Harley Drivetrain
JJ Motorsports is excited to offer our customers the best selection of harley bike drivetrain parts online. We carry a wide variety of parts to make sure that you can find the perfect match for your bike. From simple drivetrain mods to complete custom jobs, JJ Motorsports has the parts you need to make your ride the envy of the neighborhood. So whether you're looking for a new set of pulleys or a complete drivetrain upgrade, JJ Motorsports has you covered.
- Harley Clutch Components
- Harley Clutch Plates and Springs
- Harley Clutch Assemblies
- Harley Transmission Covers
- Harley Primary Drive Systems and Parts
- Harley Belts -Rear Drive
- Harley Chain
- Harley Chain Links and Parts
- Harley Front Sprockets
- Harley Kickstarters and Parts
- Harley Rear Chain-Belt Guards and Parts
- Harley Rear Drive Pulleys and Parts
- Harley Rear Sprockets
- Harley Torque Arms and Parts
- Harley Transmission Internal Components
- Harley Transmission Cases and Covers
- Harley Transmission Complete Gear Sets
- Harley Transmission Pulleys and Parts
- Harley Transmission Rebuild Kits
- Harley Transmission Shifter Components
- Harley Transmissions
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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THRASHIN SUPPLY CO. M8 - Derby Cover Finned - Chrome TSC-3017-3
THRASHIN SUPPLY CO.
$179.95THRASHIN SUPPLY CO. M8 Derby Cover Finned Chrome TSC-3017-3Made from machined 6061 billet aluminum, Uses stock gasket and hardware, Made in America11070695- SKU:
- 11070695
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MOUNTING STYLE:
- 5 HOLE
- PRODUCT NAME:
- DERBY COVER
- MATERIAL:
- 6061 BILLET ALUMINUM
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
- UNITS:
- EACH
$179.95 -
THRASHIN SUPPLY CO. M8 - Derby Cover Finned - Black TSC-3017-4
THRASHIN SUPPLY CO.
$179.95THRASHIN SUPPLY CO. M8 Derby Cover Finned Black TSC-3017-4Made from machined 6061 billet aluminum, Uses stock gasket and hardware, Made in America11070696- SKU:
- 11070696
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
- MATERIAL:
- 6061 BILLET ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 5 HOLE
$179.95 -
THRASHIN SUPPLY CO. Derby Cover - Polished - Classic TSC-3000-2
THRASHIN SUPPLY CO.
$119.95THRASHIN SUPPLY CO. Derby Cover Polished Classic TSC-3000-26061 billet aluminum construction, Includes gasket, Made in U.S.A.11070584- SKU:
- 11070584
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061 BILLET ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- STYLE:
- CLASSIC
- UNITS:
- EACH
- MOUNTING STYLE:
- 3 HOLE
$119.95 -
THRASHIN SUPPLY CO. Derby Cover - Black - Classic TSC-3000-4
THRASHIN SUPPLY CO.
$119.95THRASHIN SUPPLY CO. Derby Cover Black Classic TSC-3000-46061 billet aluminum construction, Includes gasket, Made in U.S.A.11070585- SKU:
- 11070585
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 3 HOLE
- RIDING STYLE:
- STREET
- MATERIAL:
- 6061 BILLET ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- STYLE:
- CLASSIC
$119.95 -
THRASHIN SUPPLY CO. Derby Cover - Polished - Classic TSC-3010-2
THRASHIN SUPPLY CO.
$129.95THRASHIN SUPPLY CO. Derby Cover Polished Classic TSC-3010-26061 billet aluminum construction, Includes gasket, Made in U.S.A.11070586- SKU:
- 11070586
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061 BILLET ALUMINUM
- STYLE:
- CLASSIC
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$129.95 -
THRASHIN SUPPLY CO. Derby Cover - Black - Classic TSC-3010-4
THRASHIN SUPPLY CO.
$129.95THRASHIN SUPPLY CO. Derby Cover Black Classic TSC-3010-46061 billet aluminum construction, Includes gasket, Made in U.S.A.11070587- SKU:
- 11070587
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- 6061 BILLET ALUMINUM
- STYLE:
- CLASSIC
$129.95 -
THRASHIN SUPPLY CO. Derby Cover - Polished - Dished TSC-3011-2
THRASHIN SUPPLY CO.
$139.95THRASHIN SUPPLY CO. Derby Cover Polished Dished TSC-3011-26061 billet aluminum construction, Includes gasket, Made in U.S.A.11070588- SKU:
- 11070588
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061 BILLET ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- MOUNTING STYLE:
- 5 HOLE
$139.95Qty in Cart: 0Quantity:Price:$139.95Subtotal: -
THRASHIN SUPPLY CO. Derby Cover - Black - Dished TSC-3011-4
THRASHIN SUPPLY CO.
$139.95THRASHIN SUPPLY CO. Derby Cover Black Dished TSC-3011-46061 billet aluminum construction, Includes gasket, Made in U.S.A.11070589- SKU:
- 11070589
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- MATERIAL:
- 6061 BILLET ALUMINUM
- UNITS:
- EACH
- PRODUCT NAME:
- DERBY COVER
$139.95 -
HAYDEN ENTERPRISES INC. M6 Chain Tensioner 77-90 XL M6-XL4
HAYDEN ENTERPRISES INC.
$117.95HAYDEN ENTERPRISES INC. M6 Chain Tensioner 77-90 XL M6-XL4Automatically adjust the tension of the primary chain, Provide constant and even tension, which improves gear shifting, Reduce shifting noise; make for a smoother ride, Extend primary chain life,...DS192007- SKU:
- DS192007
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN TENSIONER
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
HAYDEN ENTERPRISES INC. M6 Chain Tensioner 91-03 XL M6-XL5
HAYDEN ENTERPRISES INC.
$117.95HAYDEN ENTERPRISES INC. M6 Chain Tensioner 91-03 XL M6-XL5Automatically adjust the tension of the primary chain, Provide constant and even tension, which improves gear shifting, Reduce shifting noise; make for a smoother ride, Extend primary chain life,...DS192008- SKU:
- DS192008
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PRODUCT NAME:
- CHAIN TENSIONER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
HAYDEN ENTERPRISES INC. Replacement M6 Adjuster Shoe - '65-'06 Big Twin M6-SHOEBT65
HAYDEN ENTERPRISES INC.
$22.95HAYDEN ENTERPRISES INC. Replacement M6 Adjuster Shoe '65-'06 Big Twin M6-SHOEBT65Automatically adjust the tension of the primary chain, Provide constant and even tension, which improves gear shifting, Reduce shifting noise; make for a smoother ride,...DS192009- SKU:
- DS192009
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- ADJUSTING SHOE
- RIDING STYLE:
- STREET
- MATERIAL:
- NYLON
- TYPE:
- PRIMARY CHAIN
- UNITS:
- EACH
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
HAYDEN ENTERPRISES INC. Replacement M6 Adjuster Shoe - '77-'90 XL M6-SHOEXL4
HAYDEN ENTERPRISES INC.
$22.95HAYDEN ENTERPRISES INC. Replacement M6 Adjuster Shoe '77-'90 XL M6-SHOEXL4Automatically adjust the tension of the primary chain, Provide constant and even tension, which improves gear shifting, Reduce shifting noise; make for a smoother ride, Extend...DS192010- SKU:
- DS192010
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- ADJUSTING SHOE
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY CHAIN
- MATERIAL:
- NYLON
- UNITS:
- EACH
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
THRASHIN SUPPLY CO. Billet Derby Cover - Chrome TSC-3014-3
THRASHIN SUPPLY CO.
$129.95THRASHIN SUPPLY CO. Billet Derby Cover Chrome TSC-3014-36061 billet aluminum construction, Uses Stock Gasket and hardware, Includes gasket, Made in Los Angeles, CA, Made in the U.S.A., 2018 non-FLSB models require an equipped narrow profile primary cover...11070646- SKU:
- 11070646
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MATERIAL:
- 6061 BILLET ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- STYLE:
- CLASSIC
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MOUNTING STYLE:
- 5 HOLE
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
THRASHIN SUPPLY CO. M8 - Derby Cover OG - Chrome TSC-3015-3
THRASHIN SUPPLY CO.
MSRP: $169.95Now: $110.47Was: $169.95THRASHIN SUPPLY CO. M8 Derby Cover OG Chrome TSC-3015-3Made from machined 6061 billet aluminum, Uses stock gasket and hardware, Made in America11070691- SKU:
- 11070691
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061 BILLET ALUMINUM
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- MOUNTING STYLE:
- 5 HOLE
- PRODUCT NAME:
- DERBY COVER
- STYLE:
- OG
MSRP: $169.95Now: $110.47Was: $169.95 -
THRASHIN SUPPLY CO. M8 - Derby Cover OG - Black TSC-3015-4
THRASHIN SUPPLY CO.
$169.95THRASHIN SUPPLY CO. M8 Derby Cover OG Black TSC-3015-4Made from machined 6061 billet aluminum, Uses stock gasket and hardware, Made in America11070692- SKU:
- 11070692
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MATERIAL:
- 6061 BILLET ALUMINUM
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DERBY COVER
- STYLE:
- OG
- UNITS:
- EACH
$169.95Qty in Cart: 0Quantity:Price:$169.95Subtotal: -
THRASHIN SUPPLY CO. M8 - Derby Cover Dished - Chrome TSC-3016-3
THRASHIN SUPPLY CO.
$169.95THRASHIN SUPPLY CO. M8 Derby Cover Dished Chrome TSC-3016-3Made from machined 6061 billet aluminum, Uses stock gasket and hardware, Made in America11070693- SKU:
- 11070693
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MOUNTING STYLE:
- 5 HOLE
- MATERIAL:
- 6061 BILLET ALUMINUM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- UNITS:
- EACH
$169.95 -
THRASHIN SUPPLY CO. M8 - Derby Cover Dished - Black TSC-3016-4
THRASHIN SUPPLY CO.
$169.95THRASHIN SUPPLY CO. M8 Derby Cover Dished Black TSC-3016-4Made from machined 6061 billet aluminum, Uses stock gasket and hardware, Made in America11070694- SKU:
- 11070694
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- UNITS:
- EACH
- MATERIAL:
- 6061 BILLET ALUMINUM
$169.95 -
KURYAKYN Precision® Transmission Top Cover - Chrome 6415
KURYAKYN
MSRP: $81.99Now: $75.59Was: $83.99KURYAKYN Precision® Transmission Top Cover Chrome 6415Form-fitted to bolt directly onto the stock transmission cover for a sculpted appearance that proves the little details can make a big difference, One-piece design crafted from premium aluminum,...11050214- SKU:
- 11050214
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- TOP COVER
- TYPE:
- TRANSMISSION
MSRP: $81.99Now: $75.59Was: $83.99Qty in Cart: 0Quantity:Price:MSRP: $81.99Now: $75.59Was: $83.99Subtotal: -
KURYAKYN Precision® Transmission Shroud - Chrome 6456
KURYAKYN
MSRP: $116.99Now: $105.29Was: $116.99KURYAKYN Precision® Transmission Shroud Chrome 6456Cover the wrinkle black outer transmission on Milwaukee-Eight™powerplants, Single-piece, bolt-on design, Cast from quality aluminum and form-fitted to seamlessly cover the outer casing for a complete...11070611- SKU:
- 11070611
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SHROUD
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- TYPE:
- TRANSMISSION
MSRP: $116.99Now: $105.29Was: $116.99Qty in Cart: 0Quantity:Price:MSRP: $116.99Now: $105.29Was: $116.99Subtotal: -
CARL BROUHARD DESIGNS Derby Cover - Black - Spiro SS-DB01-B
CARL BROUHARD DESIGNS
$146.95High-quality covers that scream "custom", Constructed of 6061 T-6 aluminum, Easy installation, Made in the U.S.A.11070503- SKU:
- 11070503
- Weight:
- 16.00 LBS
$146.95Qty in Cart: 0Quantity:Price:$146.95Subtotal: