:
- DS241049
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- KICK PEDAL
- RIDING STYLE:
- STREET
- TYPE:
- BOLT-ON
$44.24 -
DRAG SPECIALTIES Transmission Pulley - 32-Tooth D26-0141-32
DRAG SPECIALTIES
$122.67Heat-treated steel construction12030015- SKU:
- 12030015
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 32
- TYPE:
- TRANSMISSION
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
$122.67Qty in Cart: 0Quantity:Price:$122.67Subtotal: -
On Sale
S&S CYCLE Final Drive Belt - 126-Tooth - 1 1/2" 106-0348
S&S CYCLE
MSRP: $287.95Now: $259.16Was: $287.95Made of super-strong Gates Carbon X3N material12040093- SKU:
- 12040093
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MATERIAL:
- X3N CARBON
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 126
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
MSRP: $287.95Now: $259.16Was: $287.95Qty in Cart: 0Quantity:Price:MSRP: $287.95Now: $259.16Was: $287.95Subtotal: -
On Sale
S&S CYCLE Final Drive Belt - 128-Tooth - 1 1/2" 106-0350
S&S CYCLE
MSRP: $287.95Now: $259.16Was: $287.95Made of super-strong Gates Carbon X3N material12040095- SKU:
- 12040095
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MATERIAL:
- X3N CARBON
- PRODUCT NAME:
- BELT
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- TOOTH COUNT:
- 128
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $287.95Now: $259.16Was: $287.95Qty in Cart: 0Quantity:Price:MSRP: $287.95Now: $259.16Was: $287.95Subtotal: -
On Sale
S&S CYCLE Final Drive Belt - 133-Tooth - 1 1/2" 106-0353
S&S CYCLE
MSRP: $292.95Now: $263.66Was: $292.95Made of super-strong Gates Carbon X3N material12040098- SKU:
- 12040098
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MATERIAL:
- X3N CARBON
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 133
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
MSRP: $292.95Now: $263.66Was: $292.95Qty in Cart: 0Quantity:Price:MSRP: $292.95Now: $263.66Was: $292.95Subtotal: -
On Sale
S&S CYCLE Final Drive Belt - 136-Tooth - 1 1/2" 106-0355
S&S CYCLE
MSRP: $308.95Now: $278.06Was: $308.95Made of super-strong Gates Carbon X3N material12040100- SKU:
- 12040100
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- TOOTH COUNT:
- 136
- RIDING STYLE:
- STREET
- MATERIAL:
- X3N CARBON
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $308.95Now: $278.06Was: $308.95Qty in Cart: 0Quantity:Price:MSRP: $308.95Now: $278.06Was: $308.95Subtotal: -
On Sale
S&S CYCLE Final Drive Belt - 128-Tooth - 1 1/8" 106-0358
S&S CYCLE
MSRP: $274.95Now: $247.46Was: $274.95Made of super-strong Gates Carbon X3N material12040103- SKU:
- 12040103
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 128
- WIDTH IMPERIAL:
- 1-1/8'
- TYPE:
- REAR DRIVE
- MATERIAL:
- X3N CARBON
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $274.95Now: $247.46Was: $274.95Qty in Cart: 0Quantity:Price:MSRP: $274.95Now: $247.46Was: $274.95Subtotal: -
On Sale
S&S CYCLE Final Drive Belt - 130-Tooth - 1 1/8" 106-0359
S&S CYCLE
MSRP: $284.95Now: $256.46Was: $284.95Made of super-strong Gates Carbon X3N material12040104- SKU:
- 12040104
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- MATERIAL:
- X3N CARBON
- PRODUCT NAME:
- BELT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 130
- WIDTH IMPERIAL:
- 1-1/8'
MSRP: $284.95Now: $256.46Was: $284.95Qty in Cart: 0Quantity:Price:MSRP: $284.95Now: $256.46Was: $284.95Subtotal: -
DRAG SPECIALTIES Rear Pulley Spacer - 1.250" 193089
DRAG SPECIALTIES
$65.47Used when installing a wide rear tire, Polished billet aluminum construction12010104- SKU:
- 12010104
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- RIDING STYLE:
- STREET
- TYPE:
- PULLEY
- COLOR/FINISH:
- RAW
- MATERIAL:
- BILLET ALUMINUM
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPACER
- WIDTH IMPERIAL:
- 1.125'
$65.47Qty in Cart: 0Quantity:Price:$65.47Subtotal: -
DRAG SPECIALTIES Rear Pulley Spacer - .062" 26-0128-S16
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.12010231- SKU:
- 12010231
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- SPROCKET
- UNITS:
- EACH
- PRODUCT NAME:
- SPACER
- WIDTH IMPERIAL:
- 0.062'
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- TYPE:
- PULLEY
$18.67 -
DRAG SPECIALTIES Rear Pulley Spacer - .500" 26-0128-S50
DRAG SPECIALTIES
$20.75Zinc-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.12010600- SKU:
- 12010600
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPACER
- WIDTH IMPERIAL:
- 0.500'
- COLOR/FINISH:
- ZINC
- TYPE:
- PULLEY
- RIDING STYLE:
- STREET
$20.75
