Dirt Bike Drivetrain
Dirt Bike Drivetrain Parts at JJ Motorsports
Enhance your dirt bike’s power transfer with premium drivetrain parts from JJ Motorsports. Find heavy-duty chains, front and rear sprockets, and clutch components designed to withstand intense riding demands. Combine these with other motocross gear and parts to maximize acceleration and ride efficiency on the track or trail.
Shop trusted brands like JT Chains for sealed chains and Renthal for ultralight sprockets. Explore related categories such as Dirt Bike Engine Parts for power upgrades or Dirt Bike Exhaust for complete tuning.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
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- Qty in Cart
- Quantity
- Price
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Rekluse RadiusX 4.0 Clutch Kit Honda CRF250R 2022-2025 RMS-8301101
REKLUSE
$979.00If you're running a CRF250R and want clutch engagement that matches your throttle input without lag or slipping, the Rekluse RadiusX 4.0 is the upgrade that delivers. Built with high-temperature materials and a redesigned wedge system, this clutch kit...11300704- SKU:
- 11300704
- Availability:
- Ships Same Business Day
- Weight:
- 2.93 LBS
$979.00 -
Rekluse RadiusX 4.0 Clutch Kawasaki KX450F 2016-2018 RMS-8304046
REKLUSE
$999.00The Rekluse RadiusX 4.0 Clutch delivers the engagement precision and heat tolerance that modern KX450F riders need for consistent performance across intense motos and technical terrain. Built with upgraded materials and proprietary friction pad...11300718- SKU:
- 11300718
- Availability:
- Ships Same Business Day
- Weight:
- 3.06 LBS
$999.00Qty in Cart: 0Quantity:Price:$999.00Subtotal: -
Rekluse RadiusX 4.0 Clutch Kit for Kawasaki KX250F 2009-2018 RMS-8306060
REKLUSE
$999.00The Rekluse RadiusX 4.0 clutch is engineered for KX250F riders who demand precise engagement, consistent power delivery, and reliability in high-temperature racing conditions. Modern 2-stroke and 4-stroke engines require a clutch system that responds...11300722- SKU:
- 11300722
- Availability:
- Ships Same Business Day
- Weight:
- 2.94 LBS
$999.00 -
REKLUSE RadiusX 4.0 Clutch - Yamaha RMS-8307002
REKLUSE
$949.00If you're running a Yamaha and demand clutch engagement that matches your riding precision, the REKLUSE RadiusX 4.0 delivers the direct power transfer and thermal durability that separates competitive performance from the rest. The redesigned EXP...11300729- SKU:
- 11300729
- Availability:
- Ships Same Business Day
- Weight:
- 2.67 LBS
$949.00Qty in Cart: 0Quantity:Price:$949.00Subtotal: -
Rekluse RadiusX 4.0 Clutch KTM 250 EXC 2006-2012 RMS-8313031
REKLUSE
$999.00The RadiusX 4.0 Clutch delivers the responsive engagement and thermal stability that serious KTM 250 EXC riders need for demanding trail and competition riding. Built with Rekluse's proven EXP 4.0 wedge technology, this clutch maintains consistent...11300744- SKU:
- 11300744
- Availability:
- Ships Same Business Day
- Weight:
- 3.08 LBS
$999.00Qty in Cart: 0Quantity:Price:$999.00Subtotal: -
Rekluse RadiusX 4.0 Clutch KTM 250 EXC 2017-2019 RMS-8313186
REKLUSE
$1,079.00If you're running a KTM 250 EXC and want clutch engagement that matches your bike's capabilities, the Rekluse RadiusX 4.0 delivers the precision and reliability you need. This clutch minimizes power loss during shifts while handling the extreme heat...11300758- SKU:
- 11300758
- Availability:
- Ships Same Business Day
- Weight:
- 2.99 LBS
$1,079.00 -
Rekluse RadiusCX 4.0 Clutch Honda CRF450R 2022-2024 RMS-8901002
REKLUSE
$1,499.00If you're running a CRF450R in competitive or high-demand trail riding, clutch feel and heat management directly impact your lap times and bike control. The Rekluse RadiusCX 4.0 delivers the responsiveness and durability you need to maintain consistent...11300762- SKU:
- 11300762
- Availability:
- Ships Same Business Day
- Weight:
- 5.63 LBS
$1,499.00 -
Rekluse RadiusCX 4.0 Clutch Kit Honda CRF450R 2021-2025 RMS-8901102
REKLUSE
$1,499.00If you're running your CRF450R hard on the track, clutch heat and engagement feel directly impact your lap times and control. The Rekluse RadiusCX 4.0 delivers a more connected lever response and consistent power delivery across extended high-temperature...11300763- SKU:
- 11300763
- Availability:
- Ships Same Business Day
- Weight:
- 5.66 LBS
$1,499.00Qty in Cart: 0Quantity:Price:$1,499.00Subtotal: -
Rekluse RadiusCX 4.0 Clutch Kit KTM 450 SX-F 2023-2024 RMS-8913086
REKLUSE
$1,549.00The Rekluse RadiusCX 4.0 delivers the precise engagement and durability that modern high-performance KTM engines demand. Whether you're pushing hard on the track or dialing in the perfect feel for your riding style, this clutch system provides responsive...11300815- SKU:
- 11300815
- Availability:
- Ships Same Business Day
- Weight:
- 4.66 LBS
$1,549.00 -
Rekluse RadiusCX 4.0 Clutch for 2024 KTM 250 EXC-F Six Days RMS-8913092
REKLUSE
$1,499.00The Rekluse RadiusCX 4.0 delivers the precise clutch engagement and heat management needed for aggressive off-road riding, whether you're competing in Six Days events or tackling technical terrain. Its redesigned EXP assembly and rolling contact wedges...11300818- SKU:
- 11300818
- Availability:
- Ships Same Business Day
- Weight:
- 4.76 LBS
$1,499.00Qty in Cart: 0Quantity:Price:$1,499.00Subtotal: -
On Sale
PROX Friction Plate Set - KX450F/X 16.S44043
PROX
MSRP: $122.95Now: $102.00Was: $122.95A worn or slipping clutch directly impacts your KX450F/X's power delivery and rideability—and friction plates are the critical wear component that determines engagement quality. This OEM-specification friction plate set restores smooth, predictable...11313922- SKU:
- 11313922
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
MSRP: $122.95Now: $102.00Was: $122.95 -
On Sale
PROX Friction Plate Set - Gas Gas/Husqvarna/KTM 16.S51018
PROX
MSRP: $88.95Now: $68.00Was: $88.95A worn or glazed clutch friction plate set will rob your bike of power delivery and responsiveness—especially critical in high-demand riding conditions. This PROX friction plate set is manufactured to exact OEM specifications, ensuring smooth engagement,...11313923- SKU:
- 11313923
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
MSRP: $88.95Now: $68.00Was: $88.95 -
SUPERSPROX Countershaft Sprocket - 12 Tooth CST-1901-12-1
SUPERSPROX
$24.95If you're running a countershaft sprocket that's wearing down or losing power to friction, you're leaving performance on the table. The SUPERSPROX 12-tooth countershaft sprocket delivers the durability and efficiency of factory racing parts without the...12122286- SKU:
- 12122286
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
$24.95 -
MOOSE RACING Front Sprocket - 13 Tooth - Honda 26-1162-13CRMO
MOOSE RACING
$21.95A worn or damaged front sprocket directly impacts your power delivery and acceleration—especially critical in dirt, ADV, and ATV riding where precise drivetrain response matters. The MOOSE RACING 13-tooth front sprocket combines chromoly steel...12122086- SKU:
- 12122086
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$21.95 -
MOOSE RACING Front Sprocket - 14 Tooth - Honda 26-1162-14CRMO
MOOSE RACING
$22.95A worn or damaged front sprocket directly impacts power delivery, throttle response, and chain wear across your entire drivetrain. The MOOSE RACING 14-tooth front sprocket restores OEM-spec engagement while eliminating play that compounds over time...12122087- SKU:
- 12122087
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
MOOSE RACING Front Sprocket - 13 Tooth - Honda 26-1199-13CRMO
MOOSE RACING
$20.95A worn or undersized front sprocket directly impacts your power delivery, throttle response, and overall drivetrain efficiency. The MOOSE RACING 13-tooth front sprocket delivers precision engineering and proven durability for serious riders who demand...12122113- SKU:
- 12122113
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
MOOSE RACING Front Sprocket - 15 Tooth - Honda 26-11A1-15CRMO
MOOSE RACING
$22.95A worn or undersized front sprocket directly impacts acceleration response and overall drivetrain efficiency—especially critical in racing and technical terrain where precise power delivery matters. This MOOSE RACING 15-tooth front sprocket is engineered...12122118- SKU:
- 12122118
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
$22.95 -
MOOSE RACING Front Sprocket - 14 Tooth - Kawasaki 26-2114-14CRMO
MOOSE RACING
$16.95A worn or damaged front sprocket robs you of power delivery and creates dangerous drivetrain slack—especially critical in competitive riding or demanding terrain. This MOOSE Racing 14-tooth sprocket restores precision engagement and durability through...12122127- SKU:
- 12122127
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
$16.95 -
MOOSE RACING Front Sprocket - 12 Tooth - KLX 140 26-2120-12CRMO
MOOSE RACING
$16.95A worn or undersized front sprocket kills acceleration and limits your bike's power transfer to the ground. The MOOSE RACING 12-tooth front sprocket is engineered with chromoly steel and precision machining to handle the brutal forces of dirt riding...12122136- SKU:
- 12122136
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$16.95Qty in Cart: 0Quantity:Price:$16.95Subtotal: -
MOOSE RACING Front Sprocket - 13 Tooth - Kawasaki/Yamaha 26-4108-13CRMO
MOOSE RACING
$18.95A worn or undersized front sprocket kills your acceleration and forces your engine to work harder than it should. This MOOSE RACING 13-tooth sprocket restores crisp throttle response and optimized gear ratios by maintaining precision tolerances that OEM...12122179- SKU:
- 12122179
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$18.95Qty in Cart: 0Quantity:Price:$18.95Subtotal:
