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
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On Sale
Belt Drives Ltd 33T Transmission Pulley for 1985-2006 Harley Big Twin TP-33
BELT DRIVES LTD.
MSRP: $202.95Now: $182.66Was: $202.95Reducing parasitic drag on your drivetrain directly translates to measurable gains in acceleration and fuel efficiency. The Belt Drives Ltd TP-33 transmission pulley sheds approximately two-thirds of the weight found in stock units, allowing your engine...DS360168- SKU:
- DS360168
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- UNITS:
- EACH
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- TOOTH COUNT:
- 33
MSRP: $202.95Now: $182.66Was: $202.95 -
On Sale
Belt Drives Ltd Idler Bearing Kit for 11mm Belt Drive Clutches 1965-1984 Shovelhead Kick Start Models IBK-1
BELT DRIVES LTD.
MSRP: $77.95Now: $70.16Was: $77.95If you're running a BDL belt drive clutch system on your classic Shovelhead, worn idler bearings will rob you of power transfer efficiency and shorten your clutch's service life. The Belt Drives Ltd Idler Bearing Kit (IBK-1) restores smooth, low-friction...DS360170- SKU:
- DS360170
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- IDLER ASSEMBLY
- TYPE:
- IDLER ASSEMBLY
- UNITS:
- EACH
MSRP: $77.95Now: $70.16Was: $77.95 -
On Sale
Belt Drives Ltd 40mm Double Row Hub Bearing for 2006 Harley-Davidson FLSTF Fat Boy EHB-100
BELT DRIVES LTD.
MSRP: $69.95Now: $62.96Was: $69.95If you're running a Belt Drives Ltd belt drive clutch on your 2006 Fat Boy, the EHB-100 hub bearing is a critical wear item that directly impacts clutch engagement quality and drivetrain longevity. A worn or degraded bearing introduces play into the...DS360173- SKU:
- DS360173
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH HUB
- PRODUCT NAME:
- BEARING
MSRP: $69.95Now: $62.96Was: $69.95 -
On Sale
Belt Drives Ltd Kevlar Clutch Plate 1SDE for BDL Belt Drive Clutches ECP-100
BELT DRIVES LTD.
MSRP: $22.95Now: $20.66Was: $22.95If you're running a BDL Belt Drive clutch system, you need a clutch plate that can handle aggressive engagement cycles without glazing or slipping under load. The Belt Drives Ltd Kevlar Clutch Plate 1SDE delivers the friction coefficient and thermal...DS360174- SKU:
- DS360174
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- FRICTION PLATE MATERIAL:
- KEVLAR
- PRODUCT NAME:
- CLUTCH PLATE
- TYPE:
- ONE-SIDE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $22.95Now: $20.66Was: $22.95 -
On Sale
Belt Drives Ltd Kevlar Clutch Plate 2SDE Harley-Davidson 1990-2025 ECP-200
BELT DRIVES LTD.
MSRP: $22.95Now: $20.66Was: $22.95If you're running a BDL Belt Drive clutch system, the quality of your clutch plate directly impacts throttle response, power delivery, and longevity. The Belt Drives Ltd Kevlar Clutch Plate ECP-200 replaces the factory plate with a premium Kevlar...DS360175- SKU:
- DS360175
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- CLUTCH PLATE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- TWO-SIDE
- FRICTION PLATE MATERIAL:
- KEVLAR
MSRP: $22.95Now: $20.66Was: $22.95 -
On Sale
Belt Drives Ltd Splined Steel Drive Plate for BDL EVO and EVB Series Clutches EDP-200
BELT DRIVES LTD.
MSRP: $15.95Now: $14.36Was: $15.95The EDP-200 Splined Steel Drive Plate is critical for maintaining consistent power delivery and clutch longevity in BDL Belt Drive systems. A precision-splined design eliminates slip under load, ensuring your power reaches the wheels without compromise...DS360177- SKU:
- DS360177
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- BACKING PLATE
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- STEEL
MSRP: $15.95Now: $14.36Was: $15.95 -
On Sale
Belt Drives Ltd Top Fuel Street Drive Replacement Belt for Harley-Davidson FLSTF Fat Boy 1990-2006 BDL-14-85
BELT DRIVES LTD.
MSRP: $336.95Now: $303.26Was: $336.95Primary drive belts are critical wear items on any Harley-Davidson—inadequate power transfer and premature belt failure directly impact reliability and performance. The Belt Drives Ltd Top Fuel Street Drive Replacement Belt (BDL-14-85) is engineered to...DS360192- SKU:
- DS360192
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 85
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 3-3/8'
- STYLE:
- RIBBED
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
MSRP: $336.95Now: $303.26Was: $336.95Qty in Cart: 0Quantity:Price:MSRP: $336.95Now: $303.26Was: $336.95Subtotal: -
On Sale
Belt Drives Ltd Round Clutch Dogs for 3in Belt Drive Electric Start Kit 2001-2006 Harley-Davidson FLSTCI EVRD-1
BELT DRIVES LTD.
MSRP: $64.95Now: $58.46Was: $64.95If you're running a Belt Drives Ltd 3-inch belt drive system on your 2001-2006 Harley-Davidson FLSTCI, worn or damaged clutch dogs will compromise power transfer and accelerate wear across your entire drivetrain. The EVRD-1 Round Dogs deliver a precision...DS360400- SKU:
- DS360400
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- TYPE:
- CLUTCH
- UNITS:
- 12 PACK
- PRODUCT NAME:
- CLUTCH DOG
- RIDING STYLE:
- STREET
MSRP: $64.95Now: $58.46Was: $64.95 -
On Sale
Belt Drives Ltd Clutch Hub Tapered 1970-1983 Big Twin BDL-EV-190
BELT DRIVES LTD.
MSRP: $172.95Now: $155.66Was: $172.95If you're running a belt drive system on your Big Twin, clutch hub precision directly impacts power delivery and drivetrain longevity. The Belt Drives Ltd EV-190 delivers the exact tolerances required for smooth engagement and reliable performance,...DS360403- SKU:
- DS360403
- Availability:
- Ships Same Business Day
- Weight:
- 3.32 LBS
- PRODUCT NAME:
- CLUTCH HUB
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $172.95Now: $155.66Was: $172.95 -
On Sale
Belt Drives Ltd Clutch Hub Splined 1990-2013 Harley Davidson FLHR Road King EV-180
BELT DRIVES LTD.
MSRP: $172.95Now: $155.66Was: $172.95When you're running a Road King, clutch engagement consistency directly impacts both rideability and longevity. The Belt Drives Ltd Clutch Hub Splined (EV-180) delivers the precision fit and durability your drivetrain demands—engineered to handle...DS360404- SKU:
- DS360404
- Availability:
- Ships Same Business Day
- Weight:
- 1.42 LBS
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- CLUTCH HUB
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $172.95Now: $155.66Was: $172.95 -
On Sale
Belt Drives Ltd Clutch Hub Tapered 1965-1983 EV-160
BELT DRIVES LTD.
MSRP: $172.95Now: $155.66Was: $172.95The Belt Drives Ltd Clutch Hub Tapered EV-160 is engineered for vintage V-twin applications requiring precision engagement and reliable torque transfer. Its lightweight aluminum construction and hard anodized finish ensure consistent performance while...DS360406- SKU:
- DS360406
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- ANODIZED
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH HUB
MSRP: $172.95Now: $155.66Was: $172.95 -
On Sale
Belt Drives Ltd Clutch Pack for Harley-Davidson EV 1990-up ERCPS-100
BELT DRIVES LTD.
MSRP: $215.95Now: $194.36Was: $215.95Enhance the performance of your BDL Belt Drive clutches with the Clutch Pack EV/EVO/EVB ERCPS-100. Designed for durability and efficiency, this clutch pack ensures smooth engagement and optimal power transfer, making it an essential upgrade for any...11312455- SKU:
- 11312455
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FRICTION PLATE SET
- TYPE:
- CLUTCH
- UNITS:
- SET
MSRP: $215.95Now: $194.36Was: $215.95 -
On Sale
Belt Drives Ltd Competitor Clutch Friction Plates 1970-1984 Harley-Davidson Touring FXR CC-100-CP
BELT DRIVES LTD.
MSRP: $173.95Now: $156.56Was: $173.95Upgrade your clutch performance with the BELT DRIVES LTD. Friction Plate CC-100-CP, designed for durability and efficiency. Manufactured in the U.S.A., this friction plate ensures a reliable fit for optimal power transfer and smooth operation. ...11313028- SKU:
- 11313028
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- PRODUCT NAME:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- FRICTION PLATE MATERIAL:
- ALUMINUM
- UNITS:
- SET OF 5
MSRP: $173.95Now: $156.56Was: $173.95 -
On Sale
Belt Drives Ltd Rear Drive Belt 128 Tooth 1 1/8 inch for Harley-Davidson Softail 1993 PCCB-128-118
BELT DRIVES LTD.
MSRP: $251.95Now: $226.76Was: $251.95Experience unmatched performance with the Premium Rear Drive Belt, crafted with advanced Gates carbon X3N material. This innovative design ensures superior durability and flexibility, making it an ideal choice for high-performance motorcycles. Engineered...12040123- SKU:
- 12040123
- Availability:
- Ships Same Business Day
- Weight:
- 1.92 LBS
- MATERIAL:
- X7N CARBON
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 128
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $251.95Now: $226.76Was: $251.95 -
On Sale
Belt Drives Ltd Ball Bearing Lock-Up Clutch Kit 1990-2025 Harley-Davidson BPP-600-CK
BELT DRIVES LTD.
MSRP: $317.95Now: $286.16Was: $317.95Enhance the performance of your existing clutches with the Belt Drives Ltd. Plate Press L/U 90. This innovative upgrade transforms your clutch system into a ball-bearing lockup design, ensuring superior engagement without increasing lever pull effort...11300297- SKU:
- 11300297
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- PRODUCT NAME:
- PRESSURE PLATE
- TYPE:
- CLUTCH
- UNITS:
- KIT
- TYPE:
- LOCK-UP
- COLOR/FINISH:
- GRAY
- RIDING STYLE:
- STREET
MSRP: $317.95Now: $286.16Was: $317.95Qty in Cart: 0Quantity:Price:MSRP: $317.95Now: $286.16Was: $317.95Subtotal: -
On Sale
Belt Drives Ltd Kevlar Clutch Kit for 1970-1984 Harley Davidson FLH Electra Glide BTX-5
BELT DRIVES LTD.
MSRP: $199.95Now: $179.96Was: $199.95Enhance your vehicle's performance with the BTX-5 Clutch Kit, designed for superior engagement and durability. Featuring wider clutch plates for improved holding power, this kit ensures effortless installation with pre-set stack height. Proudly made in...11311801- SKU:
- 11311801
- Availability:
- Ships Same Business Day
- Weight:
- 4.87 LBS
- FRICTION PLATE MATERIAL:
- KEVLAR
- PRODUCT NAME:
- DRIVE PLATE (STEEL PLATE)
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- 6061 T-6 ALUMINUM
- TYPE:
- CLUTCH
- UNITS:
- 9 PIECE KIT
MSRP: $199.95Now: $179.96Was: $199.95 -
On Sale
Belt Drives Ltd Clutch Plates 1984-1989 Harley-Davidson Softail Standard FXST BTX-9
BELT DRIVES LTD.
MSRP: $209.95Now: $188.96Was: $209.95Upgrade your ride with our premium clutch plates designed specifically for '84-'89 Big Twin models. These plates are engineered to provide a larger clutch area, ensuring improved performance and durability. Easy to install with a pre-set stack height,...11311803- SKU:
- 11311803
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- KEVLAR
- PRODUCT NAME:
- CLUTCH KIT
- FRICTION PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- UNITS:
- SET OF 7
MSRP: $209.95Now: $188.96Was: $209.95 -
On Sale
Belt Drives Ltd Clutch Plates 1998-2017 Harley-Davidson Softail BTX-14
BELT DRIVES LTD.
MSRP: $257.95Now: $232.16Was: $257.95Upgrade your ride with our premium clutch plates designed specifically for Big Twin models from 1998 to 2017. These plates are engineered to provide exceptional grip and durability, enhancing your bike's performance while ensuring a seamless installation...11311805- SKU:
- 11311805
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- FRICTION PLATE MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH KIT
- FRICTION PLATE MATERIAL:
- KEVLAR
- UNITS:
- SET OF 8
MSRP: $257.95Now: $232.16Was: $257.95 -
On Sale
Belt Drives Ltd 1.5" 70 Tooth Mesh Pulley for Harley-Davidson Softail Springer 1995-1997 RPMS-70
BELT DRIVES LTD.
MSRP: $494.95Now: $445.46Was: $494.95Experience superior performance with the BELT DRIVES LTD. 1.50" Pulley Mesh 70 Tooth RPMS-70. Crafted from high-quality CNC billet aluminum, this pulley ensures durability and precision for your drive systems. Designed to meet RMA standards, it...DS325842- SKU:
- DS325842
- Availability:
- Ships Same Business Day
- Weight:
- 6.25 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 70
- MATERIAL:
- BILLET ALUMINUM
- COLOR/FINISH:
- CHROME
- MODEL:
- MESH
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $494.95Now: $445.46Was: $494.95 -
On Sale
Belt Drives Ltd 132 Tooth 1-3/4" Primary Belt for 1972-1984 Harley-Davidson FX Models BDL-132
BELT DRIVES LTD.
MSRP: $106.95Now: $96.26Was: $106.95Upgrade your BDL primary drive system with the BDL-132 Replacement Belt, engineered for optimal performance and durability. This high-quality belt ensures smooth operation and enhances the efficiency of your drive, making it an essential component for...DS360001- SKU:
- DS360001
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PRODUCT NAME:
- DRIVE BELT
- STYLE:
- RIBBED
- TOOTH COUNT:
- 132
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-3/4'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $106.95Now: $96.26Was: $106.95
