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
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TRASK Power Plate Kit - High Pressure Plate Spring Kit - Black - M8/CVO TM-2012BK
TRASK
$149.95If you're running a high-output M8 and experiencing clutch slippage under hard acceleration, you need a solution that actually works—not just marketing promises. The TRASK Power Plate Kit increases...11313941- SKU:
- 11313941
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
$149.95 -
TRASK Power Plate Kit - High Pressure Plate Spring Kit - Blue - M8/CVO TM-2012BL
TRASK
$149.95If you're running a high-output M8 engine and experiencing clutch slippage under hard acceleration, the TRASK Power Plate Kit delivers a straightforward solution: 50% increased holding pressure with...11313942- SKU:
- 11313942
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$149.95 -
TRASK Power Plate Kit - High Pressure Plate Spring Kit - Red - M8/CVO TM-2012RD
TRASK
$149.95If you're running a high-output M8 engine and experiencing clutch slippage under load, the TRASK Power Plate Kit delivers the holding pressure you need without a full clutch replacement. This...11313943- SKU:
- 11313943
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
$149.95 -
TRASK Power Plate Kit - High Pressure Plate Spring Kit - Raw - M8/CVO TM-2012R
TRASK
$149.95If you're running a high-output M8 engine, your stock clutch plate won't cut it. The TRASK Power Plate Kit delivers a 50% increase in clutch holding pressure, eliminating slippage and allowing you to...11313944- SKU:
- 11313944
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
$149.95 -
BAKER DRIVETRAIN Armored Attitude Chain Adjuster - Replacement Shoe 176-67A
BAKER DRIVETRAIN
$59.00Chain slap and wear aren't just noise—they're performance killers that compromise drivetrain reliability and power delivery. This BAKER DRIVETRAIN replacement shoe keeps your chain adjuster operating...11200452- SKU:
- 11200452
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$59.00 -
BARNETT Derby Cover - Clear Black - M8 Softail 343-30-44018
BARNETT
$246.48A quality derby cover does more than protect your primary cover—it's a window into your bike's mechanical heart and a cornerstone of your aesthetic. The Barnett Clear Black Derby Cover combines...11070731- SKU:
- 11070731
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$246.48 -
BARNETT Derby Cover - Clear Chrome - M8 Softail 343-30-43018
BARNETT
$302.10A quality derby cover does more than protect your primary—it's the first impression of your build. The Barnett clear chrome derby cover combines precision CNC-machined construction with a...11070732- SKU:
- 11070732
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$302.10 -
BARNETT Extra Plate Clutch Kit - Kevlar - M8 304-30-10020
BARNETT
$315.50Stock clutch packs compromise power delivery under sustained load—especially on forced induction or high-horsepower builds. The BARNETT Extra Plate Kevlar Clutch Kit addresses this directly by adding...11313945- SKU:
- 11313945
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
$315.50Qty in Cart: 0Quantity:Price:$315.50Subtotal: -
Rekluse APEX Clutch for 2017-2024 Harley-Davidson M8 Models RMS-7115005
REKLUSE
$1,379.00If you're running an M8 with serious power, your stock clutch is costing you performance and comfort. The Rekluse APEX delivers a 60% increase in torque capacity while cutting lever pull effort in...11321971- SKU:
- 11321971
- Availability:
- Ships Same Business Day
- Weight:
- 7.47 LBS
$1,379.00 -
Rekluse APEX Clutch for 2007-2010 Harley-Davidson Twin Cam models RMS-7115001
REKLUSE
$1,379.00If you're running a modified Twin Cam and tired of fighting a heavy clutch lever or dealing with inconsistent engagement, the Rekluse APEX Clutch solves both problems while handling significant power...11321972- SKU:
- 11321972
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
$1,379.00 -
Rekluse APEX Clutch & Basket for 2018-2024 Harley-Davidson Softail Breakout FXBR RMS-6915105
REKLUSE
$1,649.00If you're running an M8 Softail Breakout, the factory clutch reaches its limits once you start pushing real power through the drivetrain. The Rekluse APEX delivers a 60% increase in torque capacity...11321973- SKU:
- 11321973
- Availability:
- Ships Same Business Day
- Weight:
- 9.10 LBS
$1,649.00 -
Rekluse APEX Clutch & Basket for Harley Twin Cam 2011-2017 RMS-6915104
REKLUSE
$1,649.00If you're running a Twin Cam Harley and want genuine improvements in clutch feel and torque capacity without fighting a heavy lever or dealing with heat issues, the Rekluse APEX is built to deliver...11321974- SKU:
- 11321974
- Availability:
- Ships Same Business Day
- Weight:
- 9.29 LBS
$1,649.00 -
Rekluse APEX Clutch & Basket for 2007-2010 Harley-Davidson Twin Cam Models RMS-6915101
REKLUSE
$1,649.00If you're running a modified Twin Cam Harley with serious power, your stock clutch is likely holding you back. The Rekluse APEX delivers a 60% increase in torque capacity while cutting lever effort...11321975- SKU:
- 11321975
- Availability:
- Ships Same Business Day
- Weight:
- 9.22 LBS
$1,649.00 -
JOKER MACHINE Derby Cover - 5 Hole - Finned - Black - M8 Softail 06-965-1
JOKER MACHINE
$168.95A quality derby cover protects your primary cover while eliminating visual clutter with a minimalist aesthetic. Joker Machine's finned design delivers classic racing style without sacrificing...11070735- SKU:
- 11070735
- Availability:
- Ships Same Business Day
- Weight:
- 1.09 LBS
$168.95 -
JOKER MACHINE Derby Cover - 5 Hole - Finned - Black/Silver - M8 Softail 06-965-2
JOKER MACHINE
$153.95If you're running an M8 Softail, a quality derby cover does more than protect your primary—it sets the visual tone for your entire build. The JOKER MACHINE finned derby cover delivers that...11070736- SKU:
- 11070736
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$153.95 -
JOKER MACHINE Derby Cover - 5 Hole - Finned - Chrome - M8 Softail 06-965-3
JOKER MACHINE
$184.95A quality derby cover protects your primary case while delivering the stripped-down aesthetic that defines modern custom Harley styling. Joker Machine's finned design cuts weight without sacrificing...11070737- SKU:
- 11070737
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$184.95 -
JOKER MACHINE Derby Cover - 5 Hole - Smooth - Black - M8 Softail 06-966-1
JOKER MACHINE
$153.95A quality derby cover protects your primary case while defining your bike's aesthetic—and this Joker Machine piece delivers both without the bulk. The smooth, minimalist design strips away...11070738- SKU:
- 11070738
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$153.95 -
JOKER MACHINE Derby Cover - 5 Hole - Smooth - Chrome - M8 Softail 06-966-3
JOKER MACHINE
$184.95A clean, minimalist derby cover transforms your M8 Softail's top end into a refined focal point while reducing unnecessary weight. The Joker Machine design strips away excess material for that...11070739- SKU:
- 11070739
- Availability:
- Ships Same Business Day
- Weight:
- 1.22 LBS
$184.95Qty in Cart: 0Quantity:Price:$184.95Subtotal: -
S&S CYCLE Heavy Duty Compensator Ramp - Gray - M8 560-0360
S&S CYCLE
$349.95A worn or compromised compensator ramp directly impacts engine reliability and clutch performance on your M8—especially under load or aggressive riding conditions. This S&S Cycle heavy-duty...11200459- SKU:
- 11200459
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$349.95Qty in Cart: 0Quantity:Price:$349.95Subtotal: -
MUELLER MOTORCYCLE AG Hydro Clutch Repair Kit - Twin Cam S0002210
MUELLER MOTORCYCLE AG
$28.95A hydraulic clutch system demands precision maintenance to maintain consistent engagement and reliable power transfer. This Mueller Motorcycle AG repair kit provides OEM-quality components...11321977- SKU:
- 11321977
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$28.95
