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
-
TRASK Replacement Rear Sprocket - 54 Tooth TM-2901-3
TRASK
$178.95Heat-treated for added durability, Black anodized finished, Made in the U.S.A.12102493- SKU:
- 12102493
- Availability:
- Ships Same Business Day
- Weight:
- 3.65 LBS
- TOOTH COUNT:
- 54
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TYPE:
- CONVERSION
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
$178.95 -
TRASK Replacement Rear Sprocket - 51 Tooth TM-2901-5
TRASK
$178.95Heat-treated for added durability, Black anodized finished, Made in the U.S.A.12102494- SKU:
- 12102494
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- COLOR/FINISH:
- ANODIZED
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- TYPE:
- CONVERSION
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
$178.95 -
TRASK COVER DERBY ASLT CHROME TM-0042CH
TRASK
$279.95TRASK COVER DERBY ASLT CHROME11070684- SKU:
- 11070684
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$279.95 -
TRASK COVER DERBY ASLT GLS BLK TM-0042BK
TRASK
$279.95TRASK COVER DERBY ASLT GLS BLK11070685- SKU:
- 11070685
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
$279.95 -
TRASK Assault Derby Cover - Gloss Black TM-0041BK
TRASK
$279.95Billet machined T6061 aluminum with acrylic see-through window, Matches Assault series air cleaners and cam covers, Made in the U.S.A., Acrylic see-through window11070637- SKU:
- 11070637
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- MODEL:
- ASSAULT
- RIDING STYLE:
- STREET
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- COLOR/FINISH:
- GLOSS BLACK
$279.95 -
TRASK Twin Cam Clutch Basket TM-2013
TRASK
$469.95Strongly recommended for engines producing 100 horsepower or more, Easily handles engine builds in excess of 300 horsepower, Includes mounting bolts and lock tabs, Direct bolt-on replacement for the stock clutch basket, Hard-anodized finish for added...11321005- SKU:
- 11321005
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- CLUTCH BASKET
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
$469.95 -
TRASK M8 Clutch Basket TM-2017
TRASK
$469.95Strongly recommended for engines producing 100 horsepower or more, Easily handles engine builds in excess of 300 horsepower, Includes mounting bolts and lock tabs, Direct bolt-on replacement for the stock clutch basket, Hard-anodized finish for added...11321220- SKU:
- 11321220
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- COLOR/FINISH:
- GOLD
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- CLUTCH BASKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
$469.95 -
TRASK 530 Chain Drive Conversion Kit - 54-Tooth TM-2901
TRASK
$699.95Designed to upgrade the stock belt drive to chain drive, The custom steel 54-tooth rear sprocket and Trask custom billet aluminum carrier are easy to install, Heat treated and coated for long lasting wear, Comes with high quality bearings and spacers,...12101851- SKU:
- 12101851
- Availability:
- Ships Same Business Day
- Weight:
- 9.50 LBS
- TOOTH COUNT:
- 25
- TOOTH COUNT:
- 54
- TYPE:
- DRIVE
- MATERIAL:
- 6061-T6 ALUMINUM
- PRODUCT NAME:
- CONVERSION KIT
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$699.95 -
POWERSTANDS RACING Primary Chain Tensioner 12-02000-22
POWERSTANDS RACING
$222.95Helps with over tightening; easy to adjust, Heavy-duty manual tensioner, Precision machined from billet aluminum, Mounts with OEM hardware11200408- SKU:
- 11200408
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- CHAIN TENSIONER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$222.95 -
POWERSTANDS RACING Primary Chain Tensioner 12-02002-22
POWERSTANDS RACING
$222.95POWERSTANDS RACING Primary Chain Tensioner11200424- SKU:
- 11200424
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- CHAIN TENSIONER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$222.95 -
PANTHER Rear Drive Belt - 132-Tooth - 1 1/2" 62-0938
PANTHER
$273.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197001- SKU:
- DS197001
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 132
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
$273.95 -
PANTHER Rear Drive Belt - 136-Tooth - 1 1/2" 62-0964
PANTHER
$282.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197002- SKU:
- DS197002
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 136
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$282.95 -
PANTHER Rear Drive Belt - 126-Tooth - 1 1/2" 62-0940
PANTHER
$265.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197003- SKU:
- DS197003
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 126
$265.95 -
PANTHER Rear Drive Belt - 130-Tooth - 1 1/2" 62-0941
PANTHER
$270.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197004- SKU:
- DS197004
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- PRODUCT NAME:
- BELT
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 130
- WIDTH IMPERIAL:
- 1-1/2'
$270.95 -
PANTHER Rear Drive Belt - 133-Tooth - 1 1/2" 62-0942
PANTHER
$256.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197005- SKU:
- DS197005
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- RIDING STYLE:
- STREET
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- TOOTH COUNT:
- 133
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
$256.95Qty in Cart: 0Quantity:Price:$256.95Subtotal: -
PANTHER Rear Drive Belt - 128-Tooth - 1 1/2" 62-0943
PANTHER
$253.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197006- SKU:
- DS197006
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 128
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1-1/2'
$253.95 -
PANTHER Rear Drive Belt - 125-Tooth - 1 1/8" 62-0944
PANTHER
$227.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197007- SKU:
- DS197007
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
- TOOTH COUNT:
- 125
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$227.95Qty in Cart: 0Quantity:Price:$227.95Subtotal: -
PANTHER Rear Drive Belt - 150-Tooth - 1 3/8" 62-1232
PANTHER
$281.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...23020001- SKU:
- 23020001
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 150
- WIDTH IMPERIAL:
- 1-3/8'
- RIDING STYLE:
- STREET
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
$281.95 -
PANTHER Rear Drive Belt - 128-Tooth - 1 1/8" 62-0945
PANTHER
$236.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...DS197008- SKU:
- DS197008
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 128
- WIDTH IMPERIAL:
- 1-1/8'
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$236.95 -
PANTHER Rear Drive Belt - 135-Tooth - 1 1/8" 62-1172
PANTHER
$216.95Improved RPP™ Panther® Design, Feature ULTRA-CORD™ tensile members and the Able™ compound, ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components, ULTRA-CORD resists degradation and moisture to give...MBR135- SKU:
- MBR135
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 135
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
$216.95Qty in Cart: 0Quantity:Price:$216.95Subtotal:
