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 Low Rear Belt Guard - XL 14+ G32-0320NU
DRAG SPECIALTIES
$109.09A rear belt guard isn't just a cosmetic addition—it's essential protection against debris, clothing, and accidental contact with your drivetrain during high-speed operation or close-quarters work...12020123- SKU:
- 12020123
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- LOWER
- TYPE:
- REAR BELT
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
$109.09 -
DRAG SPECIALTIES Transmission Pulley - 32-Tooth D26-0142-32
DRAG SPECIALTIES
$110.16Drag Specialties' 32-tooth transmission pulley is engineered for precise belt drive tuning on high-performance applications where gear ratio optimization directly impacts acceleration and top-end...12030016- SKU:
- 12030016
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 32
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
$110.16 -
DRAG SPECIALTIES Transmission Pulley - 28-Tooth D26-0139-28
DRAG SPECIALTIES
$88.76Precision belt drive geometry is critical for consistent power transfer in high-RPM applications. The DRAG SPECIALTIES 28-tooth transmission pulley delivers exact timing control and reduces belt slip...12030017- SKU:
- 12030017
- Availability:
- Ships Same Business Day
- Weight:
- 3.65 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- PULLEY
- TYPE:
- TRANSMISSION
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 28
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
$88.76 -
DRAG SPECIALTIES Transmission Pulley - 29-Tooth D26-0139-29
DRAG SPECIALTIES
$95.18A precision transmission pulley is essential for maintaining accurate belt drive ratios and ensuring reliable power transfer in high-performance applications. The DRAG SPECIALTIES 29-tooth design...12030018- SKU:
- 12030018
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- PRODUCT NAME:
- PULLEY
- TYPE:
- TRANSMISSION
- TOOTH COUNT:
- 29
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$95.18 -
DRAG SPECIALTIES Transmission Pulley - 30-Tooth D26-0139-30
DRAG SPECIALTIES
$114.44A properly sized transmission pulley is critical for maintaining belt tension and ensuring reliable power delivery in your drivetrain. The DRAG SPECIALTIES 30-tooth design offers the precision...12030019- SKU:
- 12030019
- Availability:
- Ships Same Business Day
- Weight:
- 4.05 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 30
- TYPE:
- TRANSMISSION
$114.44Qty in Cart: 0Quantity:Price:$114.44Subtotal: -
DRAG SPECIALTIES Transmission Pulley - 29-Tooth D26-0140-29
DRAG SPECIALTIES
$115.51A transmission pulley swap is one of the most effective ways to dial in your belt-drive system's efficiency and reliability. The Drag Specialties 29-tooth design delivers precise engagement with your...12030020- SKU:
- 12030020
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TYPE:
- TRANSMISSION
- COLOR/FINISH:
- BLACK
- TOOTH COUNT:
- 29
$115.51 -
DRAG SPECIALTIES Clutch Kit D17-0141
DRAG SPECIALTIES
$62.49A clutch kit is critical for any drag racing setup where consistent power delivery and reliable engagement under extreme conditions are non-negotiable. The DRAG SPECIALTIES Clutch Kit D17-0141...11321580- SKU:
- 11321580
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$62.49 -
Rekluse TorqDrive Clutch Kit for 2003-2020 Harley-Davidson Sportster XL Models RMS-2815006
REKLUSE
$449.00The stock clutch on your Sportster hits its limits once you push toward serious horsepower—slipping engagement, heavy lever feel, and premature wear become real problems. The Rekluse TorqDrive Clutch...11300434- SKU:
- 11300434
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- COLOR/FINISH:
- ALUMINUM
- UNITS:
- KIT
- MATERIAL:
- STEEL
- MODEL:
- TORQDRIVE®
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- STREET
$449.00 -
Rekluse Core Manual TorqDrive Clutch Kit for Harley-Davidson Sportster 1200 Custom 2003-2020 RMS-7115006
REKLUSE
$979.00If you're running higher power outputs on your Sportster 1200 Custom, the stock clutch becomes a liability—slipping under load and wearing prematurely. The Rekluse Core Manual TorqDrive clutch solves...11300435- SKU:
- 11300435
- Availability:
- Ships Same Business Day
- Weight:
- 4.80 LBS
- UNITS:
- KIT
- MODEL:
- CORE MANUAL TORQ-DRIVE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH KIT
$979.00Qty in Cart: 0Quantity:Price:$979.00Subtotal: -
Rekluse Derby Cover Gloss Black 2004-2019 Harley-Davidson Sportster XL1200 RMS-0515001
REKLUSE
$249.00The stock derby cover on your Sportster XL1200 is functional—but the Rekluse billet aluminum replacement elevates both protection and aesthetics. This CNC-machined cover shields your primary...11070617- SKU:
- 11070617
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
$249.00 -
Rekluse Derby Cover for 2004-2021 Harley-Davidson Sportster XL1200X RMS-0515002
REKLUSE
$249.00A derby cover does more than dress up your primary—it protects your clutch components from road debris, moisture, and UV exposure while maintaining the clean, purposeful aesthetic your Sportster...11070618- SKU:
- 11070618
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- WRINKLE BLACK
$249.00 -
Rekluse Derby Cover Black Gloss Harley-Davidson Dyna Low Rider 1999-2005 RMS-0515003
REKLUSE
$249.00Your Dyna Low Rider's clutch assembly deserves protection that matches its performance demands. The Rekluse Derby Cover RMS-0515003 shields your clutch while delivering a refined, finished appearance...11070619- SKU:
- 11070619
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GLOSS
$249.00 -
Rekluse Derby Cover 2018-2019 Harley-Davidson Softail Slim FLSL RMS-0515004
REKLUSE
$249.00Your Softail's primary drivetrain cover takes constant abuse from heat, debris, and oxidation—a quality derby cover protects that investment while maintaining a clean, finished appearance. The...11070620- SKU:
- 11070620
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- WRINKLE BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
$249.00 -
Rekluse Derby Clutch Cover Gloss Black 2016-2023 Harley-Davidson FLHR Road King RMS-0515005
REKLUSE
$249.00Your Road King's clutch cover is one of the first visual focal points of your drivetrain—and factory covers rarely deliver the aesthetic impact a machine of this caliber deserves. The Rekluse Derby...11070621- SKU:
- 11070621
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COLOR/FINISH:
- GLOSS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$249.00 -
REKLUSE Derby Cover RMS-0515006
REKLUSE
$249.00A clutch cover takes constant abuse from heat, debris, and contact—factory plastic covers crack and warp under track conditions. The Rekluse Derby Cover RMS-0515006 replaces that weakness with billet...11070622- SKU:
- 11070622
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COLOR/FINISH:
- WRINKLE BLACK
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$249.00 -
Rekluse Derby Cover Wrinkle Black Indian Scout 2015-2022 RMS-0516002
REKLUSE
$179.00Your Indian Scout's clutch cover takes a beating from heat, debris, and daily wear. The Rekluse Derby Cover replaces that worn-out plastic or damaged OEM piece with a precision-engineered billet...11070624- SKU:
- 11070624
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- COVER
- TYPE:
- DERBY COVER
- COLOR/FINISH:
- WRINKLE BLACK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$179.00 -
Rekluse TorqDrive Clutch Kit 2004-2006 Harley-Davidson Sportster RMS-2815006
REKLUSE
$579.00If you're running a high-horsepower Sportster, your stock clutch is working overtime—and it shows. The Rekluse TorqDrive delivers up to 50% stronger engagement without requiring you to grip harder,...11300304- SKU:
- 11300304
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- COLOR/FINISH:
- ALUMINUM
- MODEL:
- TORQDRIVE®
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
$579.00 -
Rekluse TorqDrive Clutch Kit for Indian Scout 2015-2023 RMS-2816031
REKLUSE
$599.00If you're running an Indian Scout and pushing serious power, your stock clutch won't cut it—harsh engagement, slipping under load, and basket wear are all signs you need more capacity. The Rekluse...11300305- SKU:
- 11300305
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- MODEL:
- TORQDRIVE®
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$599.00 -
Rekluse TorqDrive Clutch Kit 1998-2017 Harley-Davidson Big Twin RMS-284
REKLUSE
$599.00If you're running increased horsepower on your Big Twin, your stock clutch is working overtime—and stock friction material simply can't handle sustained high-load riding or aggressive shifting...11300306- SKU:
- 11300306
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- MATERIAL:
- STEEL
- MODEL:
- TORQDRIVE®
- PRODUCT NAME:
- CLUTCH KIT
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$599.00 -
Rekluse TorqDrive Clutch Kit for Harley-Davidson Softail 2018-2023 RMS-285
REKLUSE
$599.00If you're running a modern Softail with serious power, your factory clutch is leaving you short. The Rekluse TorqDrive RMS-285 delivers up to 50% stronger engagement while keeping lever effort...11300307- SKU:
- 11300307
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ALUMINUM
- MODEL:
- TORQDRIVE®
- UNITS:
- KIT
$599.00
