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
-
DRAG SPECIALTIES Rear Sprocket - Gloss Black - Dished - 49-Tooth 16425EB
DRAG SPECIALTIES
$93.55Convert rear drive belt to 530 chain, 2.22" Center diameter12101849- SKU:
- 12101849
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- BORE SIZE IMPERIAL:
- 2.220'
- OFFSET IMPERIAL:
- 0.230'
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MOUNTING POSITION:
- REAR
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- TYPE:
- CONVERSION
- TYPE:
- DRIVE
- UNITS:
- EACH
$93.55 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 21 Tooth - XL 17506
DRAG SPECIALTIES
$38.43High-quality steel replacement sprocket, Heat treated for added durability12120729- SKU:
- 12120729
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 21
- CHAIN SIZE:
- 530
- TYPE:
- MAINSHAFT
$38.43 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth - XL 17508
DRAG SPECIALTIES
$38.43High-quality steel replacement sprocket, Heat treated for added durability12120731- SKU:
- 12120731
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 530
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 23
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
$38.43 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 21-Tooth - XL 71811
DRAG SPECIALTIES
$38.43High-quality steel replacement sprocket, Heat treated for added durability12120733- SKU:
- 12120733
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 530
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 21
- TYPE:
- MAINSHAFT
$38.43 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth - XL 72592
DRAG SPECIALTIES
$35.31High-quality steel replacement sprocket, Heat treated for added durability12120735- SKU:
- 12120735
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 23
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- COLOR/FINISH:
- RAW
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
$35.31 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth 71565
DRAG SPECIALTIES
$31.15High-quality OEM-style replacement sprockets, Heat-treated for added durability, For use with 530 chain12120740- SKU:
- 12120740
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- CHAIN SIZE:
- 530
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 23
- TYPE:
- MAINSHAFT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$31.15 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 22 Tooth 17501
DRAG SPECIALTIES
$33.23High-quality OEM-style replacement sprockets, Heat-treated for added durability, For use with 530 chain12120696- SKU:
- 12120696
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 22
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
$33.23 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth 70166
DRAG SPECIALTIES
$31.15High-quality OEM-style replacement sprockets, Heat-treated for added durability, For use with 530 chain12120701- SKU:
- 12120701
- Availability:
- Ships Same Business Day
- Weight:
- 1.39 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 23
$31.15Qty in Cart: 0Quantity:Price:$31.15Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 25 Tooth 70168
DRAG SPECIALTIES
$28.03High-quality OEM-style replacement sprockets, Heat-treated for added durability, For use with 530 chain12120703- SKU:
- 12120703
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 530
- TOOTH COUNT:
- 25
- TYPE:
- MAINSHAFT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$28.03 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth 70170
DRAG SPECIALTIES
$31.15High-quality OEM-style replacement sprockets, Heat-treated for added durability, For use with 530 chain12120705- SKU:
- 12120705
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 23
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$31.15 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 25 Tooth 73037
DRAG SPECIALTIES
$31.15High-quality OEM-style replacement sprockets, Heat-treated for added durability, For use with 530 chain12120707- SKU:
- 12120707
- Availability:
- Ships Same Business Day
- Weight:
- 1.63 LBS
- CHAIN SIZE:
- 530
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 25
- UNITS:
- EACH
$31.15 -
DRAG SPECIALTIES Transmission Mounting Plate 74728
DRAG SPECIALTIES
$38.06Chrome transmission mounting plate for 5-speedsDS243621- SKU:
- DS243621
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- MOUNTING PLATE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$38.06 -
DRAG SPECIALTIES Stroker Kicker Arm 73114
DRAG SPECIALTIES
$113.25Forged, chrome-plated arm is 101/4" long overall, and includes pinch bolt, Please note location of pinch bolt; this kicker arm will only work on kickstart shafts that feature a pinch bolt groove machined completely around the shaft.DS241013- SKU:
- DS241013
- Availability:
- Ships Same Business Day
- Weight:
- 2.28 LBS
- PRODUCT NAME:
- KICKER ARM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$113.25 -
DRAG SPECIALTIES Primary Chain Adjuster 71517
DRAG SPECIALTIES
$25.70Includes bracket shoe and retaining clip, Zinc plated, Replaces OEM adjusterDS192004- SKU:
- DS192004
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CHAIN ADJUSTER KIT
- TYPE:
- PRIMARY CHAIN
- UNITS:
- EACH
$25.70 -
DRAG SPECIALTIES Primary Chain - 428-2 x 76 C226T3/006
DRAG SPECIALTIES
$137.97Improved fatigue resistance, Pre-loaded to reduce initial elongation, Endless construction using high-quality raw materials for long life, Made in Italy11200282- SKU:
- 11200282
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- NUMBER OF LINKS:
- 76
- UNITS:
- EACH
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
$137.97 -
DRAG SPECIALTIES Primary Chain - #35-3 x 96 CA35-3S2N/1001
DRAG SPECIALTIES
$131.79Improved fatigue resistance, Pre-loaded to reduce initial elongation, Endless construction using high-quality raw materials for long life, Made in Italy11200287- SKU:
- 11200287
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- NUMBER OF LINKS:
- 96
$131.79 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0421
DRAG SPECIALTIES
$87.50Designed 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.11310421- SKU:
- 11310421
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
- UNITS:
- SET OF 6
- PRODUCT NAME:
- FRICTION PLATE
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$87.50 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0422
DRAG SPECIALTIES
$82.35Designed 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.11310422- SKU:
- 11310422
- Availability:
- Ships Same Business Day
- Weight:
- 1.72 LBS
- TYPE:
- CLUTCH
- UNITS:
- SET OF 5
- PRODUCT NAME:
- FRICTION PLATE
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
$82.35 -
DRAG SPECIALTIES Aramid Fiber Plates 1131-0423
DRAG SPECIALTIES
$65.87Designed 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.11310423- SKU:
- 11310423
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
- PRODUCT NAME:
- FRICTION PLATE
- MATERIAL:
- ARAMID FIBER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- SET OF 4
$65.87 -
DRAG SPECIALTIES Organic Plates 1131-0426
DRAG SPECIALTIES
$78.23Designed 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.11310426- SKU:
- 11310426
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- PRODUCT NAME:
- FRICTION PLATE
- STYLE:
- OEM REPLACEMENT
- TYPE:
- CLUTCH
- UNITS:
- SET OF 6
- MATERIAL:
- ORGANIC
- RIDING STYLE:
- STREET
$78.23
