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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ACERBIS Chain Slider - Black - SX/TC/MC 65 2976180001
ACERBIS
$43.95Chain contact with your swingarm creates unnecessary wear, noise, and potential damage that compromises drivetrain efficiency. The ACERBIS Chain Slider is a direct-replacement guard that keeps your chain properly positioned and protected during...05203859- SKU:
- 05203859
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
$43.95 -
ACERBIS Chain Guide - Black - CRF300L 2975000001
ACERBIS
$76.95The ACERBIS Chain Guide for CRF300L protects your drivetrain from debris, mud, and chain slap while maintaining precise alignment during aggressive riding. A direct replacement design means straightforward installation without modification—get back to...05203856- SKU:
- 05203856
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
$76.95 -
ACERBIS Chain Guide - Red - CRF300L 2975000004
ACERBIS
$76.95A worn or damaged chain guide compromises both drivetrain efficiency and longevity, increasing wear on your sprockets and chain. The ACERBIS Chain Guide for CRF300L restores proper chain alignment and reduces lateral deflection, protecting your...05203857- SKU:
- 05203857
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$76.95 -
Rekluse TorqDrive Clutch Pack Yamaha YZ450F 2023-2024 RMS-2807176
REKLUSE
$409.00If you're running a 2023-2024 YZ450F in competition or high-demand trail conditions, stock clutch capacity becomes a limiting factor—especially when you're pushing hard through the powerband. The Rekluse TorqDrive upgrades your friction disk count to 10...11313879- SKU:
- 11313879
- Availability:
- Ships Same Business Day
- Weight:
- 2.46 LBS
$409.00 -
Hinson Racing Billetproof Inner Hub Yamaha YZ450F 2023-2025 H616-IH-2301
HINSON RACING
$339.99Your YZ450F's clutch system endures extreme heat and stress during aggressive riding—stock inner hubs wear quickly and compromise engagement consistency. The Hinson Billetproof Inner Hub eliminates these issues by dissipating heat more effectively and...11321850- SKU:
- 11321850
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$339.99 -
Hinson Racing Billetproof Pressure Plate Yamaha YZ450F 2023-2025 H616-PP-2301
HINSON RACING
$219.99Your YZ450F's clutch assembly needs a pressure plate that can withstand the thermal cycling and mechanical stress of competitive riding without compromising engagement feel or reliability. The Hinson Billetproof eliminates the flex and deflection that...11321851- SKU:
- 11321851
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$219.99 -
JT SPROCKETS Countershaft Sprocket - 16 Tooth - KLR 650 JTF511.16RB
JT SPROCKETS
$20.00A worn or damaged countershaft sprocket compromises power delivery and accelerates wear across your entire drivetrain. This JT Sprockets 16-tooth replacement restores precise engagement with your chain, ensuring smooth acceleration and reliable...12102757- SKU:
- 12102757
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$20.00 -
RK 428 MXZ1 - Connecting Link - Clip - Natural 428MXZ1-CL
RK
$4.66A worn or damaged connecting link compromises your chain's structural integrity and can lead to catastrophic failure at high RPM. The RK 428 MXZ1 Connecting Link provides a reliable replacement that restores your chain to factory specifications without...12250740- SKU:
- 12250740
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$4.66Qty in Cart: 0Quantity:Price:$4.66Subtotal: -
WORKS CONNECTION Elite Axle Block Kit - Blue - Gas Gas/Husqvarna/KTM 17-251
WORKS CONNECTION
$108.95Stock fixed axle designs limit your bike's ability to manage weight transfer and traction under acceleration. The WORKS CONNECTION Elite Axle Block Kit converts your suspension to a floating axle system, improving grip and handling while maintaining...12311666- SKU:
- 12311666
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
$108.95Qty in Cart: 0Quantity:Price:$108.95Subtotal: -
WORKS CONNECTION Elite Axle Block Kit - Red - Gas Gas/Husqvarna/KTM 17-256
WORKS CONNECTION
$108.95Factory axle blocks limit your dirt bike's traction potential and chain alignment precision. The WORKS CONNECTION Elite Axle Block Kit converts your fixed axle design to a floating system, dramatically improving rear-wheel grip and handling...12311667- SKU:
- 12311667
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$108.95 -
WORKS CONNECTION Elite Axle Block Kit - Black - Gas Gas/Husqvarna/KTM 17-261
WORKS CONNECTION
$108.95Stock axle blocks limit your bike's ability to transfer power efficiently through corners and technical terrain. The WORKS CONNECTION Elite Axle Block Kit converts your fixed axle design to a floating system, giving you measurably improved traction and...12311668- SKU:
- 12311668
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
$108.95 -
Renthal Ultralight Rear Sprocket 49T Aluminum for Suzuki 123U-520-49GPHA
RENTHAL
$103.95Unsprung weight directly impacts your bike's acceleration, handling, and responsiveness—the Renthal Ultralight Rear Sprocket eliminates 66% of the mass of a steel equivalent, translating to measurable gains in both trail performance and competitive lap...12112771- SKU:
- 12112771
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$103.95 -
Renthal 51 Tooth Aluminum Rear Sprocket for Suzuki 123U-520-51GPHA
RENTHAL
$103.95Shed unsprung weight without sacrificing durability. The Renthal 51-tooth aluminum rear sprocket reduces rotational mass by 66% compared to steel, translating to sharper throttle response, quicker acceleration, and improved handling dynamics—critical...12112773- SKU:
- 12112773
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
Renthal Rear Aluminum Sprocket 48T 520 Chain Yamaha 150U-520-48GBHA
RENTHAL
$103.95If you're running a 520 chain setup on your Yamaha dirt bike, your sprocket choice directly impacts acceleration response and overall drivetrain efficiency. The Renthal 48T aluminum sprocket cuts unsprung weight by two-thirds compared to steel...12112774- SKU:
- 12112774
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
Renthal Rear Sprocket 51 Tooth Aluminum for Yamaha 150U-520-51GBHA
RENTHAL
$103.95Reducing unsprung weight directly improves acceleration and handling—two critical factors that separate competitive setups from stock configurations. The Renthal 51-tooth rear sprocket cuts weight by 66% compared to steel while maintaining the strength...12112777- SKU:
- 12112777
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$103.95 -
Renthal Rear Sprocket 48 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-48GPHA
RENTHAL
$103.95Shave critical rotational mass without compromising durability or power delivery. The Renthal 48-tooth rear sprocket cuts 66% of the weight compared to steel, translating to faster acceleration, quicker throttle response, and reduced strain on your...12112782- SKU:
- 12112782
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$103.95 -
Renthal Rear Sprocket 49 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-49GPHA
RENTHAL
$103.95Shaving unsprung weight off your drivetrain directly improves throttle response and handling—especially critical when you're pushing hard through technical terrain. The Renthal 49-tooth rear sprocket delivers that advantage through CNC-machined 7075 T6...12112783- SKU:
- 12112783
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
Renthal Rear Sprocket 50 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-50GPHA
RENTHAL
$103.95If you're running a 50-tooth rear sprocket, weight matters—every gram impacts acceleration and handling. The Renthal 7075 T6 aluminum chainwheel delivers a measurable 66% weight reduction over steel while maintaining the precision engineering needed for...12112784- SKU:
- 12112784
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
T.M. DESIGNWORKS Chain Guide - Black - YZ 450 F RCG-YZ4-BK
T.M. DESIGNWORKS
$102.95A quality chain guide is essential for protecting your drivetrain during aggressive riding and high-speed racing. The T.M. DESIGNWORKS guide uses a proprietary RMS (Return Memory System) plastic that self-centers after impacts, preventing chain...12311671- SKU:
- 12311671
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$102.95 -
T.M. DESIGNWORKS Chain Guide - Blue - YZ 450 F RCG-YZ4-BU
T.M. DESIGNWORKS
$102.95Chain slap and deflection cost you lap time and durability—especially on a demanding machine like the YZ 450 F. The T.M. DESIGNWORKS Chain Guide combines advanced polymer engineering with race-proven design to keep your chain tracking perfectly under...12311672- SKU:
- 12311672
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$102.95
