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
- Subtotal
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JT SPROCKETS Countershaft Sprocket - 16 Tooth - Suzuki JTF433.16
JT SPROCKETS
$12.78A worn or damaged countershaft sprocket directly impacts power delivery and throttle response in your Suzuki's transmission. This JT Sprockets 16-tooth replacement restores precise gear engagement and eliminates play that compromises acceleration and...12121989- SKU:
- 12121989
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$12.78 -
JT SPROCKETS Countershaft Sprocket - 15 Tooth - Suzuki JTF437.15
JT SPROCKETS
$15.40A worn or damaged countershaft sprocket directly impacts your power delivery and acceleration consistency. This JT Sprockets 15-tooth countershaft sprocket restores precise engagement with your primary chain, ensuring reliable shifting performance and...12121991- SKU:
- 12121991
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$15.40 -
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Gas Gas/Yamaha JTF564.14
JT SPROCKETS
$10.23A properly sized countershaft sprocket is critical to optimizing your dirt bike's power delivery and acceleration characteristics. This JT Sprockets 14-tooth unit delivers the precise gear ratio you need for responsive throttle control and peak...12122001- SKU:
- 12122001
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$10.23 -
JT SPROCKETS Countershaft Sprocket - 13 Tooth JTF575.13
JT SPROCKETS
$13.45A 13-tooth countershaft sprocket directly influences your acceleration curve and overall drivetrain efficiency. If you're chasing quicker throttle response and tighter gear ratios, this is a critical upgrade. JT's SCM420 chromoly construction guarantees...12122008- SKU:
- 12122008
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$13.45Qty in Cart: 0Quantity:Price:$13.45Subtotal: -
JT SPROCKETS Countershaft Sprocket - 13 Tooth - Ducati JTF736.13
JT SPROCKETS
$25.60A properly sized countershaft sprocket is critical for achieving your target power delivery and acceleration characteristics. This JT Sprockets 13-tooth unit maintains the precision tolerances necessary for smooth engagement with your primary drive,...12122009- SKU:
- 12122009
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$25.60 -
JT SPROCKETS Countershaft Sprocket - 12 Tooth - Husqvarna JTF823.12
JT SPROCKETS
$14.50A worn or damaged countershaft sprocket compromises your Husqvarna's power delivery and creates chain wear that cascades into expensive drivetrain repairs. This JT Sprockets 12-tooth replacement restores precise gear engagement and maximizes efficiency...12122011- SKU:
- 12122011
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$14.50 -
MOOSE RACING RS-16 E-Bike Drive Chain X01-D3201
MOOSE RACING
$11.95Keep your Moose Racing Agroid RS-16 E-Bike running at peak efficiency with an OEM replacement chain engineered for electric-assist performance. A worn or damaged chain compromises power transfer, increases drivetrain wear, and degrades your ride...12200454- SKU:
- 12200454
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
$11.95 -
MOOSE RACING Bling Pack - Orange - 85 SX M57-50270 O
MOOSE RACING
$104.95The MOOSE RACING Bling Pack delivers precision-engineered aesthetics and functional upgrades tailored specifically for your 85 SX. Each component is CNC-machined to exacting tolerances, ensuring a flawless fit without compromise. Whether you're hitting...12311540- SKU:
- 12311540
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$104.95 -
MOOSE RACING Bling Pack - Red - MC 85 M57-50270 R
MOOSE RACING
$104.95The MOOSE RACING Bling Pack elevates your MC 85's aesthetic while maintaining the precision engineering your bike demands. Each component is CNC-machined to exacting tolerances, ensuring perfect fitment without compromise. Whether you're prepping for...12311541- SKU:
- 12311541
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$104.95 -
On Sale
MOOSE RACING Bling Pack - Blue - TC 85 M57-50270 L
MOOSE RACING
MSRP: $104.95Now: $67.00Was: $104.95The MOOSE RACING Bling Pack transforms your TC 85 M57 into a machine that turns heads in the pits while delivering measurable performance gains. Each component is precision CNC-machined to exacting tolerances, ensuring flawless fitment and reliability...12311542- SKU:
- 12311542
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
MSRP: $104.95Now: $67.00Was: $104.95 -
JT SPROCKETS Rear Sprocket - 46 Tooth - Yamaha JTR251.46
JT SPROCKETS
$29.78A properly sized rear sprocket is critical for optimizing your Yamaha's power delivery and acceleration characteristics. The JT Sprockets 46-tooth rear sprocket delivers the durability and precision engineering required for consistent performance,...12102408- SKU:
- 12102408
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
$29.78Qty in Cart: 0Quantity:Price:$29.78Subtotal: -
JT SPROCKETS Countershaft Sprocket - 14 Tooth JTF1443.14SC
JT SPROCKETS
$18.38A properly sized countershaft sprocket is critical to achieving optimal gear ratios and power delivery in your drivetrain. This 14-tooth JT sprocket is computer-designed to deliver maximum strength while keeping rotational mass to a minimum—essential for...12120944- SKU:
- 12120944
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$18.38Qty in Cart: 0Quantity:Price:$18.38Subtotal: -
MOOSE RACING Bling Pack - Red - Gas Gas M57-5019R
MOOSE RACING
$117.95The MOOSE Racing Bling Pack elevates your Gas Gas M57 with precision-engineered aesthetic and functional upgrades that catch attention on and off the track. Each component is CNC machined to OEM tolerances, ensuring seamless integration without...12311549- SKU:
- 12311549
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$117.95 -
On Sale
MOOSE RACING Bling Pack - Blue - Husqvarna M57-5019L
MOOSE RACING
MSRP: $117.95Now: $75.00Was: $117.95The MOOSE RACING Bling Pack transforms your Husqvarna's aesthetics while delivering the precision fit and durability demanded by serious riders. Each component is CNC-machined to exact tolerances, eliminating fitment guesswork and ensuring a seamless...12311550- SKU:
- 12311550
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
MSRP: $117.95Now: $75.00Was: $117.95 -
On Sale
MOOSE RACING Bling Pack - Blue - Husqvarna M57-5026L
MOOSE RACING
MSRP: $144.95Now: $93.00Was: $144.95The MOOSE Racing Bling Pack elevates your Husqvarna's aesthetics while maintaining the precision engineering your machine demands. Each component is CNC-machined to exacting tolerances, ensuring a flawless fit without compromises. Whether you're...12311551- SKU:
- 12311551
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
MSRP: $144.95Now: $93.00Was: $144.95 -
MOOSE RACING Bling Kit - Red - CRF450R/RX M57-1009R
MOOSE RACING
$137.95Transform your CRF450R/RX with the MOOSE RACING Bling Kit in striking red. This precision-engineered cosmetic upgrade combines factory-quality fitment with custom aesthetics, allowing you to personalize your machine without compromising on durability or...12311552- SKU:
- 12311552
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$137.95Qty in Cart: 0Quantity:Price:$137.95Subtotal: -
Rekluse Clutch Kit for Gas Gas EC 450F 2024 Husqvarna FE 450 2024 KTM 450 EXC-F 2024 RMS-7013198
REKLUSE
$719.00Stock clutches aren't built for serious riding—they fade under sustained load and leave you hunting for consistent feel lap after lap. The Rekluse Clutch Kit eliminates that guesswork with optimized friction materials and internal geometry that keeps...11300663- SKU:
- 11300663
- Availability:
- Ships Same Business Day
- Weight:
- 3.16 LBS
$719.00Qty in Cart: 0Quantity:Price:$719.00Subtotal: -
Rekluse Clutch Kit for KTM 450 SX-F 2024 RMS-7013281
REKLUSE
$629.00If you're running a KTM 450 SX-F, clutch fade under sustained throttle will cost you lap time and consistency. The Rekluse RMS-7013281 eliminates this problem with a purpose-built kit designed specifically for high-RPM demands, delivering crisp...11300664- SKU:
- 11300664
- Availability:
- Ships Same Business Day
- Weight:
- 2.28 LBS
$629.00 -
Rekluse Core Manual TorqDrive Clutch Kit for 2021-2023 Gas Gas MC 125 RMS-7113191
REKLUSE
$1,099.00Stock clutches in small-displacement 4-strokes operate at their limits the moment you add performance tuning—heat soak, fade, and inconsistent engagement become inevitable. The Rekluse Core Manual TorqDrive delivers the torque capacity and thermal...11300665- SKU:
- 11300665
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
$1,099.00Qty in Cart: 0Quantity:Price:$1,099.00Subtotal: -
On Sale
Sunstar 428 MXR1 Clip Connecting Link Gold SS428MXR1-L
SUNSTAR SPROCKETS
MSRP: $3.95Now: $3.00Was: $3.95A quality connecting link is non-negotiable for chain maintenance and reliability. The Sunstar 428 MXR1 Clip Link delivers a secure, repeatable connection that eliminates guesswork during chain service, while its corrosion-resistant gold finish...12250761- SKU:
- 12250761
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
MSRP: $3.95Now: $3.00Was: $3.95Qty in Cart: 0Quantity:Price:MSRP: $3.95Now: $3.00Was: $3.95Subtotal:
